From 9b03fc4e695232aad2eb64a1b80b137532d05d54 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Wed, 16 Sep 2020 13:05:20 -0400
Subject: [PATCH 01/16] Initial reorganization.

entities.yaml specifies order, while actual definitions get their own files.
---
 src/schema/entities.yaml        | 152 ++++----------------------------
 src/schema/items/acq.yaml       |  20 +++++
 src/schema/items/ce.yaml        |  10 +++
 src/schema/items/dir.yaml       |   7 ++
 src/schema/items/echo.yaml      |  11 +++
 src/schema/items/mod.yaml       |   8 ++
 src/schema/items/proc.yaml      |  11 +++
 src/schema/items/rec.yaml       |   8 ++
 src/schema/items/recording.yaml |   9 ++
 src/schema/items/run.yaml       |   9 ++
 src/schema/items/ses.yaml       |  19 ++++
 src/schema/items/space.yaml     |   8 ++
 src/schema/items/split.yaml     |  16 ++++
 src/schema/items/sub.yaml       |   6 ++
 src/schema/items/task.yaml      |   9 ++
 15 files changed, 166 insertions(+), 137 deletions(-)
 create mode 100644 src/schema/items/acq.yaml
 create mode 100644 src/schema/items/ce.yaml
 create mode 100644 src/schema/items/dir.yaml
 create mode 100644 src/schema/items/echo.yaml
 create mode 100644 src/schema/items/mod.yaml
 create mode 100644 src/schema/items/proc.yaml
 create mode 100644 src/schema/items/rec.yaml
 create mode 100644 src/schema/items/recording.yaml
 create mode 100644 src/schema/items/run.yaml
 create mode 100644 src/schema/items/ses.yaml
 create mode 100644 src/schema/items/space.yaml
 create mode 100644 src/schema/items/split.yaml
 create mode 100644 src/schema/items/sub.yaml
 create mode 100644 src/schema/items/task.yaml

diff --git a/src/schema/entities.yaml b/src/schema/entities.yaml
index f1b6d1c6c1..1d9cc40354 100644
--- a/src/schema/entities.yaml
+++ b/src/schema/entities.yaml
@@ -1,138 +1,16 @@
 ---
-sub:
-  name: Subject
-  description: |
-    A person or animal participating in the study.
-  format: label
-ses:
-  name: Session
-  description: |
-    A logical grouping of neuroimaging and behavioral data consistent across
-    subjects.
-    Session can (but doesn't have to) be synonymous to a visit in a
-    longitudinal study.
-    In general, subjects will stay in the scanner during one session.
-    However, for example, if a subject has to leave the scanner room and then
-    be re-positioned on the scanner bed, the set of MRI acquisitions will still
-    be considered as a session and match sessions acquired in other subjects.
-    Similarly, in situations where different data types are obtained over
-    several visits (for example fMRI on one day followed by DWI the day after)
-    those can be grouped in one session.
-    Defining multiple sessions is appropriate when several identical or similar
-    data acquisitions are planned and performed on all -or most- subjects,
-    often in the case of some intervention between sessions (e.g., training).
-  format: label
-task:
-  name: Task
-  format: label
-  description: |
-    Each task has a unique label that MUST only consist of letters and/or
-    numbers (other characters, including spaces and underscores, are not
-    allowed).
-    Those labels MUST be consistent across subjects and sessions.
-acq:
-  name: Acquisition
-  description: |
-    The `acq-<label>` key/value pair corresponds to a custom label the
-    user MAY use to distinguish a different set of parameters used for
-    acquiring the same modality.
-    For example this should be used when a study includes two T1w images - one
-    full brain low resolution and and one restricted field of view but high
-    resolution.
-    In such case two files could have the following names:
-    `sub-01_acq-highres_T1w.nii.gz` and `sub-01_acq-lowres_T1w.nii.gz`, however
-    the user is free to choose any other label than highres and lowres as long
-    as they are consistent across subjects and sessions.
-    In case different sequences are used to record the same modality (e.g. RARE
-    and FLASH for T1w) this field can also be used to make that distinction.
-    At what level of detail to make the distinction (e.g. just between RARE and
-    FLASH, or between RARE, FLASH, and FLASHsubsampled) remains at the
-    discretion of the researcher.
-  format: label
-ce:
-  name: Contrast Enhancing Agent
-  description: |
-    The `ce-<label>` key/value can be used to distinguish
-    sequences using different contrast enhanced images.
-    The label is the name of the contrast agent.
-    The key `ContrastBolusIngredient` MAY be also be added in the JSON file,
-    with the same label.
-  format: label
-rec:
-  name: Reconstruction
-  description: |
-    The `rec-<label>` key/value can be used to distinguish
-    different reconstruction algorithms (for example ones using motion
-    correction).
-  format: label
-dir:
-  name: Phase-Encoding Direction
-  description: |
-    The `dir-<label>` key/value can be used to distinguish
-    different phase-encoding directions.
-  format: label
-run:
-  name: Run
-  description: |
-    If several scans of the same modality are acquired they MUST be indexed
-    with a key-value pair: `_run-1`, `_run-2`, ..., `_run-<index>`
-    (only nonnegative integers are allowed for the `<index>`).
-    When there is only one scan of a given type the run key MAY be omitted.
-  format: index
-mod:
-  name: Corresponding Modality
-  description: |
-    The `mod-<label>` key/value pair corresponds to modality label for defacing
-    masks, e.g., T1w, inplaneT1, referenced by a defacemask image.
-    E.g., `sub-01_mod-T1w_defacemask.nii.gz`.
-  format: label
-echo:
-  name: Echo
-  description: |
-    Multi-echo data MUST be split into one file per echo.
-    Each file shares the same name with the exception of the `_echo-<index>`
-    key/value.
-    Please note that the `<index>` denotes the number/index (in the form of a
-    nonnegative integer) of the echo not the echo time value which needs to be
-    stored in the field `EchoTime` of the separate JSON file.
-  format: index
-recording:
-  name: Recording
-  description: |
-    More than one continuous recording file can be included (with different
-    sampling frequencies).
-    In such case use different labels.
-    For example: `_recording-contrast`, `_recording-saturation`.
-  format: label
-proc:
-  name: Processed (on device)
-  description: |
-    The proc label is analogous to rec for MR and denotes a variant of a file
-    that was a result of particular processing performed on the device.
-    This is useful for files produced in particular by Elekta’s MaxFilter
-    (e.g. sss, tsss, trans, quat, mc, etc.), which some installations impose to
-    be run on raw data because of active shielding software corrections before
-    the MEG data can actually be exploited.
-  format: label
-space:
-  name: Space
-  description: |
-    The space label (`*[_space-<label>]_electrodes.tsv`) can be used
-    to indicate the way in which electrode positions are interpreted.
-    The space label needs to be taken from the list in Appendix VIII.
-  format: label
-split:
-  name: Split
-  description: |
-    In the case of long data recordings that exceed a file size of 2Gb, the
-    .fif files are conventionally split into multiple parts.
-    Each of these files has an internal pointer to the next file.
-    This is important when renaming these split recordings to the BIDS
-    convention.
-
-    Instead of a simple renaming, files should be read in and saved under their
-    new names with dedicated tools like MNE, which will ensure that not only
-    the file names, but also the internal file pointers will be updated.
-    It is RECOMMENDED that .fif files with multiple parts use the
-    `split-<index>` entity to indicate each part.
-  format: index
+# This file determines the order of entities in filenames.
+- sub
+- ses
+- task
+- acq
+- ce
+- rec
+- dir
+- run
+- mod
+- echo
+- recording
+- proc
+- space
+- split
diff --git a/src/schema/items/acq.yaml b/src/schema/items/acq.yaml
new file mode 100644
index 0000000000..fb3873a31c
--- /dev/null
+++ b/src/schema/items/acq.yaml
@@ -0,0 +1,20 @@
+---
+name: Acquisition
+class: entity
+description: |
+  The `acq-<label>` key/value pair corresponds to a custom label the
+  user MAY use to distinguish a different set of parameters used for
+  acquiring the same modality.
+  For example this should be used when a study includes two T1w images - one
+  full brain low resolution and and one restricted field of view but high
+  resolution.
+  In such case two files could have the following names:
+  `sub-01_acq-highres_T1w.nii.gz` and `sub-01_acq-lowres_T1w.nii.gz`, however
+  the user is free to choose any other label than highres and lowres as long
+  as they are consistent across subjects and sessions.
+  In case different sequences are used to record the same modality (e.g. RARE
+  and FLASH for T1w) this field can also be used to make that distinction.
+  At what level of detail to make the distinction (e.g. just between RARE and
+  FLASH, or between RARE, FLASH, and FLASHsubsampled) remains at the
+  discretion of the researcher.
+format: label
diff --git a/src/schema/items/ce.yaml b/src/schema/items/ce.yaml
new file mode 100644
index 0000000000..34fb40e4a4
--- /dev/null
+++ b/src/schema/items/ce.yaml
@@ -0,0 +1,10 @@
+---
+name: Contrast Enhancing Agent
+class: entity
+description: |
+  The `ce-<label>` key/value can be used to distinguish
+  sequences using different contrast enhanced images.
+  The label is the name of the contrast agent.
+  The key `ContrastBolusIngredient` MAY be also be added in the JSON file,
+  with the same label.
+format: label
diff --git a/src/schema/items/dir.yaml b/src/schema/items/dir.yaml
new file mode 100644
index 0000000000..37ccdbcb6c
--- /dev/null
+++ b/src/schema/items/dir.yaml
@@ -0,0 +1,7 @@
+---
+name: Phase-Encoding Direction
+class: entity
+description: |
+  The `dir-<label>` key/value can be used to distinguish
+  different phase-encoding directions.
+format: label
diff --git a/src/schema/items/echo.yaml b/src/schema/items/echo.yaml
new file mode 100644
index 0000000000..29ba7abb52
--- /dev/null
+++ b/src/schema/items/echo.yaml
@@ -0,0 +1,11 @@
+---
+name: Echo
+class: entity
+description: |
+  Multi-echo data MUST be split into one file per echo.
+  Each file shares the same name with the exception of the `_echo-<index>`
+  key/value.
+  Please note that the `<index>` denotes the number/index (in the form of a
+  nonnegative integer) of the echo not the echo time value which needs to be
+  stored in the field `EchoTime` of the separate JSON file.
+format: index
diff --git a/src/schema/items/mod.yaml b/src/schema/items/mod.yaml
new file mode 100644
index 0000000000..7112197f67
--- /dev/null
+++ b/src/schema/items/mod.yaml
@@ -0,0 +1,8 @@
+---
+name: Corresponding Modality
+class: entity
+description: |
+  The `mod-<label>` key/value pair corresponds to modality label for defacing
+  masks, e.g., T1w, inplaneT1, referenced by a defacemask image.
+  E.g., `sub-01_mod-T1w_defacemask.nii.gz`.
+format: label
diff --git a/src/schema/items/proc.yaml b/src/schema/items/proc.yaml
new file mode 100644
index 0000000000..79aae87e07
--- /dev/null
+++ b/src/schema/items/proc.yaml
@@ -0,0 +1,11 @@
+---
+name: Processed (on device)
+class: entity
+description: |
+  The proc label is analogous to rec for MR and denotes a variant of a file
+  that was a result of particular processing performed on the device.
+  This is useful for files produced in particular by Elekta’s MaxFilter
+  (e.g. sss, tsss, trans, quat, mc, etc.), which some installations impose to
+  be run on raw data because of active shielding software corrections before
+  the MEG data can actually be exploited.
+format: label
diff --git a/src/schema/items/rec.yaml b/src/schema/items/rec.yaml
new file mode 100644
index 0000000000..c24d9919bc
--- /dev/null
+++ b/src/schema/items/rec.yaml
@@ -0,0 +1,8 @@
+---
+name: Reconstruction
+class: entity
+description: |
+  The `rec-<label>` key/value can be used to distinguish
+  different reconstruction algorithms (for example ones using motion
+  correction).
+format: label
diff --git a/src/schema/items/recording.yaml b/src/schema/items/recording.yaml
new file mode 100644
index 0000000000..73ef7540b3
--- /dev/null
+++ b/src/schema/items/recording.yaml
@@ -0,0 +1,9 @@
+---
+name: Recording
+class: entity
+description: |
+  More than one continuous recording file can be included (with different
+  sampling frequencies).
+  In such case use different labels.
+  For example: `_recording-contrast`, `_recording-saturation`.
+format: label
diff --git a/src/schema/items/run.yaml b/src/schema/items/run.yaml
new file mode 100644
index 0000000000..e3f22027c8
--- /dev/null
+++ b/src/schema/items/run.yaml
@@ -0,0 +1,9 @@
+---
+name: Run
+class: entity
+description: |
+  If several scans of the same modality are acquired they MUST be indexed
+  with a key-value pair: `_run-1`, `_run-2`, ..., `_run-<index>`
+  (only nonnegative integers are allowed for the `<index>`).
+  When there is only one scan of a given type the run key MAY be omitted.
+format: index
diff --git a/src/schema/items/ses.yaml b/src/schema/items/ses.yaml
new file mode 100644
index 0000000000..3655f95f67
--- /dev/null
+++ b/src/schema/items/ses.yaml
@@ -0,0 +1,19 @@
+---
+name: Session
+class: entity
+description: |
+  A logical grouping of neuroimaging and behavioral data consistent across
+  subjects.
+  Session can (but doesn't have to) be synonymous to a visit in a
+  longitudinal study.
+  In general, subjects will stay in the scanner during one session.
+  However, for example, if a subject has to leave the scanner room and then
+  be re-positioned on the scanner bed, the set of MRI acquisitions will still
+  be considered as a session and match sessions acquired in other subjects.
+  Similarly, in situations where different data types are obtained over
+  several visits (for example fMRI on one day followed by DWI the day after)
+  those can be grouped in one session.
+  Defining multiple sessions is appropriate when several identical or similar
+  data acquisitions are planned and performed on all -or most- subjects,
+  often in the case of some intervention between sessions (e.g., training).
+format: label
diff --git a/src/schema/items/space.yaml b/src/schema/items/space.yaml
new file mode 100644
index 0000000000..104978326b
--- /dev/null
+++ b/src/schema/items/space.yaml
@@ -0,0 +1,8 @@
+---
+name: Space
+class: entity
+description: |
+  The space label (`*[_space-<label>]_electrodes.tsv`) can be used
+  to indicate the way in which electrode positions are interpreted.
+  The space label needs to be taken from the list in Appendix VIII.
+format: label
diff --git a/src/schema/items/split.yaml b/src/schema/items/split.yaml
new file mode 100644
index 0000000000..8d7d60ef04
--- /dev/null
+++ b/src/schema/items/split.yaml
@@ -0,0 +1,16 @@
+---
+name: Split
+class: entity
+description: |
+  In the case of long data recordings that exceed a file size of 2Gb, the
+  .fif files are conventionally split into multiple parts.
+  Each of these files has an internal pointer to the next file.
+  This is important when renaming these split recordings to the BIDS
+  convention.
+
+  Instead of a simple renaming, files should be read in and saved under their
+  new names with dedicated tools like MNE, which will ensure that not only
+  the file names, but also the internal file pointers will be updated.
+  It is RECOMMENDED that .fif files with multiple parts use the
+  `split-<index>` entity to indicate each part.
+format: index
diff --git a/src/schema/items/sub.yaml b/src/schema/items/sub.yaml
new file mode 100644
index 0000000000..9aa759b2bd
--- /dev/null
+++ b/src/schema/items/sub.yaml
@@ -0,0 +1,6 @@
+---
+name: Subject
+class: entity
+description: |
+  A person or animal participating in the study.
+format: label
diff --git a/src/schema/items/task.yaml b/src/schema/items/task.yaml
new file mode 100644
index 0000000000..2366ca9616
--- /dev/null
+++ b/src/schema/items/task.yaml
@@ -0,0 +1,9 @@
+---
+name: Task
+class: entity
+description: |
+  Each task has a unique label that MUST only consist of letters and/or
+  numbers (other characters, including spaces and underscores, are not
+  allowed).
+  Those labels MUST be consistent across subjects and sessions.
+format: label

From b5af5ba1358be3f8bd2d772b5d269b481cc68e8d Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Wed, 16 Sep 2020 13:12:27 -0400
Subject: [PATCH 02/16] Clarify YAML structure

Some fields will probably be general, while others will be specific to the item class.
---
 src/schema/items/acq.yaml       | 1 +
 src/schema/items/ce.yaml        | 1 +
 src/schema/items/dir.yaml       | 1 +
 src/schema/items/echo.yaml      | 1 +
 src/schema/items/mod.yaml       | 1 +
 src/schema/items/proc.yaml      | 1 +
 src/schema/items/rec.yaml       | 1 +
 src/schema/items/recording.yaml | 1 +
 src/schema/items/run.yaml       | 1 +
 src/schema/items/ses.yaml       | 1 +
 src/schema/items/space.yaml     | 1 +
 src/schema/items/split.yaml     | 1 +
 src/schema/items/sub.yaml       | 1 +
 src/schema/items/task.yaml      | 1 +
 14 files changed, 14 insertions(+)

diff --git a/src/schema/items/acq.yaml b/src/schema/items/acq.yaml
index fb3873a31c..d4c33303ed 100644
--- a/src/schema/items/acq.yaml
+++ b/src/schema/items/acq.yaml
@@ -17,4 +17,5 @@ description: |
   At what level of detail to make the distinction (e.g. just between RARE and
   FLASH, or between RARE, FLASH, and FLASHsubsampled) remains at the
   discretion of the researcher.
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/ce.yaml b/src/schema/items/ce.yaml
index 34fb40e4a4..5665602730 100644
--- a/src/schema/items/ce.yaml
+++ b/src/schema/items/ce.yaml
@@ -7,4 +7,5 @@ description: |
   The label is the name of the contrast agent.
   The key `ContrastBolusIngredient` MAY be also be added in the JSON file,
   with the same label.
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/dir.yaml b/src/schema/items/dir.yaml
index 37ccdbcb6c..bb1e9dd611 100644
--- a/src/schema/items/dir.yaml
+++ b/src/schema/items/dir.yaml
@@ -4,4 +4,5 @@ class: entity
 description: |
   The `dir-<label>` key/value can be used to distinguish
   different phase-encoding directions.
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/echo.yaml b/src/schema/items/echo.yaml
index 29ba7abb52..b42f76a628 100644
--- a/src/schema/items/echo.yaml
+++ b/src/schema/items/echo.yaml
@@ -8,4 +8,5 @@ description: |
   Please note that the `<index>` denotes the number/index (in the form of a
   nonnegative integer) of the echo not the echo time value which needs to be
   stored in the field `EchoTime` of the separate JSON file.
+# Entity-specific fields
 format: index
diff --git a/src/schema/items/mod.yaml b/src/schema/items/mod.yaml
index 7112197f67..e80387fc57 100644
--- a/src/schema/items/mod.yaml
+++ b/src/schema/items/mod.yaml
@@ -5,4 +5,5 @@ description: |
   The `mod-<label>` key/value pair corresponds to modality label for defacing
   masks, e.g., T1w, inplaneT1, referenced by a defacemask image.
   E.g., `sub-01_mod-T1w_defacemask.nii.gz`.
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/proc.yaml b/src/schema/items/proc.yaml
index 79aae87e07..3b478e5be0 100644
--- a/src/schema/items/proc.yaml
+++ b/src/schema/items/proc.yaml
@@ -8,4 +8,5 @@ description: |
   (e.g. sss, tsss, trans, quat, mc, etc.), which some installations impose to
   be run on raw data because of active shielding software corrections before
   the MEG data can actually be exploited.
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/rec.yaml b/src/schema/items/rec.yaml
index c24d9919bc..5535900bfe 100644
--- a/src/schema/items/rec.yaml
+++ b/src/schema/items/rec.yaml
@@ -5,4 +5,5 @@ description: |
   The `rec-<label>` key/value can be used to distinguish
   different reconstruction algorithms (for example ones using motion
   correction).
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/recording.yaml b/src/schema/items/recording.yaml
index 73ef7540b3..fca62489d5 100644
--- a/src/schema/items/recording.yaml
+++ b/src/schema/items/recording.yaml
@@ -6,4 +6,5 @@ description: |
   sampling frequencies).
   In such case use different labels.
   For example: `_recording-contrast`, `_recording-saturation`.
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/run.yaml b/src/schema/items/run.yaml
index e3f22027c8..0f4e5bc18c 100644
--- a/src/schema/items/run.yaml
+++ b/src/schema/items/run.yaml
@@ -6,4 +6,5 @@ description: |
   with a key-value pair: `_run-1`, `_run-2`, ..., `_run-<index>`
   (only nonnegative integers are allowed for the `<index>`).
   When there is only one scan of a given type the run key MAY be omitted.
+# Entity-specific fields
 format: index
diff --git a/src/schema/items/ses.yaml b/src/schema/items/ses.yaml
index 3655f95f67..6f6e7523e9 100644
--- a/src/schema/items/ses.yaml
+++ b/src/schema/items/ses.yaml
@@ -16,4 +16,5 @@ description: |
   Defining multiple sessions is appropriate when several identical or similar
   data acquisitions are planned and performed on all -or most- subjects,
   often in the case of some intervention between sessions (e.g., training).
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/space.yaml b/src/schema/items/space.yaml
index 104978326b..6486e2e14a 100644
--- a/src/schema/items/space.yaml
+++ b/src/schema/items/space.yaml
@@ -5,4 +5,5 @@ description: |
   The space label (`*[_space-<label>]_electrodes.tsv`) can be used
   to indicate the way in which electrode positions are interpreted.
   The space label needs to be taken from the list in Appendix VIII.
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/split.yaml b/src/schema/items/split.yaml
index 8d7d60ef04..edef98a700 100644
--- a/src/schema/items/split.yaml
+++ b/src/schema/items/split.yaml
@@ -13,4 +13,5 @@ description: |
   the file names, but also the internal file pointers will be updated.
   It is RECOMMENDED that .fif files with multiple parts use the
   `split-<index>` entity to indicate each part.
+# Entity-specific fields
 format: index
diff --git a/src/schema/items/sub.yaml b/src/schema/items/sub.yaml
index 9aa759b2bd..1d809f1f69 100644
--- a/src/schema/items/sub.yaml
+++ b/src/schema/items/sub.yaml
@@ -3,4 +3,5 @@ name: Subject
 class: entity
 description: |
   A person or animal participating in the study.
+# Entity-specific fields
 format: label
diff --git a/src/schema/items/task.yaml b/src/schema/items/task.yaml
index 2366ca9616..60c1c27aca 100644
--- a/src/schema/items/task.yaml
+++ b/src/schema/items/task.yaml
@@ -6,4 +6,5 @@ description: |
   numbers (other characters, including spaces and underscores, are not
   allowed).
   Those labels MUST be consistent across subjects and sessions.
+# Entity-specific fields
 format: label

From 709351df868db66e4ea65d8f109969ce690ad3a2 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Wed, 16 Sep 2020 13:22:16 -0400
Subject: [PATCH 03/16] Add example suffix file.

---
 src/schema/items/T1w.yaml | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/schema/items/T1w.yaml

diff --git a/src/schema/items/T1w.yaml b/src/schema/items/T1w.yaml
new file mode 100644
index 0000000000..a0f9fffa1c
--- /dev/null
+++ b/src/schema/items/T1w.yaml
@@ -0,0 +1,17 @@
+---
+name: T1-weighted
+class: suffix
+description: |
+  T1-weighted MRI scan.
+# Suffix-specific fields
+extensions:
+  - .nii.gz
+  - .nii
+  - .json
+entities:
+  sub: required
+  ses: optional
+  run: optional
+  acq: optional
+  ce: optional
+  rec: optional

From 594b9e9b94581fc1ec4c110ab402625f8bcdd8b4 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Thu, 17 Sep 2020 18:52:42 -0400
Subject: [PATCH 04/16] Draft other class examples.

---
 src/schema/items/.nii.gz.yaml      | 5 +++++
 src/schema/items/Manufacturer.yaml | 6 ++++++
 src/schema/items/anat.yaml         | 5 +++++
 3 files changed, 16 insertions(+)
 create mode 100644 src/schema/items/.nii.gz.yaml
 create mode 100644 src/schema/items/Manufacturer.yaml
 create mode 100644 src/schema/items/anat.yaml

diff --git a/src/schema/items/.nii.gz.yaml b/src/schema/items/.nii.gz.yaml
new file mode 100644
index 0000000000..88424623b8
--- /dev/null
+++ b/src/schema/items/.nii.gz.yaml
@@ -0,0 +1,5 @@
+---
+name: Gzipped Nifti
+class: extension
+description: |
+  A gzipped nifti file.
diff --git a/src/schema/items/Manufacturer.yaml b/src/schema/items/Manufacturer.yaml
new file mode 100644
index 0000000000..b87952f8de
--- /dev/null
+++ b/src/schema/items/Manufacturer.yaml
@@ -0,0 +1,6 @@
+---
+name: Manufacturer
+class: metadata
+description: |
+  Manufacturer of the equipment that produced the composite instances.
+  Corresponds to DICOM Tag 0008, 0070 `Manufacturer`.
diff --git a/src/schema/items/anat.yaml b/src/schema/items/anat.yaml
new file mode 100644
index 0000000000..e7028ffb1c
--- /dev/null
+++ b/src/schema/items/anat.yaml
@@ -0,0 +1,5 @@
+---
+name: Anatomical MRI
+class: datatype
+description: |
+  Anatomical magnetic resonance imaging data.

From 036ce512d229b88bd9276c3030fdd308b7869ae2 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Thu, 17 Sep 2020 19:22:49 -0400
Subject: [PATCH 05/16] Change auxdatatypes to auxmodalities.

Also make markers and headshape into auxmodalities.
---
 .../channels.yaml                             |  0
 .../electrodes.yaml                           |  0
 .../events.yaml                               |  0
 src/schema/auxmodalities/headshape.yaml       | 13 ++++++++++++
 src/schema/auxmodalities/markers.yaml         | 13 ++++++++++++
 .../photo.yaml                                |  0
 src/schema/datatypes/meg.yaml                 | 21 -------------------
 7 files changed, 26 insertions(+), 21 deletions(-)
 rename src/schema/{auxdatatypes => auxmodalities}/channels.yaml (100%)
 rename src/schema/{auxdatatypes => auxmodalities}/electrodes.yaml (100%)
 rename src/schema/{auxdatatypes => auxmodalities}/events.yaml (100%)
 create mode 100644 src/schema/auxmodalities/headshape.yaml
 create mode 100644 src/schema/auxmodalities/markers.yaml
 rename src/schema/{auxdatatypes => auxmodalities}/photo.yaml (100%)

diff --git a/src/schema/auxdatatypes/channels.yaml b/src/schema/auxmodalities/channels.yaml
similarity index 100%
rename from src/schema/auxdatatypes/channels.yaml
rename to src/schema/auxmodalities/channels.yaml
diff --git a/src/schema/auxdatatypes/electrodes.yaml b/src/schema/auxmodalities/electrodes.yaml
similarity index 100%
rename from src/schema/auxdatatypes/electrodes.yaml
rename to src/schema/auxmodalities/electrodes.yaml
diff --git a/src/schema/auxdatatypes/events.yaml b/src/schema/auxmodalities/events.yaml
similarity index 100%
rename from src/schema/auxdatatypes/events.yaml
rename to src/schema/auxmodalities/events.yaml
diff --git a/src/schema/auxmodalities/headshape.yaml b/src/schema/auxmodalities/headshape.yaml
new file mode 100644
index 0000000000..6fa607191a
--- /dev/null
+++ b/src/schema/auxmodalities/headshape.yaml
@@ -0,0 +1,13 @@
+---
+- datatypes:
+    - meg
+  suffixes:
+    - headshape
+  extensions:
+    - .pos
+    - .txt
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+    space: optional
diff --git a/src/schema/auxmodalities/markers.yaml b/src/schema/auxmodalities/markers.yaml
new file mode 100644
index 0000000000..b8ead7bf93
--- /dev/null
+++ b/src/schema/auxmodalities/markers.yaml
@@ -0,0 +1,13 @@
+---
+  datatypes:
+    - meg
+  suffixes:
+    - markers
+  extensions:
+    - .json
+  entities:
+    sub: required
+    ses: optional
+    task: optional
+    acq: optional
+    space: optional
diff --git a/src/schema/auxdatatypes/photo.yaml b/src/schema/auxmodalities/photo.yaml
similarity index 100%
rename from src/schema/auxdatatypes/photo.yaml
rename to src/schema/auxmodalities/photo.yaml
diff --git a/src/schema/datatypes/meg.yaml b/src/schema/datatypes/meg.yaml
index 1361781733..33ce8d6a2e 100644
--- a/src/schema/datatypes/meg.yaml
+++ b/src/schema/datatypes/meg.yaml
@@ -22,24 +22,3 @@
     run: optional
     proc: optional
     split: optional
-# Second group
-- suffixes:
-    - headshape
-  extensions:
-    - .pos
-    - .txt
-  entities:
-    sub: required
-    ses: optional
-    acq: optional
-    space: optional
-- suffixes:
-    - markers
-  extensions:
-    - .json
-  entities:
-    sub: required
-    ses: optional
-    task: optional
-    acq: optional
-    space: optional

From 5f53f35fa86a672cc7895586c1cf346097779999 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Thu, 17 Sep 2020 19:22:57 -0400
Subject: [PATCH 06/16] Add Common principles.

---
 src/schema/common_principles.yaml | 103 ++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 src/schema/common_principles.yaml

diff --git a/src/schema/common_principles.yaml b/src/schema/common_principles.yaml
new file mode 100644
index 0000000000..805754ed28
--- /dev/null
+++ b/src/schema/common_principles.yaml
@@ -0,0 +1,103 @@
+---
+Dataset:
+  description: |
+    A set of neuroimaging and behavioral data acquired for a purpose of a
+    particular study.
+    A dataset consists of data acquired from one or more subjects, possibly
+    from multiple sessions.
+Subject:
+  description: |
+    A person or animal participating in the study.
+    Used interchangeably with term Participant.
+Session:
+  description: |
+    A logical grouping of neuroimaging and behavioral data consistent across
+    subjects.
+    Session can (but doesn't have to) be synonymous to a visit in a
+    longitudinal study.
+    In general, subjects will stay in the scanner during one session.
+    However, for example, if a subject has to leave the scanner room and then
+    be re-positioned on the scanner bed, the set of MRI acquisitions will still
+    be considered as a session and match sessions acquired in other subjects.
+    Similarly, in situations where different data types are obtained over
+    several visits (for example fMRI on one day followed by DWI the day after)
+    those can be grouped in one session.
+    Defining multiple sessions is appropriate when several identical or similar
+    data acquisitions
+    are planned and performed on all -or most- subjects, often in the case of
+    some intervention between sessions (e.g., training).
+Data acquisition:
+  description: |
+    A continuous uninterrupted block of time during which a brain scanning
+    instrument was acquiring data according to particular scanning
+    sequence/protocol.
+Data type:
+  description: |
+    A functional group of different types of data.
+    BIDS defines eight data types:
+    func (task based and resting state functional MRI),
+    dwi (diffusion weighted imaging),
+    fmap (field inhomogeneity mapping data such as field maps),
+    anat (structural imaging such as T1, T2, etc.),
+    meg (magnetoencephalography),
+    eeg (electroencephalography),
+    ieeg (intracranial electroencephalography),
+    beh (behavioral).
+    Data files are contained in a directory named for the data type.
+    In raw datasets, the data type directory is nested inside subject and
+    (optionally) session directories.
+Task:
+  description: |
+    A set of structured activities performed by the participant.
+    Tasks are usually accompanied by stimuli and responses, and can greatly
+    vary in complexity.
+    For the purpose of this specification we consider the so-called
+    "resting state" a task.
+    In the context of brain scanning, a task is always tied to one data
+    acquisition.
+    Therefore, even if during one acquisition the subject performed multiple
+    conceptually different behaviors (with different sets of instructions) they
+    will be considered one (combined) task.
+Event:
+  description: |
+    A stimulus or subject response recorded during a task.
+    Each event has an onset time and duration.
+    Note that not all tasks will have recorded events (e.g., “resting state”).
+Run:
+  description: |
+    An uninterrupted repetition of data acquisition that has the same
+    acquisition parameters and task (however events can change from run to run
+    due to different subject response or randomized nature of the stimuli).
+    Run is a synonym of a data acquisition.
+Modality:
+  description: |
+    The category of brain data recorded by a file.
+    For MRI data, different pulse sequences are considered distinct modalities,
+    such as T1w, bold or dwi.
+    For passive recording techniques, such as EEG, MEG or iEEG, the technique
+    is sufficiently uniform to define the modalities eeg, meg and ieeg.
+    When applicable, the modality is indicated in the suffix.
+    The modality may overlap with, but should not be confused with the data
+    type.
+index:
+  description: |
+    A nonnegative integer, possibly prefixed with arbitrary number of 0s for
+    consistent indentation, e.g., it is 01 in run-01 following run-<index>
+    specification.
+label:
+  description: |
+    An alphanumeric value, possibly prefixed with arbitrary number of 0s for
+    consistent indentation, e.g., it is rest in task-rest following
+    task-<label> specification.
+suffix:
+  description: |
+    An alphanumeric value, located after the key-value_ pairs
+    (thus after the final _), right before the File extension,
+    e.g., it is eeg in sub-05_task-matchingpennies_eeg.vhdr.
+File extension:
+  description: |
+    A portion of the the file name after the left-most period (.) preceded by
+    any other alphanumeric.
+    For example, .gitignore does not have a file extension, but the file
+    extension of test.nii.gz is .nii.gz.
+    Note that the left-most period is included in the file extension.

From 6b83898371a85baaac5e4b555ad46a695c5d050a Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Thu, 17 Sep 2020 19:23:57 -0400
Subject: [PATCH 07/16] Rename modalities.yaml.

Related to #593.
---
 src/schema/{modalities.yaml => instruments.yaml} | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
 rename src/schema/{modalities.yaml => instruments.yaml} (71%)

diff --git a/src/schema/modalities.yaml b/src/schema/instruments.yaml
similarity index 71%
rename from src/schema/modalities.yaml
rename to src/schema/instruments.yaml
index f49e671b65..f3d66662d5 100644
--- a/src/schema/modalities.yaml
+++ b/src/schema/instruments.yaml
@@ -6,13 +6,10 @@ mri:
     - dwi
     - fmap
     - func
-eeg:
-  name: Electroencephalography
+bioamp:
+  name: Biopotential Amplification
   datatypes:
     - eeg
-ieeg:
-  name: Intracranial Electroencephalography
-  datatypes:
     - ieeg
 meg:
   name: Magnetoencephalography

From 97a62e00453e5bdb4bf05755bd5b2f1c6f093f13 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Tue, 29 Sep 2020 14:11:26 -0400
Subject: [PATCH 08/16] items --> terms

---
 src/schema/entities.yaml                      | 44 ++++++++++++-------
 src/schema/{items => terms}/.nii.gz.yaml      |  0
 src/schema/{items => terms}/Manufacturer.yaml |  0
 src/schema/{items => terms}/T1w.yaml          |  0
 src/schema/{items => terms}/acq.yaml          |  4 +-
 src/schema/{items => terms}/anat.yaml         |  0
 src/schema/{items => terms}/ce.yaml           |  0
 src/schema/{items => terms}/dir.yaml          |  0
 src/schema/{items => terms}/echo.yaml         |  0
 src/schema/{items => terms}/mod.yaml          |  0
 src/schema/{items => terms}/proc.yaml         |  0
 src/schema/{items => terms}/rec.yaml          |  0
 src/schema/{items => terms}/recording.yaml    |  0
 src/schema/{items => terms}/run.yaml          |  0
 src/schema/{items => terms}/ses.yaml          |  0
 src/schema/{items => terms}/space.yaml        |  0
 src/schema/{items => terms}/split.yaml        |  0
 src/schema/{items => terms}/sub.yaml          |  0
 src/schema/{items => terms}/task.yaml         |  0
 19 files changed, 30 insertions(+), 18 deletions(-)
 rename src/schema/{items => terms}/.nii.gz.yaml (100%)
 rename src/schema/{items => terms}/Manufacturer.yaml (100%)
 rename src/schema/{items => terms}/T1w.yaml (100%)
 rename src/schema/{items => terms}/acq.yaml (94%)
 rename src/schema/{items => terms}/anat.yaml (100%)
 rename src/schema/{items => terms}/ce.yaml (100%)
 rename src/schema/{items => terms}/dir.yaml (100%)
 rename src/schema/{items => terms}/echo.yaml (100%)
 rename src/schema/{items => terms}/mod.yaml (100%)
 rename src/schema/{items => terms}/proc.yaml (100%)
 rename src/schema/{items => terms}/rec.yaml (100%)
 rename src/schema/{items => terms}/recording.yaml (100%)
 rename src/schema/{items => terms}/run.yaml (100%)
 rename src/schema/{items => terms}/ses.yaml (100%)
 rename src/schema/{items => terms}/space.yaml (100%)
 rename src/schema/{items => terms}/split.yaml (100%)
 rename src/schema/{items => terms}/sub.yaml (100%)
 rename src/schema/{items => terms}/task.yaml (100%)

diff --git a/src/schema/entities.yaml b/src/schema/entities.yaml
index 1d9cc40354..10c5f16969 100644
--- a/src/schema/entities.yaml
+++ b/src/schema/entities.yaml
@@ -1,16 +1,30 @@
 ---
-# This file determines the order of entities in filenames.
-- sub
-- ses
-- task
-- acq
-- ce
-- rec
-- dir
-- run
-- mod
-- echo
-- recording
-- proc
-- space
-- split
+# Ordering and attributes of entities
+- sub:
+    format: label
+- ses:
+    format: label
+- task:
+    format: label
+- acq:
+    format: label
+- ce:
+    format: label
+- rec:
+    format: label
+- dir:
+    format: label
+- run:
+    format: index
+- mod:
+    format: label
+- echo:
+    format: index
+- recording:
+    format: label
+- proc:
+    format: label
+- space:
+    format: label
+- split:
+    format: index
diff --git a/src/schema/items/.nii.gz.yaml b/src/schema/terms/.nii.gz.yaml
similarity index 100%
rename from src/schema/items/.nii.gz.yaml
rename to src/schema/terms/.nii.gz.yaml
diff --git a/src/schema/items/Manufacturer.yaml b/src/schema/terms/Manufacturer.yaml
similarity index 100%
rename from src/schema/items/Manufacturer.yaml
rename to src/schema/terms/Manufacturer.yaml
diff --git a/src/schema/items/T1w.yaml b/src/schema/terms/T1w.yaml
similarity index 100%
rename from src/schema/items/T1w.yaml
rename to src/schema/terms/T1w.yaml
diff --git a/src/schema/items/acq.yaml b/src/schema/terms/acq.yaml
similarity index 94%
rename from src/schema/items/acq.yaml
rename to src/schema/terms/acq.yaml
index d4c33303ed..6a5e70a356 100644
--- a/src/schema/items/acq.yaml
+++ b/src/schema/terms/acq.yaml
@@ -1,6 +1,5 @@
 ---
 name: Acquisition
-class: entity
 description: |
   The `acq-<label>` key/value pair corresponds to a custom label the
   user MAY use to distinguish a different set of parameters used for
@@ -17,5 +16,4 @@ description: |
   At what level of detail to make the distinction (e.g. just between RARE and
   FLASH, or between RARE, FLASH, and FLASHsubsampled) remains at the
   discretion of the researcher.
-# Entity-specific fields
-format: label
+
diff --git a/src/schema/items/anat.yaml b/src/schema/terms/anat.yaml
similarity index 100%
rename from src/schema/items/anat.yaml
rename to src/schema/terms/anat.yaml
diff --git a/src/schema/items/ce.yaml b/src/schema/terms/ce.yaml
similarity index 100%
rename from src/schema/items/ce.yaml
rename to src/schema/terms/ce.yaml
diff --git a/src/schema/items/dir.yaml b/src/schema/terms/dir.yaml
similarity index 100%
rename from src/schema/items/dir.yaml
rename to src/schema/terms/dir.yaml
diff --git a/src/schema/items/echo.yaml b/src/schema/terms/echo.yaml
similarity index 100%
rename from src/schema/items/echo.yaml
rename to src/schema/terms/echo.yaml
diff --git a/src/schema/items/mod.yaml b/src/schema/terms/mod.yaml
similarity index 100%
rename from src/schema/items/mod.yaml
rename to src/schema/terms/mod.yaml
diff --git a/src/schema/items/proc.yaml b/src/schema/terms/proc.yaml
similarity index 100%
rename from src/schema/items/proc.yaml
rename to src/schema/terms/proc.yaml
diff --git a/src/schema/items/rec.yaml b/src/schema/terms/rec.yaml
similarity index 100%
rename from src/schema/items/rec.yaml
rename to src/schema/terms/rec.yaml
diff --git a/src/schema/items/recording.yaml b/src/schema/terms/recording.yaml
similarity index 100%
rename from src/schema/items/recording.yaml
rename to src/schema/terms/recording.yaml
diff --git a/src/schema/items/run.yaml b/src/schema/terms/run.yaml
similarity index 100%
rename from src/schema/items/run.yaml
rename to src/schema/terms/run.yaml
diff --git a/src/schema/items/ses.yaml b/src/schema/terms/ses.yaml
similarity index 100%
rename from src/schema/items/ses.yaml
rename to src/schema/terms/ses.yaml
diff --git a/src/schema/items/space.yaml b/src/schema/terms/space.yaml
similarity index 100%
rename from src/schema/items/space.yaml
rename to src/schema/terms/space.yaml
diff --git a/src/schema/items/split.yaml b/src/schema/terms/split.yaml
similarity index 100%
rename from src/schema/items/split.yaml
rename to src/schema/terms/split.yaml
diff --git a/src/schema/items/sub.yaml b/src/schema/terms/sub.yaml
similarity index 100%
rename from src/schema/items/sub.yaml
rename to src/schema/terms/sub.yaml
diff --git a/src/schema/items/task.yaml b/src/schema/terms/task.yaml
similarity index 100%
rename from src/schema/items/task.yaml
rename to src/schema/terms/task.yaml

From 35878755d5bb34ad8251848aa7e857652b374975 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Tue, 29 Sep 2020 14:11:43 -0400
Subject: [PATCH 09/16] Add auxmodalities.

---
 src/schema/auxmodalities/events.yaml | 11 +++++++----
 src/schema/auxmodalities/physio.yaml | 18 ++++++++++++++++++
 src/schema/auxmodalities/stim.yaml   | 18 ++++++++++++++++++
 3 files changed, 43 insertions(+), 4 deletions(-)
 create mode 100644 src/schema/auxmodalities/physio.yaml
 create mode 100644 src/schema/auxmodalities/stim.yaml

diff --git a/src/schema/auxmodalities/events.yaml b/src/schema/auxmodalities/events.yaml
index 3c0ec521c1..c8698fd269 100644
--- a/src/schema/auxmodalities/events.yaml
+++ b/src/schema/auxmodalities/events.yaml
@@ -3,13 +3,16 @@
     - meg
     - eeg
     - ieeg
+    - func
+    - beh
   suffixes:
     - events
   extensions:
     - .json
     - .tsv
   entities:
-    sub: required
-    ses: optional
-    task: required
-    run: optional
+    - matches: required
+    - sub: required
+      ses: optional
+      task: required
+      run: optional
diff --git a/src/schema/auxmodalities/physio.yaml b/src/schema/auxmodalities/physio.yaml
new file mode 100644
index 0000000000..015cb4ed1a
--- /dev/null
+++ b/src/schema/auxmodalities/physio.yaml
@@ -0,0 +1,18 @@
+---
+- datatypes:
+    - meg
+    - eeg
+    - ieeg
+    - func
+    - beh
+  suffixes:
+    - physio
+  extensions:
+    - .json
+    - .tsv.gz
+  entities:
+    - matches: required
+    - sub: required
+      ses: optional
+      task: required
+      run: optional
diff --git a/src/schema/auxmodalities/stim.yaml b/src/schema/auxmodalities/stim.yaml
new file mode 100644
index 0000000000..c8698fd269
--- /dev/null
+++ b/src/schema/auxmodalities/stim.yaml
@@ -0,0 +1,18 @@
+---
+- datatypes:
+    - meg
+    - eeg
+    - ieeg
+    - func
+    - beh
+  suffixes:
+    - events
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    - matches: required
+    - sub: required
+      ses: optional
+      task: required
+      run: optional

From 98e5263a0cf5c1eb69a619631d2f2e9342cf923c Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Tue, 29 Sep 2020 14:43:38 -0400
Subject: [PATCH 10/16] Move aux modalities into main datatypes.

This shifts to a pure top-down approach for the moment.
---
 src/schema/auxmodalities/channels.yaml   | 15 -----
 src/schema/auxmodalities/electrodes.yaml | 14 -----
 src/schema/auxmodalities/events.yaml     | 18 ------
 src/schema/auxmodalities/headshape.yaml  | 13 -----
 src/schema/auxmodalities/markers.yaml    | 13 -----
 src/schema/auxmodalities/photo.yaml      | 13 -----
 src/schema/auxmodalities/physio.yaml     | 18 ------
 src/schema/auxmodalities/stim.yaml       | 18 ------
 src/schema/datatypes/eeg.yaml            | 67 +++++++++++++++++++++++
 src/schema/datatypes/ieeg.yaml           | 67 +++++++++++++++++++++++
 src/schema/datatypes/meg.yaml            | 70 +++++++++++++++++++++++-
 11 files changed, 203 insertions(+), 123 deletions(-)
 delete mode 100644 src/schema/auxmodalities/channels.yaml
 delete mode 100644 src/schema/auxmodalities/electrodes.yaml
 delete mode 100644 src/schema/auxmodalities/events.yaml
 delete mode 100644 src/schema/auxmodalities/headshape.yaml
 delete mode 100644 src/schema/auxmodalities/markers.yaml
 delete mode 100644 src/schema/auxmodalities/photo.yaml
 delete mode 100644 src/schema/auxmodalities/physio.yaml
 delete mode 100644 src/schema/auxmodalities/stim.yaml

diff --git a/src/schema/auxmodalities/channels.yaml b/src/schema/auxmodalities/channels.yaml
deleted file mode 100644
index a906208973..0000000000
--- a/src/schema/auxmodalities/channels.yaml
+++ /dev/null
@@ -1,15 +0,0 @@
----
-- datatypes:
-    - meg
-    - eeg
-    - ieeg
-  suffixes:
-    - channels
-  extensions:
-    - .json
-    - .tsv
-  entities:
-    sub: required
-    ses: optional
-    task: required
-    run: optional
diff --git a/src/schema/auxmodalities/electrodes.yaml b/src/schema/auxmodalities/electrodes.yaml
deleted file mode 100644
index b630ad5895..0000000000
--- a/src/schema/auxmodalities/electrodes.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
----
-- datatypes:
-    - eeg
-    - ieeg
-  suffixes:
-    - electrodes
-  extensions:
-    - .json
-    - .tsv
-  entities:
-    sub: required
-    ses: optional
-    acq: optional
-    space: optional
diff --git a/src/schema/auxmodalities/events.yaml b/src/schema/auxmodalities/events.yaml
deleted file mode 100644
index c8698fd269..0000000000
--- a/src/schema/auxmodalities/events.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
----
-- datatypes:
-    - meg
-    - eeg
-    - ieeg
-    - func
-    - beh
-  suffixes:
-    - events
-  extensions:
-    - .json
-    - .tsv
-  entities:
-    - matches: required
-    - sub: required
-      ses: optional
-      task: required
-      run: optional
diff --git a/src/schema/auxmodalities/headshape.yaml b/src/schema/auxmodalities/headshape.yaml
deleted file mode 100644
index 6fa607191a..0000000000
--- a/src/schema/auxmodalities/headshape.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
----
-- datatypes:
-    - meg
-  suffixes:
-    - headshape
-  extensions:
-    - .pos
-    - .txt
-  entities:
-    sub: required
-    ses: optional
-    acq: optional
-    space: optional
diff --git a/src/schema/auxmodalities/markers.yaml b/src/schema/auxmodalities/markers.yaml
deleted file mode 100644
index b8ead7bf93..0000000000
--- a/src/schema/auxmodalities/markers.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
----
-  datatypes:
-    - meg
-  suffixes:
-    - markers
-  extensions:
-    - .json
-  entities:
-    sub: required
-    ses: optional
-    task: optional
-    acq: optional
-    space: optional
diff --git a/src/schema/auxmodalities/photo.yaml b/src/schema/auxmodalities/photo.yaml
deleted file mode 100644
index e104d04aa9..0000000000
--- a/src/schema/auxmodalities/photo.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
----
-- datatypes:
-    - meg
-    - eeg
-    - ieeg
-  suffixes:
-    - photo
-  extensions:
-    - .jpg
-  entities:
-    sub: required
-    ses: optional
-    acq: optional
diff --git a/src/schema/auxmodalities/physio.yaml b/src/schema/auxmodalities/physio.yaml
deleted file mode 100644
index 015cb4ed1a..0000000000
--- a/src/schema/auxmodalities/physio.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
----
-- datatypes:
-    - meg
-    - eeg
-    - ieeg
-    - func
-    - beh
-  suffixes:
-    - physio
-  extensions:
-    - .json
-    - .tsv.gz
-  entities:
-    - matches: required
-    - sub: required
-      ses: optional
-      task: required
-      run: optional
diff --git a/src/schema/auxmodalities/stim.yaml b/src/schema/auxmodalities/stim.yaml
deleted file mode 100644
index c8698fd269..0000000000
--- a/src/schema/auxmodalities/stim.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
----
-- datatypes:
-    - meg
-    - eeg
-    - ieeg
-    - func
-    - beh
-  suffixes:
-    - events
-  extensions:
-    - .json
-    - .tsv
-  entities:
-    - matches: required
-    - sub: required
-      ses: optional
-      task: required
-      run: optional
diff --git a/src/schema/datatypes/eeg.yaml b/src/schema/datatypes/eeg.yaml
index f00ae44c1b..4e00507778 100644
--- a/src/schema/datatypes/eeg.yaml
+++ b/src/schema/datatypes/eeg.yaml
@@ -1,4 +1,5 @@
 ---
+# Main group
 - suffixes:
     - eeg
   extensions:
@@ -16,3 +17,69 @@
     task: required
     acq: optional
     run: optional
+# Group 2
+- suffixes:
+    - channels
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
+# Group 3
+- suffixes:
+    - electrodes
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+    run: optional
+# Group 4
+- suffixes:
+    - coordsystem
+  extensions:
+    - .json
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+# Group 5
+- suffixes:
+    - photo
+  extensions:
+    - .jpg
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+# Group 6
+- suffixes:
+    - events
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
+# Group 7
+- suffixes:
+    - physio
+    - stim
+  extensions:
+    - .json
+    - .tsv.gz
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
diff --git a/src/schema/datatypes/ieeg.yaml b/src/schema/datatypes/ieeg.yaml
index ff7e09314d..1032bbe460 100644
--- a/src/schema/datatypes/ieeg.yaml
+++ b/src/schema/datatypes/ieeg.yaml
@@ -17,3 +17,70 @@
     task: required
     acq: optional
     run: optional
+# Group 2
+- suffixes:
+    - channels
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
+# Group 3
+- suffixes:
+    - electrodes
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+    space: optional
+# Group 4
+- suffixes:
+    - coordsystem
+  extensions:
+    - .json
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+    space: optional
+# Group 5
+- suffixes:
+    - photo
+  extensions:
+    - .jpg
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+# Group 6
+- suffixes:
+    - events
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
+# Group 7
+- suffixes:
+    - physio
+    - stim
+  extensions:
+    - .json
+    - .tsv.gz
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
diff --git a/src/schema/datatypes/meg.yaml b/src/schema/datatypes/meg.yaml
index 33ce8d6a2e..93b875b603 100644
--- a/src/schema/datatypes/meg.yaml
+++ b/src/schema/datatypes/meg.yaml
@@ -1,5 +1,5 @@
 ---
-# First group
+# Main group
 - suffixes:
     - meg
   extensions:
@@ -22,3 +22,71 @@
     run: optional
     proc: optional
     split: optional
+# Group 2
+- suffixes:
+    - channels
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
+    proc: optional
+# Group 3
+- suffixes:
+    - coordsystem
+  extensions:
+    - .json
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+# Group 4
+- suffixes:
+    - photo
+  extensions:
+    - .jpg
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+# Group 5
+- suffixes:
+    - headshape
+  extensions:
+    - .pos
+    - .txt
+  entities:
+    sub: required
+    ses: optional
+    acq: optional
+# Group 6
+- suffixes:
+    - events
+  extensions:
+    - .json
+    - .tsv
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
+    proc: optional
+# Group 7
+- suffixes:
+    - stim
+    - physio
+  extensions:
+    - .json
+    - .tsv.gz
+  entities:
+    sub: required
+    ses: optional
+    task: required
+    acq: optional
+    run: optional
+    proc: optional

From d2860489ce3c21c2bdcd6c209886e64fb4a6f784 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Fri, 2 Oct 2020 18:31:21 -0400
Subject: [PATCH 11/16] Copy over terms from BIDS_Terms.

I used the jsonld version. Thanks to @nqueder.
---
 src/schema/terms2/Acknowledgements.yaml                       | 4 ++++
 src/schema/terms2/AcquisitionDuration.yaml                    | 4 ++++
 src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml     | 4 ++++
 .../terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml | 4 ++++
 src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml      | 4 ++++
 src/schema/terms2/AnatomicalLandmarkCoordinates.yaml          | 4 ++++
 src/schema/terms2/Angiography.yaml                            | 4 ++++
 src/schema/terms2/AssociatedEmptyRoom.yaml                    | 4 ++++
 src/schema/terms2/Authors.yaml                                | 4 ++++
 src/schema/terms2/BIDSVersion.yaml                            | 4 ++++
 src/schema/terms2/BOLD.yaml                                   | 4 ++++
 src/schema/terms2/CBV.yaml                                    | 4 ++++
 src/schema/terms2/CapManufacturer.yaml                        | 4 ++++
 src/schema/terms2/CapManufacturersModelName.yaml              | 4 ++++
 src/schema/terms2/CogAtlasID.yaml                             | 4 ++++
 src/schema/terms2/CogPOID.yaml                                | 4 ++++
 src/schema/terms2/CoilCombinationMethod.yaml                  | 4 ++++
 src/schema/terms2/Columns.yaml                                | 4 ++++
 src/schema/terms2/Combined PD-T2.yaml                         | 4 ++++
 src/schema/terms2/ContinuousHeadLocalization.yaml             | 4 ++++
 src/schema/terms2/DCOffsetCorrection.yaml                     | 4 ++++
 src/schema/terms2/DatasetDOI.yaml                             | 4 ++++
 src/schema/terms2/DelayAfterTrigger.yaml                      | 4 ++++
 src/schema/terms2/DelayTime.yaml                              | 4 ++++
 src/schema/terms2/Derivative.yaml                             | 4 ++++
 src/schema/terms2/DeviceSerialNumber.yaml                     | 4 ++++
 src/schema/terms2/DewarPosition.yaml                          | 4 ++++
 src/schema/terms2/DigitizedHeadPoints.yaml                    | 4 ++++
 src/schema/terms2/DigitizedHeadPointsCoordinateSystem.yaml    | 4 ++++
 .../DigitizedHeadPointsCoordinateSystemDescription.yaml       | 4 ++++
 src/schema/terms2/DigitizedHeadPointsCoordinateUnits.yaml     | 4 ++++
 src/schema/terms2/DigitizedLandmarks.yaml                     | 4 ++++
 src/schema/terms2/DwellTime.yaml                              | 4 ++++
 src/schema/terms2/ECGChannelCount.yaml                        | 4 ++++
 src/schema/terms2/ECOGChannelCount.yaml                       | 4 ++++
 src/schema/terms2/EEGChannelCount.yaml                        | 4 ++++
 src/schema/terms2/EEGCoordinateSystem.yaml                    | 4 ++++
 src/schema/terms2/EEGCoordinateSystemDescription.yaml         | 4 ++++
 src/schema/terms2/EEGCoordinateUnits.yaml                     | 4 ++++
 src/schema/terms2/EEGGround.yaml                              | 4 ++++
 src/schema/terms2/EEGPlacementScheme.yaml                     | 4 ++++
 src/schema/terms2/EEGReference.yaml                           | 4 ++++
 src/schema/terms2/EMGChannelCount.yaml                        | 4 ++++
 src/schema/terms2/EOGChannelCount.yaml                        | 4 ++++
 src/schema/terms2/EchoTime.yaml                               | 4 ++++
 src/schema/terms2/EffectiveEchoSpacing.yaml                   | 4 ++++
 src/schema/terms2/ElectricalStimulation.yaml                  | 4 ++++
 src/schema/terms2/ElectricalStimulationParameters.yaml        | 4 ++++
 src/schema/terms2/ElectrodeManufacturer.yaml                  | 4 ++++
 src/schema/terms2/ElectrodeManufacturersModelName.yaml        | 4 ++++
 src/schema/terms2/Electroencephalography.yaml                 | 4 ++++
 src/schema/terms2/EpochLength.yaml                            | 4 ++++
 src/schema/terms2/FLAIR.yaml                                  | 4 ++++
 src/schema/terms2/FLASH.yaml                                  | 4 ++++
 src/schema/terms2/FiducialsCoordinateSystem.yaml              | 4 ++++
 src/schema/terms2/FiducialsCoordinateSystemDescription.yaml   | 4 ++++
 src/schema/terms2/FiducialsCoordinateUnits.yaml               | 4 ++++
 src/schema/terms2/FiducialsCoordinates.yaml                   | 4 ++++
 src/schema/terms2/FiducialsDescription.yaml                   | 4 ++++
 src/schema/terms2/FlipAngle.yaml                              | 4 ++++
 src/schema/terms2/Funding.yaml                                | 4 ++++
 src/schema/terms2/GradientSetType.yaml                        | 4 ++++
 src/schema/terms2/HardcopyDeviceSoftwareVersion.yaml          | 4 ++++
 src/schema/terms2/HardwareFilters.yaml                        | 4 ++++
 src/schema/terms2/HeadCircumference.yaml                      | 4 ++++
 src/schema/terms2/HeadCoilCoordinateSystem.yaml               | 4 ++++
 src/schema/terms2/HeadCoilCoordinateSystemDescription.yaml    | 4 ++++
 src/schema/terms2/HeadCoilCoordinateUnits.yaml                | 4 ++++
 src/schema/terms2/HeadCoilCoordinates.yaml                    | 4 ++++
 src/schema/terms2/HeadCoilFrequency.yaml                      | 4 ++++
 src/schema/terms2/HowToAcknowledge.yaml                       | 4 ++++
 src/schema/terms2/Inplane T1.yaml                             | 4 ++++
 src/schema/terms2/Inplane T2.yaml                             | 4 ++++
 src/schema/terms2/InstitutionAddress.yaml                     | 4 ++++
 src/schema/terms2/InstitutionName.yaml                        | 4 ++++
 src/schema/terms2/InstitutionalDepartmentName.yaml            | 4 ++++
 src/schema/terms2/Instructions.yaml                           | 4 ++++
 src/schema/terms2/IntendedFor.yaml                            | 4 ++++
 src/schema/terms2/Intracranial Electroencephalography.yaml    | 4 ++++
 src/schema/terms2/InversionTime.yaml                          | 4 ++++
 src/schema/terms2/License.yaml                                | 4 ++++
 src/schema/terms2/MEGChannelCount.yaml                        | 4 ++++
 src/schema/terms2/MEGCoordinateSystem.yaml                    | 4 ++++
 src/schema/terms2/MEGCoordinateSystemDescription.yaml         | 4 ++++
 src/schema/terms2/MEGCoordinateUnits.yaml                     | 4 ++++
 src/schema/terms2/MEGREFChannelCount.yaml                     | 4 ++++
 src/schema/terms2/MRTransmitCoilSequence.yaml                 | 4 ++++
 src/schema/terms2/MagneticFieldStrength.yaml                  | 4 ++++
 src/schema/terms2/Magnetoencephalography.yaml                 | 4 ++++
 src/schema/terms2/Manufacturer.yaml                           | 4 ++++
 src/schema/terms2/ManufacturersModelName.yaml                 | 4 ++++
 src/schema/terms2/MatrixCoilMode.yaml                         | 4 ++++
 src/schema/terms2/MaxMovement.yaml                            | 4 ++++
 src/schema/terms2/MiscChannelCount.yaml                       | 4 ++++
 src/schema/terms2/MultibandAccelerationFactor.yaml            | 4 ++++
 src/schema/terms2/Name.yaml                                   | 4 ++++
 src/schema/terms2/NegativeContrast.yaml                       | 4 ++++
 src/schema/terms2/NonlinearGradientCorrection.yaml            | 4 ++++
 src/schema/terms2/NumberOfVolumesDiscardedByScanner.yaml      | 4 ++++
 src/schema/terms2/NumberOfVolumesDiscardedByUser.yaml         | 4 ++++
 src/schema/terms2/NumberShots.yaml                            | 4 ++++
 src/schema/terms2/ParallelAcquisitionTechnique.yaml           | 4 ++++
 src/schema/terms2/ParallelReductionFactorInPlane.yaml         | 4 ++++
 src/schema/terms2/PartialFourier.yaml                         | 4 ++++
 src/schema/terms2/PartialFourierDirection.yaml                | 4 ++++
 src/schema/terms2/Phase.yaml                                  | 4 ++++
 src/schema/terms2/PhaseEncodingDirection.yaml                 | 4 ++++
 src/schema/terms2/PowerLineFrequency.yaml                     | 4 ++++
 src/schema/terms2/Proton density map.yaml                     | 4 ++++
 src/schema/terms2/Proton density.yaml                         | 4 ++++
 src/schema/terms2/PulseSequenceDetails.yaml                   | 4 ++++
 src/schema/terms2/PulseSequenceType.yaml                      | 4 ++++
 src/schema/terms2/ReceiveCoilActiveElements.yaml              | 4 ++++
 src/schema/terms2/ReceiveCoilName.yaml                        | 4 ++++
 src/schema/terms2/RecordingDuration.yaml                      | 4 ++++
 src/schema/terms2/RecordingType.yaml                          | 4 ++++
 src/schema/terms2/ReferencesAndLinks.yaml                     | 4 ++++
 src/schema/terms2/RepetitionTime.yaml                         | 4 ++++
 src/schema/terms2/SEEGChannelCount.yaml                       | 4 ++++
 src/schema/terms2/SamplingFrequency.yaml                      | 4 ++++
 src/schema/terms2/ScanOptions.yaml                            | 4 ++++
 src/schema/terms2/ScanningSequence.yaml                       | 4 ++++
 src/schema/terms2/SequenceName.yaml                           | 4 ++++
 src/schema/terms2/SequenceVariant.yaml                        | 4 ++++
 src/schema/terms2/SliceEncodingDirection.yaml                 | 4 ++++
 src/schema/terms2/SliceTiming.yaml                            | 4 ++++
 src/schema/terms2/SoftwareFilters.yaml                        | 4 ++++
 src/schema/terms2/SoftwareVersions.yaml                       | 4 ++++
 src/schema/terms2/StartTime.yaml                              | 4 ++++
 src/schema/terms2/StationName.yaml                            | 4 ++++
 src/schema/terms2/SubjectArtefactDescription.yaml             | 4 ++++
 src/schema/terms2/T1 Rho map.yaml                             | 4 ++++
 src/schema/terms2/T1 map.yaml                                 | 4 ++++
 src/schema/terms2/T1 weighted.yaml                            | 4 ++++
 src/schema/terms2/T1w.yaml                                    | 4 ++++
 src/schema/terms2/T2 map.yaml                                 | 4 ++++
 src/schema/terms2/T2 weighted.yaml                            | 4 ++++
 src/schema/terms2/T2*.yaml                                    | 4 ++++
 src/schema/terms2/T2w.yaml                                    | 4 ++++
 src/schema/terms2/TaskDescription.yaml                        | 4 ++++
 src/schema/terms2/TaskName.yaml                               | 4 ++++
 src/schema/terms2/TotalReadoutTime.yaml                       | 4 ++++
 src/schema/terms2/TriggerChannelCount.yaml                    | 4 ++++
 src/schema/terms2/VolumeTiming.yaml                           | 4 ++++
 src/schema/terms2/dimension.yaml                              | 4 ++++
 src/schema/terms2/duration.yaml                               | 4 ++++
 src/schema/terms2/group.yaml                                  | 4 ++++
 src/schema/terms2/hemisphere.yaml                             | 4 ++++
 src/schema/terms2/high_cutoff.yaml                            | 4 ++++
 src/schema/terms2/iEEGCoordinateProcessingDescription.yaml    | 4 ++++
 src/schema/terms2/iEEGCoordinateProcessingReference.yaml      | 4 ++++
 src/schema/terms2/iEEGCoordinateSystem.yaml                   | 4 ++++
 src/schema/terms2/iEEGCoordinateSystemDescription.yaml        | 4 ++++
 src/schema/terms2/iEEGCoordinateUnits.yaml                    | 4 ++++
 src/schema/terms2/iEEGElectrodeGroups.yaml                    | 4 ++++
 src/schema/terms2/iEEGGround.yaml                             | 4 ++++
 src/schema/terms2/iEEGPlacementScheme.yaml                    | 4 ++++
 src/schema/terms2/iEEGReference.yaml                          | 4 ++++
 src/schema/terms2/impedance.yaml                              | 4 ++++
 src/schema/terms2/low_cutoff.yaml                             | 4 ++++
 src/schema/terms2/material.yaml                               | 4 ++++
 src/schema/terms2/notch.yaml                                  | 4 ++++
 src/schema/terms2/onset.yaml                                  | 4 ++++
 src/schema/terms2/reference.yaml                              | 4 ++++
 src/schema/terms2/respiratory.yaml                            | 4 ++++
 src/schema/terms2/response_time.yaml                          | 4 ++++
 src/schema/terms2/sample.yaml                                 | 4 ++++
 src/schema/terms2/sampling_frequency.yaml                     | 4 ++++
 src/schema/terms2/size.yaml                                   | 4 ++++
 src/schema/terms2/software_filters.yaml                       | 4 ++++
 src/schema/terms2/status.yaml                                 | 4 ++++
 src/schema/terms2/status_description.yaml                     | 4 ++++
 src/schema/terms2/stim_file.yaml                              | 4 ++++
 src/schema/terms2/trial_type.yaml                             | 4 ++++
 src/schema/terms2/type.yaml                                   | 4 ++++
 175 files changed, 700 insertions(+)
 create mode 100644 src/schema/terms2/Acknowledgements.yaml
 create mode 100644 src/schema/terms2/AcquisitionDuration.yaml
 create mode 100644 src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml
 create mode 100644 src/schema/terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml
 create mode 100644 src/schema/terms2/AnatomicalLandmarkCoordinates.yaml
 create mode 100644 src/schema/terms2/Angiography.yaml
 create mode 100644 src/schema/terms2/AssociatedEmptyRoom.yaml
 create mode 100644 src/schema/terms2/Authors.yaml
 create mode 100644 src/schema/terms2/BIDSVersion.yaml
 create mode 100644 src/schema/terms2/BOLD.yaml
 create mode 100644 src/schema/terms2/CBV.yaml
 create mode 100644 src/schema/terms2/CapManufacturer.yaml
 create mode 100644 src/schema/terms2/CapManufacturersModelName.yaml
 create mode 100644 src/schema/terms2/CogAtlasID.yaml
 create mode 100644 src/schema/terms2/CogPOID.yaml
 create mode 100644 src/schema/terms2/CoilCombinationMethod.yaml
 create mode 100644 src/schema/terms2/Columns.yaml
 create mode 100644 src/schema/terms2/Combined PD-T2.yaml
 create mode 100644 src/schema/terms2/ContinuousHeadLocalization.yaml
 create mode 100644 src/schema/terms2/DCOffsetCorrection.yaml
 create mode 100644 src/schema/terms2/DatasetDOI.yaml
 create mode 100644 src/schema/terms2/DelayAfterTrigger.yaml
 create mode 100644 src/schema/terms2/DelayTime.yaml
 create mode 100644 src/schema/terms2/Derivative.yaml
 create mode 100644 src/schema/terms2/DeviceSerialNumber.yaml
 create mode 100644 src/schema/terms2/DewarPosition.yaml
 create mode 100644 src/schema/terms2/DigitizedHeadPoints.yaml
 create mode 100644 src/schema/terms2/DigitizedHeadPointsCoordinateSystem.yaml
 create mode 100644 src/schema/terms2/DigitizedHeadPointsCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms2/DigitizedHeadPointsCoordinateUnits.yaml
 create mode 100644 src/schema/terms2/DigitizedLandmarks.yaml
 create mode 100644 src/schema/terms2/DwellTime.yaml
 create mode 100644 src/schema/terms2/ECGChannelCount.yaml
 create mode 100644 src/schema/terms2/ECOGChannelCount.yaml
 create mode 100644 src/schema/terms2/EEGChannelCount.yaml
 create mode 100644 src/schema/terms2/EEGCoordinateSystem.yaml
 create mode 100644 src/schema/terms2/EEGCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms2/EEGCoordinateUnits.yaml
 create mode 100644 src/schema/terms2/EEGGround.yaml
 create mode 100644 src/schema/terms2/EEGPlacementScheme.yaml
 create mode 100644 src/schema/terms2/EEGReference.yaml
 create mode 100644 src/schema/terms2/EMGChannelCount.yaml
 create mode 100644 src/schema/terms2/EOGChannelCount.yaml
 create mode 100644 src/schema/terms2/EchoTime.yaml
 create mode 100644 src/schema/terms2/EffectiveEchoSpacing.yaml
 create mode 100644 src/schema/terms2/ElectricalStimulation.yaml
 create mode 100644 src/schema/terms2/ElectricalStimulationParameters.yaml
 create mode 100644 src/schema/terms2/ElectrodeManufacturer.yaml
 create mode 100644 src/schema/terms2/ElectrodeManufacturersModelName.yaml
 create mode 100644 src/schema/terms2/Electroencephalography.yaml
 create mode 100644 src/schema/terms2/EpochLength.yaml
 create mode 100644 src/schema/terms2/FLAIR.yaml
 create mode 100644 src/schema/terms2/FLASH.yaml
 create mode 100644 src/schema/terms2/FiducialsCoordinateSystem.yaml
 create mode 100644 src/schema/terms2/FiducialsCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms2/FiducialsCoordinateUnits.yaml
 create mode 100644 src/schema/terms2/FiducialsCoordinates.yaml
 create mode 100644 src/schema/terms2/FiducialsDescription.yaml
 create mode 100644 src/schema/terms2/FlipAngle.yaml
 create mode 100644 src/schema/terms2/Funding.yaml
 create mode 100644 src/schema/terms2/GradientSetType.yaml
 create mode 100644 src/schema/terms2/HardcopyDeviceSoftwareVersion.yaml
 create mode 100644 src/schema/terms2/HardwareFilters.yaml
 create mode 100644 src/schema/terms2/HeadCircumference.yaml
 create mode 100644 src/schema/terms2/HeadCoilCoordinateSystem.yaml
 create mode 100644 src/schema/terms2/HeadCoilCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms2/HeadCoilCoordinateUnits.yaml
 create mode 100644 src/schema/terms2/HeadCoilCoordinates.yaml
 create mode 100644 src/schema/terms2/HeadCoilFrequency.yaml
 create mode 100644 src/schema/terms2/HowToAcknowledge.yaml
 create mode 100644 src/schema/terms2/Inplane T1.yaml
 create mode 100644 src/schema/terms2/Inplane T2.yaml
 create mode 100644 src/schema/terms2/InstitutionAddress.yaml
 create mode 100644 src/schema/terms2/InstitutionName.yaml
 create mode 100644 src/schema/terms2/InstitutionalDepartmentName.yaml
 create mode 100644 src/schema/terms2/Instructions.yaml
 create mode 100644 src/schema/terms2/IntendedFor.yaml
 create mode 100644 src/schema/terms2/Intracranial Electroencephalography.yaml
 create mode 100644 src/schema/terms2/InversionTime.yaml
 create mode 100644 src/schema/terms2/License.yaml
 create mode 100644 src/schema/terms2/MEGChannelCount.yaml
 create mode 100644 src/schema/terms2/MEGCoordinateSystem.yaml
 create mode 100644 src/schema/terms2/MEGCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms2/MEGCoordinateUnits.yaml
 create mode 100644 src/schema/terms2/MEGREFChannelCount.yaml
 create mode 100644 src/schema/terms2/MRTransmitCoilSequence.yaml
 create mode 100644 src/schema/terms2/MagneticFieldStrength.yaml
 create mode 100644 src/schema/terms2/Magnetoencephalography.yaml
 create mode 100644 src/schema/terms2/Manufacturer.yaml
 create mode 100644 src/schema/terms2/ManufacturersModelName.yaml
 create mode 100644 src/schema/terms2/MatrixCoilMode.yaml
 create mode 100644 src/schema/terms2/MaxMovement.yaml
 create mode 100644 src/schema/terms2/MiscChannelCount.yaml
 create mode 100644 src/schema/terms2/MultibandAccelerationFactor.yaml
 create mode 100644 src/schema/terms2/Name.yaml
 create mode 100644 src/schema/terms2/NegativeContrast.yaml
 create mode 100644 src/schema/terms2/NonlinearGradientCorrection.yaml
 create mode 100644 src/schema/terms2/NumberOfVolumesDiscardedByScanner.yaml
 create mode 100644 src/schema/terms2/NumberOfVolumesDiscardedByUser.yaml
 create mode 100644 src/schema/terms2/NumberShots.yaml
 create mode 100644 src/schema/terms2/ParallelAcquisitionTechnique.yaml
 create mode 100644 src/schema/terms2/ParallelReductionFactorInPlane.yaml
 create mode 100644 src/schema/terms2/PartialFourier.yaml
 create mode 100644 src/schema/terms2/PartialFourierDirection.yaml
 create mode 100644 src/schema/terms2/Phase.yaml
 create mode 100644 src/schema/terms2/PhaseEncodingDirection.yaml
 create mode 100644 src/schema/terms2/PowerLineFrequency.yaml
 create mode 100644 src/schema/terms2/Proton density map.yaml
 create mode 100644 src/schema/terms2/Proton density.yaml
 create mode 100644 src/schema/terms2/PulseSequenceDetails.yaml
 create mode 100644 src/schema/terms2/PulseSequenceType.yaml
 create mode 100644 src/schema/terms2/ReceiveCoilActiveElements.yaml
 create mode 100644 src/schema/terms2/ReceiveCoilName.yaml
 create mode 100644 src/schema/terms2/RecordingDuration.yaml
 create mode 100644 src/schema/terms2/RecordingType.yaml
 create mode 100644 src/schema/terms2/ReferencesAndLinks.yaml
 create mode 100644 src/schema/terms2/RepetitionTime.yaml
 create mode 100644 src/schema/terms2/SEEGChannelCount.yaml
 create mode 100644 src/schema/terms2/SamplingFrequency.yaml
 create mode 100644 src/schema/terms2/ScanOptions.yaml
 create mode 100644 src/schema/terms2/ScanningSequence.yaml
 create mode 100644 src/schema/terms2/SequenceName.yaml
 create mode 100644 src/schema/terms2/SequenceVariant.yaml
 create mode 100644 src/schema/terms2/SliceEncodingDirection.yaml
 create mode 100644 src/schema/terms2/SliceTiming.yaml
 create mode 100644 src/schema/terms2/SoftwareFilters.yaml
 create mode 100644 src/schema/terms2/SoftwareVersions.yaml
 create mode 100644 src/schema/terms2/StartTime.yaml
 create mode 100644 src/schema/terms2/StationName.yaml
 create mode 100644 src/schema/terms2/SubjectArtefactDescription.yaml
 create mode 100644 src/schema/terms2/T1 Rho map.yaml
 create mode 100644 src/schema/terms2/T1 map.yaml
 create mode 100644 src/schema/terms2/T1 weighted.yaml
 create mode 100644 src/schema/terms2/T1w.yaml
 create mode 100644 src/schema/terms2/T2 map.yaml
 create mode 100644 src/schema/terms2/T2 weighted.yaml
 create mode 100644 src/schema/terms2/T2*.yaml
 create mode 100644 src/schema/terms2/T2w.yaml
 create mode 100644 src/schema/terms2/TaskDescription.yaml
 create mode 100644 src/schema/terms2/TaskName.yaml
 create mode 100644 src/schema/terms2/TotalReadoutTime.yaml
 create mode 100644 src/schema/terms2/TriggerChannelCount.yaml
 create mode 100644 src/schema/terms2/VolumeTiming.yaml
 create mode 100644 src/schema/terms2/dimension.yaml
 create mode 100644 src/schema/terms2/duration.yaml
 create mode 100644 src/schema/terms2/group.yaml
 create mode 100644 src/schema/terms2/hemisphere.yaml
 create mode 100644 src/schema/terms2/high_cutoff.yaml
 create mode 100644 src/schema/terms2/iEEGCoordinateProcessingDescription.yaml
 create mode 100644 src/schema/terms2/iEEGCoordinateProcessingReference.yaml
 create mode 100644 src/schema/terms2/iEEGCoordinateSystem.yaml
 create mode 100644 src/schema/terms2/iEEGCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms2/iEEGCoordinateUnits.yaml
 create mode 100644 src/schema/terms2/iEEGElectrodeGroups.yaml
 create mode 100644 src/schema/terms2/iEEGGround.yaml
 create mode 100644 src/schema/terms2/iEEGPlacementScheme.yaml
 create mode 100644 src/schema/terms2/iEEGReference.yaml
 create mode 100644 src/schema/terms2/impedance.yaml
 create mode 100644 src/schema/terms2/low_cutoff.yaml
 create mode 100644 src/schema/terms2/material.yaml
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 create mode 100644 src/schema/terms2/onset.yaml
 create mode 100644 src/schema/terms2/reference.yaml
 create mode 100644 src/schema/terms2/respiratory.yaml
 create mode 100644 src/schema/terms2/response_time.yaml
 create mode 100644 src/schema/terms2/sample.yaml
 create mode 100644 src/schema/terms2/sampling_frequency.yaml
 create mode 100644 src/schema/terms2/size.yaml
 create mode 100644 src/schema/terms2/software_filters.yaml
 create mode 100644 src/schema/terms2/status.yaml
 create mode 100644 src/schema/terms2/status_description.yaml
 create mode 100644 src/schema/terms2/stim_file.yaml
 create mode 100644 src/schema/terms2/trial_type.yaml
 create mode 100644 src/schema/terms2/type.yaml

diff --git a/src/schema/terms2/Acknowledgements.yaml b/src/schema/terms2/Acknowledgements.yaml
new file mode 100644
index 0000000000..a5af3b36bf
--- /dev/null
+++ b/src/schema/terms2/Acknowledgements.yaml
@@ -0,0 +1,4 @@
+---
+name: Acknowledgements
+description: |
+  Text acknowledging contributions of individuals or institutions beyond those listed in Authors or Funding.
diff --git a/src/schema/terms2/AcquisitionDuration.yaml b/src/schema/terms2/AcquisitionDuration.yaml
new file mode 100644
index 0000000000..402a61b455
--- /dev/null
+++ b/src/schema/terms2/AcquisitionDuration.yaml
@@ -0,0 +1,4 @@
+---
+name: AcquisitionDuration
+description: |
+  RECOMMENDED. Duration (in seconds) of volume acquisition. Corresponds to DICOM Tag 0018,9073 Acquisition Duration. This field is REQUIRED for sequences that are described with the VolumeTiming field and that not have the SliceTiming field set to allowed for accurate calculation of acquisition time. This field is mutually exclusive with RepetitionTime.
diff --git a/src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml b/src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml
new file mode 100644
index 0000000000..8dfb2a7c3a
--- /dev/null
+++ b/src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: AnatomicalLandmarkCoordinateSystem
+description: |
+  OPTIONAL. Defines the coordinate system for the anatomical landmarks. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in AnatomicalLandmarkCoordinateSystemDescription.
diff --git a/src/schema/terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml b/src/schema/terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..390c34539f
--- /dev/null
+++ b/src/schema/terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: AnatomicalLandmarkCoordinateSystemDescription
+description: |
+  OPTIONAL. Freeform text description or link to document describing the Head Coil coordinate system system in detail.
diff --git a/src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml b/src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml
new file mode 100644
index 0000000000..29039cfec0
--- /dev/null
+++ b/src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: AnatomicalLandmarkCoordinateUnits
+description: |
+  OPTIONAL. Units of the coordinates of AnatomicalLandmarkCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/AnatomicalLandmarkCoordinates.yaml b/src/schema/terms2/AnatomicalLandmarkCoordinates.yaml
new file mode 100644
index 0000000000..dcb36d744f
--- /dev/null
+++ b/src/schema/terms2/AnatomicalLandmarkCoordinates.yaml
@@ -0,0 +1,4 @@
+---
+name: AnatomicalLandmarkCoordinates
+description: |
+  OPTIONAL. Key:value pairs of the labels and 3-D digitized locations of anatomical landmarks, interpreted following the AnatomicalLandmarkCoordinateSystem, e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}.
diff --git a/src/schema/terms2/Angiography.yaml b/src/schema/terms2/Angiography.yaml
new file mode 100644
index 0000000000..56b35b79de
--- /dev/null
+++ b/src/schema/terms2/Angiography.yaml
@@ -0,0 +1,4 @@
+---
+name: Angiography
+description: |
+  angio
diff --git a/src/schema/terms2/AssociatedEmptyRoom.yaml b/src/schema/terms2/AssociatedEmptyRoom.yaml
new file mode 100644
index 0000000000..164cc0fd2f
--- /dev/null
+++ b/src/schema/terms2/AssociatedEmptyRoom.yaml
@@ -0,0 +1,4 @@
+---
+name: AssociatedEmptyRoom
+description: |
+  RECOMMENDED. Relative path in BIDS folder structure to empty-room file associated with the subject's MEG recording. The path needs to use forward slashes instead of backward slashes (e.g. sub-emptyroom/ses-/meg/sub-emptyroom/ses-task-noise/run-meg.ds).
diff --git a/src/schema/terms2/Authors.yaml b/src/schema/terms2/Authors.yaml
new file mode 100644
index 0000000000..9e6ed84327
--- /dev/null
+++ b/src/schema/terms2/Authors.yaml
@@ -0,0 +1,4 @@
+---
+name: Authors
+description: |
+  OPTIONAL. List of individuals who contributed to the creation/curation of the dataset.
diff --git a/src/schema/terms2/BIDSVersion.yaml b/src/schema/terms2/BIDSVersion.yaml
new file mode 100644
index 0000000000..fe530a4f8f
--- /dev/null
+++ b/src/schema/terms2/BIDSVersion.yaml
@@ -0,0 +1,4 @@
+---
+name: BIDSVersion
+description: |
+  REQUIRED. The version of the BIDS standard that was used.
diff --git a/src/schema/terms2/BOLD.yaml b/src/schema/terms2/BOLD.yaml
new file mode 100644
index 0000000000..1f29be9c02
--- /dev/null
+++ b/src/schema/terms2/BOLD.yaml
@@ -0,0 +1,4 @@
+---
+name: BOLD
+description: |
+  bold
diff --git a/src/schema/terms2/CBV.yaml b/src/schema/terms2/CBV.yaml
new file mode 100644
index 0000000000..33a05c358f
--- /dev/null
+++ b/src/schema/terms2/CBV.yaml
@@ -0,0 +1,4 @@
+---
+name: CBV
+description: |
+  cbv
diff --git a/src/schema/terms2/CapManufacturer.yaml b/src/schema/terms2/CapManufacturer.yaml
new file mode 100644
index 0000000000..b8886efda4
--- /dev/null
+++ b/src/schema/terms2/CapManufacturer.yaml
@@ -0,0 +1,4 @@
+---
+name: CapManufacturer
+description: |
+  OPTIONAL. Manufacturer of the EEG cap (e.g. EasyCap)
diff --git a/src/schema/terms2/CapManufacturersModelName.yaml b/src/schema/terms2/CapManufacturersModelName.yaml
new file mode 100644
index 0000000000..c715d96158
--- /dev/null
+++ b/src/schema/terms2/CapManufacturersModelName.yaml
@@ -0,0 +1,4 @@
+---
+name: CapManufacturersModelName
+description: |
+  OPTIONAL. Manufacturer's designation of the EEG cap model (e.g., M10)
diff --git a/src/schema/terms2/CogAtlasID.yaml b/src/schema/terms2/CogAtlasID.yaml
new file mode 100644
index 0000000000..56c2617439
--- /dev/null
+++ b/src/schema/terms2/CogAtlasID.yaml
@@ -0,0 +1,4 @@
+---
+name: CogAtlasID
+description: |
+  RECOMMENDED. URL of the corresponding Cognitive Atlas Task term.
diff --git a/src/schema/terms2/CogPOID.yaml b/src/schema/terms2/CogPOID.yaml
new file mode 100644
index 0000000000..514c9ed101
--- /dev/null
+++ b/src/schema/terms2/CogPOID.yaml
@@ -0,0 +1,4 @@
+---
+name: CogPOID
+description: |
+  RECOMMENDED. URL of the corresponding CogPO term.
diff --git a/src/schema/terms2/CoilCombinationMethod.yaml b/src/schema/terms2/CoilCombinationMethod.yaml
new file mode 100644
index 0000000000..b00cc9f302
--- /dev/null
+++ b/src/schema/terms2/CoilCombinationMethod.yaml
@@ -0,0 +1,4 @@
+---
+name: CoilCombinationMethod
+description: |
+  RECOMMENDED. Almost all fMRI studies using phased-array coils use root-sum-of-squares (rSOS) combination, but other methods exist. The image reconstruction is changed by the coil combination method (as for the matrix coil mode above), so anything non-standard should be reported
diff --git a/src/schema/terms2/Columns.yaml b/src/schema/terms2/Columns.yaml
new file mode 100644
index 0000000000..5b3492ac18
--- /dev/null
+++ b/src/schema/terms2/Columns.yaml
@@ -0,0 +1,4 @@
+---
+name: Columns
+description: |
+  REQUIRED. Names of columns in file.
diff --git a/src/schema/terms2/Combined PD-T2.yaml b/src/schema/terms2/Combined PD-T2.yaml
new file mode 100644
index 0000000000..2b498ddfa3
--- /dev/null
+++ b/src/schema/terms2/Combined PD-T2.yaml	
@@ -0,0 +1,4 @@
+---
+name: Combined PD/T2
+description: |
+  PDT2
diff --git a/src/schema/terms2/ContinuousHeadLocalization.yaml b/src/schema/terms2/ContinuousHeadLocalization.yaml
new file mode 100644
index 0000000000..3f3393d210
--- /dev/null
+++ b/src/schema/terms2/ContinuousHeadLocalization.yaml
@@ -0,0 +1,4 @@
+---
+name: ContinuousHeadLocalization
+description: |
+  RECOMMENDED. Boolean (true or false) value indicating whether continuous head localisation was performed.
diff --git a/src/schema/terms2/DCOffsetCorrection.yaml b/src/schema/terms2/DCOffsetCorrection.yaml
new file mode 100644
index 0000000000..52e4fb6fad
--- /dev/null
+++ b/src/schema/terms2/DCOffsetCorrection.yaml
@@ -0,0 +1,4 @@
+---
+name: DCOffsetCorrection
+description: |
+  RECOMMENDED. A description of the method (if any) used to correct for a DC offset. If the method used was subtracting the mean value for each channel, use mean.
diff --git a/src/schema/terms2/DatasetDOI.yaml b/src/schema/terms2/DatasetDOI.yaml
new file mode 100644
index 0000000000..36669415d9
--- /dev/null
+++ b/src/schema/terms2/DatasetDOI.yaml
@@ -0,0 +1,4 @@
+---
+name: DatasetDOI
+description: |
+  OPTIONAL. The Document Object Identifier of the dataset (not the corresponding paper).
diff --git a/src/schema/terms2/DelayAfterTrigger.yaml b/src/schema/terms2/DelayAfterTrigger.yaml
new file mode 100644
index 0000000000..708ebe4e28
--- /dev/null
+++ b/src/schema/terms2/DelayAfterTrigger.yaml
@@ -0,0 +1,4 @@
+---
+name: DelayAfterTrigger
+description: |
+  RECOMMENDED. Duration (in seconds) from trigger delivery to scan onset. This delay is commonly caused by adjustments and loading times. This specification is entirely independent of NumberOfVolumesDiscardedByScanner or NumberOfVolumesDiscardedByUser, as the delay precedes the acquisition.
diff --git a/src/schema/terms2/DelayTime.yaml b/src/schema/terms2/DelayTime.yaml
new file mode 100644
index 0000000000..39da88e81f
--- /dev/null
+++ b/src/schema/terms2/DelayTime.yaml
@@ -0,0 +1,4 @@
+---
+name: DelayTime
+description: |
+  RECOMMENDED. User specified time (in seconds) to delay the acquisition of data for the following volume. If the field is not present it is assumed to be set to zero. Corresponds to Siemens CSA header field lDelayTimeInTR. This field is REQUIRED for sparse sequences using the RepetitionTime field that do not have the SliceTiming field set to allowed for accurate calculation of acquisition time. This field is mutually exclusive with VolumeTiming.
diff --git a/src/schema/terms2/Derivative.yaml b/src/schema/terms2/Derivative.yaml
new file mode 100644
index 0000000000..89ca074d9e
--- /dev/null
+++ b/src/schema/terms2/Derivative.yaml
@@ -0,0 +1,4 @@
+---
+name: Derivative
+description: |
+  Derivatives are outputs of common processing pipelines, capturing data and meta-data sufficient for a researcher to understand and (critically) reuse those outputs in subsequent processing. Standardizing derivatives is motivated by use cases where formalized machine-readable access to processed data enables higher level processing.
diff --git a/src/schema/terms2/DeviceSerialNumber.yaml b/src/schema/terms2/DeviceSerialNumber.yaml
new file mode 100644
index 0000000000..3084ccc9bf
--- /dev/null
+++ b/src/schema/terms2/DeviceSerialNumber.yaml
@@ -0,0 +1,4 @@
+---
+name: DeviceSerialNumber
+description: |
+  RECOMMENDED. The serial number of the equipment that produced the composite instances. Corresponds to DICOM Tag 0018, 1000 DeviceSerialNumber. A pseudonym can also be used to prevent the equipment from being identifiable, so long as each pseudonym is unique within the dataset
diff --git a/src/schema/terms2/DewarPosition.yaml b/src/schema/terms2/DewarPosition.yaml
new file mode 100644
index 0000000000..967c7c371a
--- /dev/null
+++ b/src/schema/terms2/DewarPosition.yaml
@@ -0,0 +1,4 @@
+---
+name: DewarPosition
+description: |
+  REQUIRED. Position of the dewar during the MEG scan: upright, supine or degrees of angle from vertical: for example on CTF systems, upright=15 degrees, supine = 90 degrees.
diff --git a/src/schema/terms2/DigitizedHeadPoints.yaml b/src/schema/terms2/DigitizedHeadPoints.yaml
new file mode 100644
index 0000000000..b415d5e1c0
--- /dev/null
+++ b/src/schema/terms2/DigitizedHeadPoints.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedHeadPoints
+description: |
+  OPTIONAL. Relative path to the file containing the locations of digitized head points collected during the session (e.g., sub-01_headshape.pos). RECOMMENDED for all MEG systems, especially for CTF and BTi/4D. For Elekta/Neuromag the head points will be stored in the fif file.
diff --git a/src/schema/terms2/DigitizedHeadPointsCoordinateSystem.yaml b/src/schema/terms2/DigitizedHeadPointsCoordinateSystem.yaml
new file mode 100644
index 0000000000..2c7db1fb72
--- /dev/null
+++ b/src/schema/terms2/DigitizedHeadPointsCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedHeadPointsCoordinateSystem
+description: |
+  OPTIONAL. Defines the coordinate system for the digitized head points. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in DigitizedHeadPointsCoordinateSystemDescription.
diff --git a/src/schema/terms2/DigitizedHeadPointsCoordinateSystemDescription.yaml b/src/schema/terms2/DigitizedHeadPointsCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..2d80e58c10
--- /dev/null
+++ b/src/schema/terms2/DigitizedHeadPointsCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedHeadPointsCoordinateSystemDescription
+description: |
+  OPTIONAL. Freeform text description or link to document describing the Digitized head Points coordinate system system in detail.
diff --git a/src/schema/terms2/DigitizedHeadPointsCoordinateUnits.yaml b/src/schema/terms2/DigitizedHeadPointsCoordinateUnits.yaml
new file mode 100644
index 0000000000..daa8deb1a1
--- /dev/null
+++ b/src/schema/terms2/DigitizedHeadPointsCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedHeadPointsCoordinateUnits
+description: |
+  OPTIONAL. Units of the coordinates of DigitizedHeadPointsCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/DigitizedLandmarks.yaml b/src/schema/terms2/DigitizedLandmarks.yaml
new file mode 100644
index 0000000000..470f710352
--- /dev/null
+++ b/src/schema/terms2/DigitizedLandmarks.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedLandmarks
+description: |
+  REQUIRED. Boolean (true or false) value indicating whether anatomical landmark points (i.e. fiducials) are contained within this recording.
diff --git a/src/schema/terms2/DwellTime.yaml b/src/schema/terms2/DwellTime.yaml
new file mode 100644
index 0000000000..b59963a6cf
--- /dev/null
+++ b/src/schema/terms2/DwellTime.yaml
@@ -0,0 +1,4 @@
+---
+name: DwellTime
+description: |
+  RECOMMENDED. Actual dwell time (in seconds) of the receiver per point in the readout direction, including any oversampling. For Siemens, this corresponds to DICOM field (0019,1018) (in ns). This value is necessary for the optional readout distortion correction of anatomicals in the HCP Pipelines. It also usefully provides a handle on the readout bandwidth, which isn’t captured in the other metadata tags. Not to be confused with EffectiveEchoSpacing, and the frequent mislabeling of echo spacing (which is spacing in the phase encoding direction) as dwell time (which is spacing in the readout direction).
diff --git a/src/schema/terms2/ECGChannelCount.yaml b/src/schema/terms2/ECGChannelCount.yaml
new file mode 100644
index 0000000000..4ad92027ad
--- /dev/null
+++ b/src/schema/terms2/ECGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: ECGChannelCount
+description: |
+  RECOMMENDED. Number of ECG channels.
diff --git a/src/schema/terms2/ECOGChannelCount.yaml b/src/schema/terms2/ECOGChannelCount.yaml
new file mode 100644
index 0000000000..fbc68977a8
--- /dev/null
+++ b/src/schema/terms2/ECOGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: ECOGChannelCount
+description: |
+  RECOMMENDED. Number of ECoG channels
diff --git a/src/schema/terms2/EEGChannelCount.yaml b/src/schema/terms2/EEGChannelCount.yaml
new file mode 100644
index 0000000000..855ef95012
--- /dev/null
+++ b/src/schema/terms2/EEGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGChannelCount
+description: |
+  RECOMMENDED. Number of EEG channels included in the recording (e.g., 128).
diff --git a/src/schema/terms2/EEGCoordinateSystem.yaml b/src/schema/terms2/EEGCoordinateSystem.yaml
new file mode 100644
index 0000000000..a99419076f
--- /dev/null
+++ b/src/schema/terms2/EEGCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGCoordinateSystem
+description: |
+  OPTIONAL. Describes how the coordinates of the EEG sensors are to be interpreted.
diff --git a/src/schema/terms2/EEGCoordinateSystemDescription.yaml b/src/schema/terms2/EEGCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..b553793c90
--- /dev/null
+++ b/src/schema/terms2/EEGCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGCoordinateSystemDescription
+description: |
+  OPTIONAL. Freeform text description or link to document describing the EEG coordinate system system in detail.
diff --git a/src/schema/terms2/EEGCoordinateUnits.yaml b/src/schema/terms2/EEGCoordinateUnits.yaml
new file mode 100644
index 0000000000..08cde6c5ba
--- /dev/null
+++ b/src/schema/terms2/EEGCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGCoordinateUnits
+description: |
+  OPTIONAL. Units of the coordinates of EEGCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/EEGGround.yaml b/src/schema/terms2/EEGGround.yaml
new file mode 100644
index 0000000000..6db8c56dba
--- /dev/null
+++ b/src/schema/terms2/EEGGround.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGGround
+description: |
+  RECOMMENDED. Description of the location of the ground electrode (e.g., placed on right mastoid (M2)).
diff --git a/src/schema/terms2/EEGPlacementScheme.yaml b/src/schema/terms2/EEGPlacementScheme.yaml
new file mode 100644
index 0000000000..293f15ac41
--- /dev/null
+++ b/src/schema/terms2/EEGPlacementScheme.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGPlacementScheme
+description: |
+  RECOMMENDED. Placement scheme of EEG electrodes. Either the name of a standardized placement system (e.g., 10-20) or a list of standardized electrode names (e.g., [Cz, Pz]).
diff --git a/src/schema/terms2/EEGReference.yaml b/src/schema/terms2/EEGReference.yaml
new file mode 100644
index 0000000000..c8700fae3b
--- /dev/null
+++ b/src/schema/terms2/EEGReference.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGReference
+description: |
+  OPTIONAL. Description of the type of EEG reference used (e.g., M1 for left mastoid, average, or longitudinal bipolar).
diff --git a/src/schema/terms2/EMGChannelCount.yaml b/src/schema/terms2/EMGChannelCount.yaml
new file mode 100644
index 0000000000..18d4ee86f7
--- /dev/null
+++ b/src/schema/terms2/EMGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: EMGChannelCount
+description: |
+  RECOMMENDED. Number of EMG channels.
diff --git a/src/schema/terms2/EOGChannelCount.yaml b/src/schema/terms2/EOGChannelCount.yaml
new file mode 100644
index 0000000000..69a3211fcd
--- /dev/null
+++ b/src/schema/terms2/EOGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: EOGChannelCount
+description: |
+  RECOMMENDED. Number of EOG channels.
diff --git a/src/schema/terms2/EchoTime.yaml b/src/schema/terms2/EchoTime.yaml
new file mode 100644
index 0000000000..2ebb1e9f87
--- /dev/null
+++ b/src/schema/terms2/EchoTime.yaml
@@ -0,0 +1,4 @@
+---
+name: EchoTime
+description: |
+  RECOMMENDED. The echo time (TE) for the acquisition, specified in seconds. This parameter is REQUIRED if corresponding fieldmap data is present or the data comes from a multi echo sequence. Corresponds to DICOM Tag 0018, 0081 Echo Time(please note that the DICOM term is in milliseconds not seconds).
diff --git a/src/schema/terms2/EffectiveEchoSpacing.yaml b/src/schema/terms2/EffectiveEchoSpacing.yaml
new file mode 100644
index 0000000000..83e6124d65
--- /dev/null
+++ b/src/schema/terms2/EffectiveEchoSpacing.yaml
@@ -0,0 +1,4 @@
+---
+name: EffectiveEchoSpacing
+description: |
+  RECOMMENDED. The effective sampling interval, specified in seconds, between lines in the phase-encoding direction, defined based on the size of the reconstructed image in the phase direction. It is frequently, but incorrectly, referred to as dwell time (see DwellTime parameter below for actual dwell time). It is required for unwarping distortions using field maps. Note that beyond just in-plane acceleration, a variety of other manipulations to the phase encoding need to be accounted for properly, including partial fourier, phase oversampling, phase resolution, phase field-of-view and interpolation.2This parameter is REQUIRED if corresponding fieldmap data is present.
diff --git a/src/schema/terms2/ElectricalStimulation.yaml b/src/schema/terms2/ElectricalStimulation.yaml
new file mode 100644
index 0000000000..67f39b9426
--- /dev/null
+++ b/src/schema/terms2/ElectricalStimulation.yaml
@@ -0,0 +1,4 @@
+---
+name: ElectricalStimulation
+description: |
+  OPTIONAL. Boolean field to specify if electrical stimulation was done during the recording (options are true or false). Parameters for event-like stimulation should be specified in the events.tsv file (see example below).
diff --git a/src/schema/terms2/ElectricalStimulationParameters.yaml b/src/schema/terms2/ElectricalStimulationParameters.yaml
new file mode 100644
index 0000000000..9ef19bef68
--- /dev/null
+++ b/src/schema/terms2/ElectricalStimulationParameters.yaml
@@ -0,0 +1,4 @@
+---
+name: ElectricalStimulationParameters
+description: |
+  OPTIONAL. Free form description of stimulation parameters, such as frequency, shape etc. Specific onsets can be specified in the events.tsv file. Specific shapes can be described here in freeform text.
diff --git a/src/schema/terms2/ElectrodeManufacturer.yaml b/src/schema/terms2/ElectrodeManufacturer.yaml
new file mode 100644
index 0000000000..dec0176ffe
--- /dev/null
+++ b/src/schema/terms2/ElectrodeManufacturer.yaml
@@ -0,0 +1,4 @@
+---
+name: ElectrodeManufacturer
+description: |
+  RECOMMENDED. can be used if all electrodes are of the same manufacturer (e.g., AD-TECH, DIXI). If electrodes of different manufacturers are used, please use the corresponding table in the _electrodes.tsv file.
diff --git a/src/schema/terms2/ElectrodeManufacturersModelName.yaml b/src/schema/terms2/ElectrodeManufacturersModelName.yaml
new file mode 100644
index 0000000000..b0cefac8a6
--- /dev/null
+++ b/src/schema/terms2/ElectrodeManufacturersModelName.yaml
@@ -0,0 +1,4 @@
+---
+name: ElectrodeManufacturersModelName
+description: |
+  RECOMMENDED. If different electrode types are used, please use the corresponding table in the electrodes.tsv file.
diff --git a/src/schema/terms2/Electroencephalography.yaml b/src/schema/terms2/Electroencephalography.yaml
new file mode 100644
index 0000000000..97a52119e7
--- /dev/null
+++ b/src/schema/terms2/Electroencephalography.yaml
@@ -0,0 +1,4 @@
+---
+name: Electroencephalography
+description: |
+  An extracellular electrophysiology assay where electrodes are mounted outside the brain (either on the surface of the scalp on onto the brain surface itself during surgery) to measure the electrical field over the external surface.
diff --git a/src/schema/terms2/EpochLength.yaml b/src/schema/terms2/EpochLength.yaml
new file mode 100644
index 0000000000..ee51244cf2
--- /dev/null
+++ b/src/schema/terms2/EpochLength.yaml
@@ -0,0 +1,4 @@
+---
+name: EpochLength
+description: |
+  RECOMMENDED. Duration of individual epochs in seconds (e.g. 1) in case of epoched data
diff --git a/src/schema/terms2/FLAIR.yaml b/src/schema/terms2/FLAIR.yaml
new file mode 100644
index 0000000000..2d2974cd35
--- /dev/null
+++ b/src/schema/terms2/FLAIR.yaml
@@ -0,0 +1,4 @@
+---
+name: FLAIR
+description: |
+  FLAIR
diff --git a/src/schema/terms2/FLASH.yaml b/src/schema/terms2/FLASH.yaml
new file mode 100644
index 0000000000..06a92adaa4
--- /dev/null
+++ b/src/schema/terms2/FLASH.yaml
@@ -0,0 +1,4 @@
+---
+name: FLASH
+description: |
+  FLASH
diff --git a/src/schema/terms2/FiducialsCoordinateSystem.yaml b/src/schema/terms2/FiducialsCoordinateSystem.yaml
new file mode 100644
index 0000000000..38afb1151c
--- /dev/null
+++ b/src/schema/terms2/FiducialsCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsCoordinateSystem
+description: |
+  RECOMMENDED. Refers to the coordinate space to which the landmarks positions are to be interpreted - preferably the same as the EEGCoordinateSystem.
diff --git a/src/schema/terms2/FiducialsCoordinateSystemDescription.yaml b/src/schema/terms2/FiducialsCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..00147144b2
--- /dev/null
+++ b/src/schema/terms2/FiducialsCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsCoordinateSystemDescription
+description: |
+  RECOMMENDED. Free-form text description of the coordinate system. May also include a link to a documentation page or paper describing the system in greater detail.
diff --git a/src/schema/terms2/FiducialsCoordinateUnits.yaml b/src/schema/terms2/FiducialsCoordinateUnits.yaml
new file mode 100644
index 0000000000..c35525a982
--- /dev/null
+++ b/src/schema/terms2/FiducialsCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsCoordinateUnits
+description: |
+  RECOMMENDED. Units in which the coordinates that are listed in the field AnatomicalLandmarkCoordinateSystem are represented (e.g., mm, cm).
diff --git a/src/schema/terms2/FiducialsCoordinates.yaml b/src/schema/terms2/FiducialsCoordinates.yaml
new file mode 100644
index 0000000000..1f2b351532
--- /dev/null
+++ b/src/schema/terms2/FiducialsCoordinates.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsCoordinates
+description: |
+  RECOMMENDED. Key:value pairs of the labels and 3-D digitized position of anatomical landmarks, interpreted following the FiducialsCoordinateSystem (e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}).
diff --git a/src/schema/terms2/FiducialsDescription.yaml b/src/schema/terms2/FiducialsDescription.yaml
new file mode 100644
index 0000000000..2fed0e1dad
--- /dev/null
+++ b/src/schema/terms2/FiducialsDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsDescription
+description: |
+  OPTIONAL. A freeform text field documenting the anatomical landmarks that were used and how the head localization coils were placed relative to these. This field can describe, for instance, whether the true anatomical locations of the left and right pre-auricular points were used and digitized, or rather whether they were defined as the intersection between the tragus and the helix (the entry of the ear canal), or any other anatomical description of selected points in the vicinity of the ears.
diff --git a/src/schema/terms2/FlipAngle.yaml b/src/schema/terms2/FlipAngle.yaml
new file mode 100644
index 0000000000..0a31c38a71
--- /dev/null
+++ b/src/schema/terms2/FlipAngle.yaml
@@ -0,0 +1,4 @@
+---
+name: FlipAngle
+description: |
+  RECOMMENDED. Flip angle for the acquisition, specified in degrees. Corresponds to: DICOM Tag 0018, 1314 Flip Angle.
diff --git a/src/schema/terms2/Funding.yaml b/src/schema/terms2/Funding.yaml
new file mode 100644
index 0000000000..d5a4d27925
--- /dev/null
+++ b/src/schema/terms2/Funding.yaml
@@ -0,0 +1,4 @@
+---
+name: Funding
+description: |
+  OPTIONAL. List of sources of funding (grant numbers)
diff --git a/src/schema/terms2/GradientSetType.yaml b/src/schema/terms2/GradientSetType.yaml
new file mode 100644
index 0000000000..6948c65054
--- /dev/null
+++ b/src/schema/terms2/GradientSetType.yaml
@@ -0,0 +1,4 @@
+---
+name: GradientSetType
+description: |
+  RECOMMENDED. It should be possible to infer the gradient coil from the scanner model. If not, e.g. because of a custom upgrade or use of a gradient insert set, then the specifications of the actual gradient coil should be reported independently
diff --git a/src/schema/terms2/HardcopyDeviceSoftwareVersion.yaml b/src/schema/terms2/HardcopyDeviceSoftwareVersion.yaml
new file mode 100644
index 0000000000..f35a57a959
--- /dev/null
+++ b/src/schema/terms2/HardcopyDeviceSoftwareVersion.yaml
@@ -0,0 +1,4 @@
+---
+name: HardcopyDeviceSoftwareVersion
+description: |
+  (Deprecated) Manufacturer’s designation of the software of the device that created this Hardcopy Image (the printer). Corresponds to DICOM Tag 0018, 101A Hardcopy Device Software Version
diff --git a/src/schema/terms2/HardwareFilters.yaml b/src/schema/terms2/HardwareFilters.yaml
new file mode 100644
index 0000000000..e975ed2feb
--- /dev/null
+++ b/src/schema/terms2/HardwareFilters.yaml
@@ -0,0 +1,4 @@
+---
+name: HardwareFilters
+description: |
+  RECOMMENDED. List of temporal hardware filters applied. Ideally key:value pairs of pre-applied hardware filters and their parameter values: e.g., {HardwareFilters: {Highpass RC filter: {Half amplitude cutoff (Hz): 0.0159, Roll-off: 6dB/Octave}}}. Write n/a if no hardware filters applied.
diff --git a/src/schema/terms2/HeadCircumference.yaml b/src/schema/terms2/HeadCircumference.yaml
new file mode 100644
index 0000000000..c55d302bbc
--- /dev/null
+++ b/src/schema/terms2/HeadCircumference.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCircumference
+description: |
+  RECOMMENDED. Circumference of the participants head, expressed in cm (e.g., 58).
diff --git a/src/schema/terms2/HeadCoilCoordinateSystem.yaml b/src/schema/terms2/HeadCoilCoordinateSystem.yaml
new file mode 100644
index 0000000000..d5ebaa6be0
--- /dev/null
+++ b/src/schema/terms2/HeadCoilCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilCoordinateSystem
+description: |
+  OPTIONAL. Defines the coordinate system for the coils. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in HeadCoilCoordinateSystemDescription.
diff --git a/src/schema/terms2/HeadCoilCoordinateSystemDescription.yaml b/src/schema/terms2/HeadCoilCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..7cdb11207b
--- /dev/null
+++ b/src/schema/terms2/HeadCoilCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilCoordinateSystemDescription
+description: |
+  OPTIONAL. Freeform text description or link to document describing the Head Coil coordinate system system in detail.
diff --git a/src/schema/terms2/HeadCoilCoordinateUnits.yaml b/src/schema/terms2/HeadCoilCoordinateUnits.yaml
new file mode 100644
index 0000000000..7cd8c8acc4
--- /dev/null
+++ b/src/schema/terms2/HeadCoilCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilCoordinateUnits
+description: |
+  OPTIONAL. Units of the coordinates of HeadCoilCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/HeadCoilCoordinates.yaml b/src/schema/terms2/HeadCoilCoordinates.yaml
new file mode 100644
index 0000000000..d09259bf5f
--- /dev/null
+++ b/src/schema/terms2/HeadCoilCoordinates.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilCoordinates
+description: |
+  OPTIONAL. Key:value pairs describing head localization coil labels and their coordinates, interpreted following the HeadCoilCoordinateSystem, e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}. Note that coils are not always placed at locations that have a known anatomical name (e.g. for Elekta, Yokogawa systems); in that case generic labels can be used (e.g. {coil1: [12.2,21.3,12.3], coil2: [6.7,12.3,8.6], coil3: [21.9,11.0,8.1]} ).
diff --git a/src/schema/terms2/HeadCoilFrequency.yaml b/src/schema/terms2/HeadCoilFrequency.yaml
new file mode 100644
index 0000000000..57a117e521
--- /dev/null
+++ b/src/schema/terms2/HeadCoilFrequency.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilFrequency
+description: |
+  RECOMMENDED. List of frequencies (in Hz) used by the head localisation coils (HLC in CTF systems, HPI in Elekta, COH in BTi/4D) that track the subject’s head position in the MEG helmet (e.g. [293, 307, 314, 321])
diff --git a/src/schema/terms2/HowToAcknowledge.yaml b/src/schema/terms2/HowToAcknowledge.yaml
new file mode 100644
index 0000000000..8fe30ba6cf
--- /dev/null
+++ b/src/schema/terms2/HowToAcknowledge.yaml
@@ -0,0 +1,4 @@
+---
+name: HowToAcknowledge
+description: |
+  OPTIONAL. Instructions how researchers using this dataset should acknowledge the original authors. This field can also be used to define a publication that should be cited in publications that use the dataset.
diff --git a/src/schema/terms2/Inplane T1.yaml b/src/schema/terms2/Inplane T1.yaml
new file mode 100644
index 0000000000..0e6019cec2
--- /dev/null
+++ b/src/schema/terms2/Inplane T1.yaml	
@@ -0,0 +1,4 @@
+---
+name: Inplane T1
+description: |
+  T1-weighted anatomical image matched to functional acquisition
diff --git a/src/schema/terms2/Inplane T2.yaml b/src/schema/terms2/Inplane T2.yaml
new file mode 100644
index 0000000000..45d7abbd48
--- /dev/null
+++ b/src/schema/terms2/Inplane T2.yaml	
@@ -0,0 +1,4 @@
+---
+name: Inplane T2
+description: |
+  T2-weighted anatomical image matched to functional acquisition
diff --git a/src/schema/terms2/InstitutionAddress.yaml b/src/schema/terms2/InstitutionAddress.yaml
new file mode 100644
index 0000000000..5150ade679
--- /dev/null
+++ b/src/schema/terms2/InstitutionAddress.yaml
@@ -0,0 +1,4 @@
+---
+name: InstitutionAddress
+description: |
+  RECOMMENDED. The address of the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 0081 InstitutionAddress.
diff --git a/src/schema/terms2/InstitutionName.yaml b/src/schema/terms2/InstitutionName.yaml
new file mode 100644
index 0000000000..363ac92bca
--- /dev/null
+++ b/src/schema/terms2/InstitutionName.yaml
@@ -0,0 +1,4 @@
+---
+name: InstitutionName
+description: |
+  RECOMMENDED. The name of the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 0080 InstitutionName.
diff --git a/src/schema/terms2/InstitutionalDepartmentName.yaml b/src/schema/terms2/InstitutionalDepartmentName.yaml
new file mode 100644
index 0000000000..6df30e0b84
--- /dev/null
+++ b/src/schema/terms2/InstitutionalDepartmentName.yaml
@@ -0,0 +1,4 @@
+---
+name: InstitutionalDepartmentName
+description: |
+  RECOMMENDED. The department in the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 1040 Institutional Department Name.
diff --git a/src/schema/terms2/Instructions.yaml b/src/schema/terms2/Instructions.yaml
new file mode 100644
index 0000000000..ab22a1e6e9
--- /dev/null
+++ b/src/schema/terms2/Instructions.yaml
@@ -0,0 +1,4 @@
+---
+name: Instructions
+description: |
+  RECOMMENDED. Text of the instructions given to participants before the scan. This is especially important in context of resting state fMRI and distinguishing between eyes open and eyes closed paradigms.
diff --git a/src/schema/terms2/IntendedFor.yaml b/src/schema/terms2/IntendedFor.yaml
new file mode 100644
index 0000000000..8e0efd1192
--- /dev/null
+++ b/src/schema/terms2/IntendedFor.yaml
@@ -0,0 +1,4 @@
+---
+name: IntendedFor
+description: |
+  OPTIONAL. Path or list of path relative to the subject subfolder pointing to the structural MRI, possibly of different types if a list is specified, to be used with the MEG recording. The path(s) need(s) to use forward slashes instead of backward slashes (e.g. ses-/anat/sub-01_T1w.nii.gz).
diff --git a/src/schema/terms2/Intracranial Electroencephalography.yaml b/src/schema/terms2/Intracranial Electroencephalography.yaml
new file mode 100644
index 0000000000..cfb8d8e7da
--- /dev/null
+++ b/src/schema/terms2/Intracranial Electroencephalography.yaml	
@@ -0,0 +1,4 @@
+---
+name: Intracranial Electroencephalography
+description: |
+  
diff --git a/src/schema/terms2/InversionTime.yaml b/src/schema/terms2/InversionTime.yaml
new file mode 100644
index 0000000000..91977a5adf
--- /dev/null
+++ b/src/schema/terms2/InversionTime.yaml
@@ -0,0 +1,4 @@
+---
+name: InversionTime
+description: |
+  RECOMMENDED. The inversion time (TI) for the acquisition, specified in seconds. Inversion time is the time after the middle of inverting RF pulse to middle of excitation pulse to detect the amount of longitudinal magnetization. Corresponds to DICOM Tag 0018, 0082 Inversion Time (please note that the DICOM term is in milliseconds not seconds).
diff --git a/src/schema/terms2/License.yaml b/src/schema/terms2/License.yaml
new file mode 100644
index 0000000000..ac9f72b0cc
--- /dev/null
+++ b/src/schema/terms2/License.yaml
@@ -0,0 +1,4 @@
+---
+name: License
+description: |
+  RECOMMENDED. What license is this dataset distributed under? The use of license name abbreviations is suggested for specifying a license. A list of common licenses with suggested abbreviations can be found in Appendix II.
diff --git a/src/schema/terms2/MEGChannelCount.yaml b/src/schema/terms2/MEGChannelCount.yaml
new file mode 100644
index 0000000000..c2e6635552
--- /dev/null
+++ b/src/schema/terms2/MEGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGChannelCount
+description: |
+  RECOMMENDED. Number of MEG channels (e.g. 275)
diff --git a/src/schema/terms2/MEGCoordinateSystem.yaml b/src/schema/terms2/MEGCoordinateSystem.yaml
new file mode 100644
index 0000000000..63ef731527
--- /dev/null
+++ b/src/schema/terms2/MEGCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGCoordinateSystem
+description: |
+  REQUIRED. Defines the coordinate system for the MEG sensors. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in [MEGCoordinateSystemDescription].
diff --git a/src/schema/terms2/MEGCoordinateSystemDescription.yaml b/src/schema/terms2/MEGCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..dcbcbe5133
--- /dev/null
+++ b/src/schema/terms2/MEGCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGCoordinateSystemDescription
+description: |
+  OPTIONAL. Freeform text description or link to document describing the MEG coordinate system system in detail.
diff --git a/src/schema/terms2/MEGCoordinateUnits.yaml b/src/schema/terms2/MEGCoordinateUnits.yaml
new file mode 100644
index 0000000000..014f27d33d
--- /dev/null
+++ b/src/schema/terms2/MEGCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGCoordinateUnits
+description: |
+  REQUIRED. Units of the coordinates of MEGCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/MEGREFChannelCount.yaml b/src/schema/terms2/MEGREFChannelCount.yaml
new file mode 100644
index 0000000000..29f5dd93fa
--- /dev/null
+++ b/src/schema/terms2/MEGREFChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGREFChannelCount
+description: |
+  RECOMMENDED. Number of MEG reference channels (e.g. 23). For systems without such channels (e.g. Neuromag Vectorview), MEGREFChannelCount=0
diff --git a/src/schema/terms2/MRTransmitCoilSequence.yaml b/src/schema/terms2/MRTransmitCoilSequence.yaml
new file mode 100644
index 0000000000..f443af45df
--- /dev/null
+++ b/src/schema/terms2/MRTransmitCoilSequence.yaml
@@ -0,0 +1,4 @@
+---
+name: MRTransmitCoilSequence
+description: |
+  RECOMMENDED. This is a relevant field if a non-standard transmit coil is used. Corresponds to DICOM Tag 0018, 9049 MR Transmit Coil Sequence
diff --git a/src/schema/terms2/MagneticFieldStrength.yaml b/src/schema/terms2/MagneticFieldStrength.yaml
new file mode 100644
index 0000000000..f90d13a79b
--- /dev/null
+++ b/src/schema/terms2/MagneticFieldStrength.yaml
@@ -0,0 +1,4 @@
+---
+name: MagneticFieldStrength
+description: |
+  RECOMMENDED. Nominal field strength of MR magnet in Tesla. Corresponds to DICOM Tag 0018,0087 Magnetic Field Strength
diff --git a/src/schema/terms2/Magnetoencephalography.yaml b/src/schema/terms2/Magnetoencephalography.yaml
new file mode 100644
index 0000000000..48c7bdbf6d
--- /dev/null
+++ b/src/schema/terms2/Magnetoencephalography.yaml
@@ -0,0 +1,4 @@
+---
+name: Magnetoencephalography
+description: |
+  
diff --git a/src/schema/terms2/Manufacturer.yaml b/src/schema/terms2/Manufacturer.yaml
new file mode 100644
index 0000000000..2a9bfdd255
--- /dev/null
+++ b/src/schema/terms2/Manufacturer.yaml
@@ -0,0 +1,4 @@
+---
+name: Manufacturer
+description: |
+  RECOMMENDED. Manufacturer of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 0070 Manufacturer
diff --git a/src/schema/terms2/ManufacturersModelName.yaml b/src/schema/terms2/ManufacturersModelName.yaml
new file mode 100644
index 0000000000..002be2185d
--- /dev/null
+++ b/src/schema/terms2/ManufacturersModelName.yaml
@@ -0,0 +1,4 @@
+---
+name: ManufacturersModelName
+description: |
+  RECOMMENDED. Manufacturer's model name of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 1090 Manufacturers Model Name
diff --git a/src/schema/terms2/MatrixCoilMode.yaml b/src/schema/terms2/MatrixCoilMode.yaml
new file mode 100644
index 0000000000..28b8d63f78
--- /dev/null
+++ b/src/schema/terms2/MatrixCoilMode.yaml
@@ -0,0 +1,4 @@
+---
+name: MatrixCoilMode
+description: |
+  RECOMMENDED. (If used) A method for reducing the number of independent channels by combining in analog the signals from multiple coil elements. There are typically different default modes when using un-accelerated or accelerated (e.g. GRAPPA, SENSE) imaging
diff --git a/src/schema/terms2/MaxMovement.yaml b/src/schema/terms2/MaxMovement.yaml
new file mode 100644
index 0000000000..23f3ae8fc1
--- /dev/null
+++ b/src/schema/terms2/MaxMovement.yaml
@@ -0,0 +1,4 @@
+---
+name: MaxMovement
+description: |
+  RECOMMENDED. Maximum head movement (in mm) detected during the recording, as measured by the head localisation coils (e.g., 4.8)
diff --git a/src/schema/terms2/MiscChannelCount.yaml b/src/schema/terms2/MiscChannelCount.yaml
new file mode 100644
index 0000000000..90bebad212
--- /dev/null
+++ b/src/schema/terms2/MiscChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: MiscChannelCount
+description: |
+  RECOMMENDED. Number of miscellaneous analog channels for auxiliary signals.
diff --git a/src/schema/terms2/MultibandAccelerationFactor.yaml b/src/schema/terms2/MultibandAccelerationFactor.yaml
new file mode 100644
index 0000000000..633ce35bd3
--- /dev/null
+++ b/src/schema/terms2/MultibandAccelerationFactor.yaml
@@ -0,0 +1,4 @@
+---
+name: MultibandAccelerationFactor
+description: |
+  RECOMMENDED. The multiband factor, for multiband acquisitions.
diff --git a/src/schema/terms2/Name.yaml b/src/schema/terms2/Name.yaml
new file mode 100644
index 0000000000..c7a5f5a8c3
--- /dev/null
+++ b/src/schema/terms2/Name.yaml
@@ -0,0 +1,4 @@
+---
+name: Name
+description: |
+  REQUIRED. Name of the dataset.
diff --git a/src/schema/terms2/NegativeContrast.yaml b/src/schema/terms2/NegativeContrast.yaml
new file mode 100644
index 0000000000..4aacc12e51
--- /dev/null
+++ b/src/schema/terms2/NegativeContrast.yaml
@@ -0,0 +1,4 @@
+---
+name: NegativeContrast
+description: |
+  OPTIONAL. Boolean (true or false) value specifying whether increasing voxel intensity (within sample voxels) denotes a decreased value with respect to the contrast suffix. This is commonly the case when Cerebral Blood Volume is estimated via usage of a contrast agent in conjunction with a T2* weighted acquisition protocol.
diff --git a/src/schema/terms2/NonlinearGradientCorrection.yaml b/src/schema/terms2/NonlinearGradientCorrection.yaml
new file mode 100644
index 0000000000..5da8975300
--- /dev/null
+++ b/src/schema/terms2/NonlinearGradientCorrection.yaml
@@ -0,0 +1,4 @@
+---
+name: NonlinearGradientCorrection
+description: |
+  RECOMMENDED. Boolean stating if the image saved has been corrected for gradient nonlinearities by the scanner sequence.
diff --git a/src/schema/terms2/NumberOfVolumesDiscardedByScanner.yaml b/src/schema/terms2/NumberOfVolumesDiscardedByScanner.yaml
new file mode 100644
index 0000000000..895b4d4521
--- /dev/null
+++ b/src/schema/terms2/NumberOfVolumesDiscardedByScanner.yaml
@@ -0,0 +1,4 @@
+---
+name: NumberOfVolumesDiscardedByScanner
+description: |
+  RECOMMENDED. Number of volumes (dummy scans) discarded by the scanner (as opposed to those discarded by the user post hoc) before saving the imaging file. For example, a sequence that automatically discards the first 4 volumes before saving would have this field as 4. A sequence that doesn't discard dummy scans would have this set to 0. Please note that the onsets recorded in the event.tsv file should always refer to the beginning of the acquisition of the first volume in the corresponding imaging file - independent of the value of NumberOfVolumesDiscardedByScanner field.
diff --git a/src/schema/terms2/NumberOfVolumesDiscardedByUser.yaml b/src/schema/terms2/NumberOfVolumesDiscardedByUser.yaml
new file mode 100644
index 0000000000..8ea3cd46d5
--- /dev/null
+++ b/src/schema/terms2/NumberOfVolumesDiscardedByUser.yaml
@@ -0,0 +1,4 @@
+---
+name: NumberOfVolumesDiscardedByUser
+description: |
+  RECOMMENDED. Number of volumes (also known as dummy scans) discarded by the user before including the file in the dataset. If possible, including all of the volumes is strongly recommended. Please note that the onsets recorded in the event.tsv file should always refer to the beginning of the acquisition of the first volume in the corresponding imaging file - independent of the value of NumberOfVolumesDiscardedByUser field.
diff --git a/src/schema/terms2/NumberShots.yaml b/src/schema/terms2/NumberShots.yaml
new file mode 100644
index 0000000000..753ecc3eae
--- /dev/null
+++ b/src/schema/terms2/NumberShots.yaml
@@ -0,0 +1,4 @@
+---
+name: NumberShots
+description: |
+  RECOMMENDED. The number of RF excitations need to reconstruct a slice or volume. Please mind that this is not the same as Echo Train Length which denotes the number of lines of k-space collected after an excitation.
diff --git a/src/schema/terms2/ParallelAcquisitionTechnique.yaml b/src/schema/terms2/ParallelAcquisitionTechnique.yaml
new file mode 100644
index 0000000000..ae028066e9
--- /dev/null
+++ b/src/schema/terms2/ParallelAcquisitionTechnique.yaml
@@ -0,0 +1,4 @@
+---
+name: ParallelAcquisitionTechnique
+description: |
+  RECOMMENDED. The type of parallel imaging used (e.g. GRAPPA, SENSE). Corresponds to DICOM Tag 0018, 9078 Parallel Acquisition Technique.
diff --git a/src/schema/terms2/ParallelReductionFactorInPlane.yaml b/src/schema/terms2/ParallelReductionFactorInPlane.yaml
new file mode 100644
index 0000000000..0c46691285
--- /dev/null
+++ b/src/schema/terms2/ParallelReductionFactorInPlane.yaml
@@ -0,0 +1,4 @@
+---
+name: ParallelReductionFactorInPlane
+description: |
+  RECOMMENDED. The parallel imaging (e.g, GRAPPA) factor. Use the denominator of the fraction of k-space encoded for each slice. For example, 2 means half of k-space is encoded. Corresponds to DICOM Tag 0018, 9069 Parallel Reduction Factor In-plane.
diff --git a/src/schema/terms2/PartialFourier.yaml b/src/schema/terms2/PartialFourier.yaml
new file mode 100644
index 0000000000..4ee627f232
--- /dev/null
+++ b/src/schema/terms2/PartialFourier.yaml
@@ -0,0 +1,4 @@
+---
+name: PartialFourier
+description: |
+  RECOMMENDED. The fraction of partial Fourier information collected. Corresponds to DICOM Tag 0018, 9081 Partial Fourier.
diff --git a/src/schema/terms2/PartialFourierDirection.yaml b/src/schema/terms2/PartialFourierDirection.yaml
new file mode 100644
index 0000000000..ae167c3496
--- /dev/null
+++ b/src/schema/terms2/PartialFourierDirection.yaml
@@ -0,0 +1,4 @@
+---
+name: PartialFourierDirection
+description: |
+  RECOMMENDED. The direction where only partial Fourier information was collected. Corresponds to DICOM Tag 0018, 9036 Partial Fourier Direction.
diff --git a/src/schema/terms2/Phase.yaml b/src/schema/terms2/Phase.yaml
new file mode 100644
index 0000000000..4abae27198
--- /dev/null
+++ b/src/schema/terms2/Phase.yaml
@@ -0,0 +1,4 @@
+---
+name: Phase
+description: |
+  phase
diff --git a/src/schema/terms2/PhaseEncodingDirection.yaml b/src/schema/terms2/PhaseEncodingDirection.yaml
new file mode 100644
index 0000000000..ab42354c44
--- /dev/null
+++ b/src/schema/terms2/PhaseEncodingDirection.yaml
@@ -0,0 +1,4 @@
+---
+name: PhaseEncodingDirection
+description: |
+  RECOMMENDED. Possible values: i, j, k, i-, j- k-. The letters i, j, kcorrespond to the first, second and third axis of the data in the NIFTI file. The polarity of the phase encoding is assumed to go from zero index to maximum index unless - sign is present (then the order is reversed - starting from the highest index instead of zero). PhaseEncodingDirection is defined as the direction along which phase is was modulated which may result in visible distortions. Note that this is not the same as the DICOM term InPlanePhaseEncodingDirection which can have ROW or COL values. This parameter is REQUIRED if corresponding fieldmap data is present or when using multiple runs with different phase encoding directions (which can be later used for field inhomogeneity correction).
diff --git a/src/schema/terms2/PowerLineFrequency.yaml b/src/schema/terms2/PowerLineFrequency.yaml
new file mode 100644
index 0000000000..f7bf94eff9
--- /dev/null
+++ b/src/schema/terms2/PowerLineFrequency.yaml
@@ -0,0 +1,4 @@
+---
+name: PowerLineFrequency
+description: |
+  REQUIRED. Frequency (in Hz) of the power grid at the geographical location of the MEG instrument (i.e. 50 or 60)
diff --git a/src/schema/terms2/Proton density map.yaml b/src/schema/terms2/Proton density map.yaml
new file mode 100644
index 0000000000..935d6f28c2
--- /dev/null
+++ b/src/schema/terms2/Proton density map.yaml	
@@ -0,0 +1,4 @@
+---
+name: Proton density map
+description: |
+  PDmap
diff --git a/src/schema/terms2/Proton density.yaml b/src/schema/terms2/Proton density.yaml
new file mode 100644
index 0000000000..8163512fe1
--- /dev/null
+++ b/src/schema/terms2/Proton density.yaml	
@@ -0,0 +1,4 @@
+---
+name: Proton density
+description: |
+  PD
diff --git a/src/schema/terms2/PulseSequenceDetails.yaml b/src/schema/terms2/PulseSequenceDetails.yaml
new file mode 100644
index 0000000000..e2de6c3482
--- /dev/null
+++ b/src/schema/terms2/PulseSequenceDetails.yaml
@@ -0,0 +1,4 @@
+---
+name: PulseSequenceDetails
+description: |
+  RECOMMENDED. Information beyond pulse sequence type that identifies the specific pulse sequence used (i.e. Standard Siemens Sequence distributed with the VB17 software, Siemens WIP ### version #.##, or Sequence written by X using a version compiled on MM/DD/YYYY).
diff --git a/src/schema/terms2/PulseSequenceType.yaml b/src/schema/terms2/PulseSequenceType.yaml
new file mode 100644
index 0000000000..ad81c8d56d
--- /dev/null
+++ b/src/schema/terms2/PulseSequenceType.yaml
@@ -0,0 +1,4 @@
+---
+name: PulseSequenceType
+description: |
+  RECOMMENDED. A general description of the pulse sequence used for the scan (i.e. MPRAGE, Gradient Echo EPI, Spin Echo EPI, Multiband gradient echo EPI).
diff --git a/src/schema/terms2/ReceiveCoilActiveElements.yaml b/src/schema/terms2/ReceiveCoilActiveElements.yaml
new file mode 100644
index 0000000000..f2dba3ab22
--- /dev/null
+++ b/src/schema/terms2/ReceiveCoilActiveElements.yaml
@@ -0,0 +1,4 @@
+---
+name: ReceiveCoilActiveElements
+description: |
+  RECOMMENDED. Information describing the active/selected elements of the receiver coil. This doesn’t correspond to a tag in the DICOM ontology. The vendor-defined terminology for active coil elements can go in this field. As an example, for Siemens, coil channels are typically not activated/selected individually, but rather in pre-defined selectable groups of individual channels, and the list of the groups of elements that are active/selected in any given scan populates the Coil String entry in Siemens’ private DICOM fields (e.g., HEA;HEP for the Siemens standard 32 ch coil when both the anterior and posterior groups are activated). This is a flexible field that can be used as most appropriate for a given vendor and coil to define the active coil elements. Since individual scans can sometimes not have the intended coil elements selected, it is preferable for this field to be populated directly from the DICOM for each individual scan, so that it can be used as a mechanism for checking that a given scan was collected with the intended coil elements selected
diff --git a/src/schema/terms2/ReceiveCoilName.yaml b/src/schema/terms2/ReceiveCoilName.yaml
new file mode 100644
index 0000000000..71521b1cbb
--- /dev/null
+++ b/src/schema/terms2/ReceiveCoilName.yaml
@@ -0,0 +1,4 @@
+---
+name: ReceiveCoilName
+description: |
+  RECOMMENDED. Information describing the receiver coil. Corresponds to DICOM Tag 0018, 1250 Receive Coil Name, although not all vendors populate that DICOM Tag, in which case this field can be derived from an appropriate private DICOM field
diff --git a/src/schema/terms2/RecordingDuration.yaml b/src/schema/terms2/RecordingDuration.yaml
new file mode 100644
index 0000000000..278b70af63
--- /dev/null
+++ b/src/schema/terms2/RecordingDuration.yaml
@@ -0,0 +1,4 @@
+---
+name: RecordingDuration
+description: |
+  RECOMMENDED. Length of the recording in seconds (e.g. 3600)
diff --git a/src/schema/terms2/RecordingType.yaml b/src/schema/terms2/RecordingType.yaml
new file mode 100644
index 0000000000..96c164c273
--- /dev/null
+++ b/src/schema/terms2/RecordingType.yaml
@@ -0,0 +1,4 @@
+---
+name: RecordingType
+description: |
+  RECOMMENDED. Defines whether the recording is continuous or epoched; this latter limited to time windows about events of interest (e.g., stimulus presentations, subject responses etc.)
diff --git a/src/schema/terms2/ReferencesAndLinks.yaml b/src/schema/terms2/ReferencesAndLinks.yaml
new file mode 100644
index 0000000000..b382d38055
--- /dev/null
+++ b/src/schema/terms2/ReferencesAndLinks.yaml
@@ -0,0 +1,4 @@
+---
+name: ReferencesAndLinks
+description: |
+  OPTIONAL. List of references to publication that contain information on the dataset, or links.
diff --git a/src/schema/terms2/RepetitionTime.yaml b/src/schema/terms2/RepetitionTime.yaml
new file mode 100644
index 0000000000..559a430a28
--- /dev/null
+++ b/src/schema/terms2/RepetitionTime.yaml
@@ -0,0 +1,4 @@
+---
+name: RepetitionTime
+description: |
+  REQUIRED. The time in seconds between the beginning of an acquisition of one volume and the beginning of acquisition of the volume following it (TR). Please note that this definition includes time between scans (when no data has been acquired) in case of sparse acquisition schemes. This value needs to be consistent with the pixdim[4] field (after accounting for units stored in xyzt units field) in the NIfTI header. This field is mutually exclusive with VolumeTiming and is derived from DICOM Tag 0018, 0080 and converted to seconds.
diff --git a/src/schema/terms2/SEEGChannelCount.yaml b/src/schema/terms2/SEEGChannelCount.yaml
new file mode 100644
index 0000000000..7af14157c8
--- /dev/null
+++ b/src/schema/terms2/SEEGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: SEEGChannelCount
+description: |
+  RECOMMENDED. Number of SEEG channels
diff --git a/src/schema/terms2/SamplingFrequency.yaml b/src/schema/terms2/SamplingFrequency.yaml
new file mode 100644
index 0000000000..f09ff09837
--- /dev/null
+++ b/src/schema/terms2/SamplingFrequency.yaml
@@ -0,0 +1,4 @@
+---
+name: SamplingFrequency
+description: |
+  REQUIRED. Sampling frequency (in Hz) of all the data in the recording, regardless of their type (e.g., 2400)
diff --git a/src/schema/terms2/ScanOptions.yaml b/src/schema/terms2/ScanOptions.yaml
new file mode 100644
index 0000000000..54821bccae
--- /dev/null
+++ b/src/schema/terms2/ScanOptions.yaml
@@ -0,0 +1,4 @@
+---
+name: ScanOptions
+description: |
+  RECOMMENDED. Parameters of ScanningSequence. Corresponds to DICOM Tag 0018, 0022 Scan Options.
diff --git a/src/schema/terms2/ScanningSequence.yaml b/src/schema/terms2/ScanningSequence.yaml
new file mode 100644
index 0000000000..50cbe95c17
--- /dev/null
+++ b/src/schema/terms2/ScanningSequence.yaml
@@ -0,0 +1,4 @@
+---
+name: ScanningSequence
+description: |
+  RECOMMENDED. Description of the type of data acquired. Corresponds to DICOM Tag 0018, 0020 Scanning Sequence.
diff --git a/src/schema/terms2/SequenceName.yaml b/src/schema/terms2/SequenceName.yaml
new file mode 100644
index 0000000000..964bc0df94
--- /dev/null
+++ b/src/schema/terms2/SequenceName.yaml
@@ -0,0 +1,4 @@
+---
+name: SequenceName
+description: |
+  RECOMMENDED. Manufacturer’s designation of the sequence name. Corresponds to DICOM Tag 0018, 0024 Sequence Name.
diff --git a/src/schema/terms2/SequenceVariant.yaml b/src/schema/terms2/SequenceVariant.yaml
new file mode 100644
index 0000000000..bf1e296088
--- /dev/null
+++ b/src/schema/terms2/SequenceVariant.yaml
@@ -0,0 +1,4 @@
+---
+name: SequenceVariant
+description: |
+  RECOMMENDED. Variant of the ScanningSequence. Corresponds to DICOM Tag 0018, 0021 Sequence Variant.
diff --git a/src/schema/terms2/SliceEncodingDirection.yaml b/src/schema/terms2/SliceEncodingDirection.yaml
new file mode 100644
index 0000000000..9a1cbbb481
--- /dev/null
+++ b/src/schema/terms2/SliceEncodingDirection.yaml
@@ -0,0 +1,4 @@
+---
+name: SliceEncodingDirection
+description: |
+  RECOMMENDED. Possible values: i, j, k, i-, j-, k- (the axis of the NIfTI data along which slices were acquired, and the direction in which SliceTiming is defined with respect to). i, j, k identifiers correspond to the first, second and third axis of the data in the NIfTI file. A - sign indicates that the contents of SliceTiming are defined in reverse order - that is, the first entry corresponds to the slice with the largest index, and the final entry corresponds to slice index zero. When present, the axis defined by SliceEncodingDirection needs to be consistent with the slice dim field in the NIfTI header. When absent, the entries in SliceTiming must be in the order of increasing slice index as defined by the NIfTI header.
diff --git a/src/schema/terms2/SliceTiming.yaml b/src/schema/terms2/SliceTiming.yaml
new file mode 100644
index 0000000000..b80699226d
--- /dev/null
+++ b/src/schema/terms2/SliceTiming.yaml
@@ -0,0 +1,4 @@
+---
+name: SliceTiming
+description: |
+  RECOMMENDED. The time at which each slice was acquired within each volume (frame) of the acquisition. Slice timing is not slice order -- rather, it is a list of times (in JSON format) containing the time (in seconds) of each slice acquisition in relation to the beginning of volume acquisition. The list goes through the slices along the slice axis in the slice encoding dimension (see below). Note that to ensure the proper interpretation of the SliceTiming field, it is important to check if the OPTIONAL SliceEncodingDirection exists. In particular, if SliceEncodingDirection is negative, the entries in SliceTiming are defined in reverse order with respect to the slice axis (i.e., the final entry in the SliceTiming list is the time of acquisition of slice 0). This parameter is REQUIRED for sparse sequences that do not have the DelayTimefield set. In addition without this parameter slice time correction will not be possible.
diff --git a/src/schema/terms2/SoftwareFilters.yaml b/src/schema/terms2/SoftwareFilters.yaml
new file mode 100644
index 0000000000..b7cfbc7653
--- /dev/null
+++ b/src/schema/terms2/SoftwareFilters.yaml
@@ -0,0 +1,4 @@
+---
+name: SoftwareFilters
+description: |
+  REQUIRED. List of temporal and/or spatial software filters applied, or ideally key:value pairs of pre-applied software filters and their parameter values: e.g., {SSS: {frame: head, badlimit: 7}}, {SpatialCompensation: {GradientOrder: Order of the gradient compensation}}. Write n/a if no software filters applied.
diff --git a/src/schema/terms2/SoftwareVersions.yaml b/src/schema/terms2/SoftwareVersions.yaml
new file mode 100644
index 0000000000..599d78d1df
--- /dev/null
+++ b/src/schema/terms2/SoftwareVersions.yaml
@@ -0,0 +1,4 @@
+---
+name: SoftwareVersions
+description: |
+  RECOMMENDED. Manufacturer’s designation of software version of the equipment that produced the composite instances. Corresponds to DICOM Tag 0018, 1020 Software Versions
diff --git a/src/schema/terms2/StartTime.yaml b/src/schema/terms2/StartTime.yaml
new file mode 100644
index 0000000000..f5ddea2c3d
--- /dev/null
+++ b/src/schema/terms2/StartTime.yaml
@@ -0,0 +1,4 @@
+---
+name: StartTime
+description: |
+  REQUIRED. Start time in seconds in relation to the start of acquisition of the first data sample in the corresponding neural dataset (negative values are allowed).
diff --git a/src/schema/terms2/StationName.yaml b/src/schema/terms2/StationName.yaml
new file mode 100644
index 0000000000..7a84026866
--- /dev/null
+++ b/src/schema/terms2/StationName.yaml
@@ -0,0 +1,4 @@
+---
+name: StationName
+description: |
+  RECOMMENDED. Institution defined name of the machine that produced the composite instances. Corresponds to DICOM Tag 0008, 1010 Station Name
diff --git a/src/schema/terms2/SubjectArtefactDescription.yaml b/src/schema/terms2/SubjectArtefactDescription.yaml
new file mode 100644
index 0000000000..f53c452c0b
--- /dev/null
+++ b/src/schema/terms2/SubjectArtefactDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: SubjectArtefactDescription
+description: |
+  RECOMMENDED. Freeform description of the observed subject artefact and its possible cause (e.g. Vagus Nerve Stimulator, non-removable implant). If this field is set to n/a, it will be interpreted as absence of major source of artifacts except cardiac and blinks.
diff --git a/src/schema/terms2/T1 Rho map.yaml b/src/schema/terms2/T1 Rho map.yaml
new file mode 100644
index 0000000000..c14f2dc3ad
--- /dev/null
+++ b/src/schema/terms2/T1 Rho map.yaml	
@@ -0,0 +1,4 @@
+---
+name: T1 Rho map
+description: |
+  T1 rho
diff --git a/src/schema/terms2/T1 map.yaml b/src/schema/terms2/T1 map.yaml
new file mode 100644
index 0000000000..d46c1dae3f
--- /dev/null
+++ b/src/schema/terms2/T1 map.yaml	
@@ -0,0 +1,4 @@
+---
+name: T1 map
+description: |
+  T1 map
diff --git a/src/schema/terms2/T1 weighted.yaml b/src/schema/terms2/T1 weighted.yaml
new file mode 100644
index 0000000000..fb69b0c847
--- /dev/null
+++ b/src/schema/terms2/T1 weighted.yaml	
@@ -0,0 +1,4 @@
+---
+name: T1 weighted
+description: |
+  T1w
diff --git a/src/schema/terms2/T1w.yaml b/src/schema/terms2/T1w.yaml
new file mode 100644
index 0000000000..dbeb8b7c7f
--- /dev/null
+++ b/src/schema/terms2/T1w.yaml
@@ -0,0 +1,4 @@
+---
+name: T1w
+description: |
+  T1w
diff --git a/src/schema/terms2/T2 map.yaml b/src/schema/terms2/T2 map.yaml
new file mode 100644
index 0000000000..f05096ec14
--- /dev/null
+++ b/src/schema/terms2/T2 map.yaml	
@@ -0,0 +1,4 @@
+---
+name: T2 map
+description: |
+  T2 map
diff --git a/src/schema/terms2/T2 weighted.yaml b/src/schema/terms2/T2 weighted.yaml
new file mode 100644
index 0000000000..c8f535c17d
--- /dev/null
+++ b/src/schema/terms2/T2 weighted.yaml	
@@ -0,0 +1,4 @@
+---
+name: T2 weighted
+description: |
+  T2w
diff --git a/src/schema/terms2/T2*.yaml b/src/schema/terms2/T2*.yaml
new file mode 100644
index 0000000000..fb8d79f880
--- /dev/null
+++ b/src/schema/terms2/T2*.yaml
@@ -0,0 +1,4 @@
+---
+name: T2*
+description: |
+  T2star
diff --git a/src/schema/terms2/T2w.yaml b/src/schema/terms2/T2w.yaml
new file mode 100644
index 0000000000..28cd9daf15
--- /dev/null
+++ b/src/schema/terms2/T2w.yaml
@@ -0,0 +1,4 @@
+---
+name: T2w
+description: |
+  T2w
diff --git a/src/schema/terms2/TaskDescription.yaml b/src/schema/terms2/TaskDescription.yaml
new file mode 100644
index 0000000000..d39ec83e2a
--- /dev/null
+++ b/src/schema/terms2/TaskDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: TaskDescription
+description: |
+  RECOMMENDED. Longer description of the task.
diff --git a/src/schema/terms2/TaskName.yaml b/src/schema/terms2/TaskName.yaml
new file mode 100644
index 0000000000..fc5546311d
--- /dev/null
+++ b/src/schema/terms2/TaskName.yaml
@@ -0,0 +1,4 @@
+---
+name: TaskName
+description: |
+  REQUIRED. Name of the task. No two tasks should have the same name. Task label (task-) included in the file name is derived from this field by removing all non alphanumeric ([a-zA-Z0-9]) characters. For example task name faces n-back will corresponds to task label facesnback. A RECOMMENDED convention is to name resting state task using labels beginning with rest.
diff --git a/src/schema/terms2/TotalReadoutTime.yaml b/src/schema/terms2/TotalReadoutTime.yaml
new file mode 100644
index 0000000000..d4b8cd3b17
--- /dev/null
+++ b/src/schema/terms2/TotalReadoutTime.yaml
@@ -0,0 +1,4 @@
+---
+name: TotalReadoutTime
+description: |
+  RECOMMENDED. This is actually the effective total readout time , defined as the readout duration, specified in seconds, that would have generated data with the given level of distortion. It is NOT the actual, physical duration of the readout train. If EffectiveEchoSpacing has been properly computed, it is just EffectiveEchoSpacing * (ReconMatrixPE - 1).3. This parameter is REQUIRED if corresponding field/distortion maps acquired with opposing phase encoding directions are present (see 8.9.4).
diff --git a/src/schema/terms2/TriggerChannelCount.yaml b/src/schema/terms2/TriggerChannelCount.yaml
new file mode 100644
index 0000000000..8ea133b872
--- /dev/null
+++ b/src/schema/terms2/TriggerChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: TriggerChannelCount
+description: |
+  RECOMMENDED. Number of channels for digital (TTL bit level) trigger.
diff --git a/src/schema/terms2/VolumeTiming.yaml b/src/schema/terms2/VolumeTiming.yaml
new file mode 100644
index 0000000000..152c17edce
--- /dev/null
+++ b/src/schema/terms2/VolumeTiming.yaml
@@ -0,0 +1,4 @@
+---
+name: VolumeTiming
+description: |
+  REQUIRED. The time at which each volume was acquired during the acquisition. It is described using a list of times (in JSON format) referring to the onset of each volume in the BOLD series. The list must have the same length as the BOLD series, and the values must be non-negative and monotonically increasing. This field is mutually exclusive with RepetitionTime and DelayTime. If defined, this requires acquisition time (TA) be defined via either SliceTiming or AcquisitionDuration be defined.
diff --git a/src/schema/terms2/dimension.yaml b/src/schema/terms2/dimension.yaml
new file mode 100644
index 0000000000..3e90036317
--- /dev/null
+++ b/src/schema/terms2/dimension.yaml
@@ -0,0 +1,4 @@
+---
+name: dimension
+description: |
+  OPTIONAL. Size of the group (grid/strip/probe) that this electrode belongs to. Must be of form [AxB] with the smallest dimension first (e.g., [1x8]).
diff --git a/src/schema/terms2/duration.yaml b/src/schema/terms2/duration.yaml
new file mode 100644
index 0000000000..a5121c0d05
--- /dev/null
+++ b/src/schema/terms2/duration.yaml
@@ -0,0 +1,4 @@
+---
+name: duration
+description: |
+  REQUIRED. Duration of the event (measured from onset) in seconds. Must always be either zero or positive. A duration value of zero implies that the delta function or event is so short as to be effectively modeled as an impulse.
diff --git a/src/schema/terms2/group.yaml b/src/schema/terms2/group.yaml
new file mode 100644
index 0000000000..ee135ac4ea
--- /dev/null
+++ b/src/schema/terms2/group.yaml
@@ -0,0 +1,4 @@
+---
+name: group
+description: |
+  OPTIONAL. Which group of channels (grid/strip/seeg/depth) this channel belongs to. This is relevant because one group has one cable-bundle and noise can be shared. This can be a name or number. Note that any groups specified in electrodes.tsv must match those present here.
diff --git a/src/schema/terms2/hemisphere.yaml b/src/schema/terms2/hemisphere.yaml
new file mode 100644
index 0000000000..9548cdaa7a
--- /dev/null
+++ b/src/schema/terms2/hemisphere.yaml
@@ -0,0 +1,4 @@
+---
+name: hemisphere
+description: |
+  OPTIONAL. Optional field to specify the hemisphere in which the electrode is placed, one of [L or R] (use capital).
diff --git a/src/schema/terms2/high_cutoff.yaml b/src/schema/terms2/high_cutoff.yaml
new file mode 100644
index 0000000000..87b6236219
--- /dev/null
+++ b/src/schema/terms2/high_cutoff.yaml
@@ -0,0 +1,4 @@
+---
+name: high_cutoff
+description: |
+  OPTIONAL. Frequencies used for the low-pass filter applied to the channel in Hz. If no low-pass filter applied, use n/a. Note that hardware anti-aliasing in A/D conversion of all MEG/EEG electronics applies a low-pass filter; specify its frequency here if applicable.
diff --git a/src/schema/terms2/iEEGCoordinateProcessingDescription.yaml b/src/schema/terms2/iEEGCoordinateProcessingDescription.yaml
new file mode 100644
index 0000000000..f24dbf2346
--- /dev/null
+++ b/src/schema/terms2/iEEGCoordinateProcessingDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateProcessingDescription
+description: |
+  RECOMMENDED. Has any post-processing (such as projection) been done on the electrode positions (e.g., surface_projection, none).
diff --git a/src/schema/terms2/iEEGCoordinateProcessingReference.yaml b/src/schema/terms2/iEEGCoordinateProcessingReference.yaml
new file mode 100644
index 0000000000..2c11809749
--- /dev/null
+++ b/src/schema/terms2/iEEGCoordinateProcessingReference.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateProcessingReference
+description: |
+  RECOMMENDED. A reference to a paper that defines in more detail the method used to localize the electrodes and to post-process the electrode positions. .
diff --git a/src/schema/terms2/iEEGCoordinateSystem.yaml b/src/schema/terms2/iEEGCoordinateSystem.yaml
new file mode 100644
index 0000000000..9017a0032c
--- /dev/null
+++ b/src/schema/terms2/iEEGCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateSystem
+description: |
+  REQUIRED. Defines the coordinate system for the iEEG electrodes. See Appendix VIII for a list of restricted keywords. If positions correspond to pixel indices in a 2D image (of either a volume-rendering, surface-rendering, operative photo, or operative drawing), this must be Pixels. For more information, see the section on 2D coordinate systems
diff --git a/src/schema/terms2/iEEGCoordinateSystemDescription.yaml b/src/schema/terms2/iEEGCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..530d961d33
--- /dev/null
+++ b/src/schema/terms2/iEEGCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateSystemDescription
+description: |
+  RECOMMENDED. Freeform text description or link to document describing the iEEG coordinate system system in detail (e.g., Coordinate system with the origin at anterior commissure (AC), negative y-axis going through the posterior commissure (PC), z-axis going to a mid-hemisperic point which lies superior to the AC-PC line, x-axis going to the right).
diff --git a/src/schema/terms2/iEEGCoordinateUnits.yaml b/src/schema/terms2/iEEGCoordinateUnits.yaml
new file mode 100644
index 0000000000..f7a8c66de3
--- /dev/null
+++ b/src/schema/terms2/iEEGCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateUnits
+description: |
+  REQUIRED. Units of the electrodes.tsv, MUST be m, mm, cm or pixels.
diff --git a/src/schema/terms2/iEEGElectrodeGroups.yaml b/src/schema/terms2/iEEGElectrodeGroups.yaml
new file mode 100644
index 0000000000..74700fc778
--- /dev/null
+++ b/src/schema/terms2/iEEGElectrodeGroups.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGElectrodeGroups
+description: |
+  RECOMMENDED. Field to describe the way electrodes are grouped into strips, grids or depth probes e.g., {grid1: 10x8 grid on left temporal pole, strip2: 1x8 electrode strip on xxx}.
diff --git a/src/schema/terms2/iEEGGround.yaml b/src/schema/terms2/iEEGGround.yaml
new file mode 100644
index 0000000000..386153c4d0
--- /dev/null
+++ b/src/schema/terms2/iEEGGround.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGGround
+description: |
+  RECOMMENDED. Description of the location of the ground electrode (e.g., placed on right mastoid (M2)).
diff --git a/src/schema/terms2/iEEGPlacementScheme.yaml b/src/schema/terms2/iEEGPlacementScheme.yaml
new file mode 100644
index 0000000000..6bbab17531
--- /dev/null
+++ b/src/schema/terms2/iEEGPlacementScheme.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGPlacementScheme
+description: |
+  RECOMMENDED. Freeform description of the placement of the iEEG electrodes. Left/right/bilateral/depth/surface (e.g., left frontal grid and bilateral hippocampal depth or surface strip and STN depth or clinical indication bitemporal, bilateral temporal strips and left grid).
diff --git a/src/schema/terms2/iEEGReference.yaml b/src/schema/terms2/iEEGReference.yaml
new file mode 100644
index 0000000000..ead971abe9
--- /dev/null
+++ b/src/schema/terms2/iEEGReference.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGReference
+description: |
+  REQUIRED. General description of the reference scheme used and (when applicable) of location of the reference electrode in the raw recordings (e.g., left mastoid, bipolar, T01 for electrode with name T01, intracranial electrode on top of a grid, not included with data, upside down electrode). If different channels have a different reference, this field should have a general description and the channel specific reference should be defined in the channels.tsv file.
diff --git a/src/schema/terms2/impedance.yaml b/src/schema/terms2/impedance.yaml
new file mode 100644
index 0000000000..f4481f574c
--- /dev/null
+++ b/src/schema/terms2/impedance.yaml
@@ -0,0 +1,4 @@
+---
+name: impedance
+description: |
+  RECOMMENDED. Impedance of the electrode in kOhm
diff --git a/src/schema/terms2/low_cutoff.yaml b/src/schema/terms2/low_cutoff.yaml
new file mode 100644
index 0000000000..fb02c96c2b
--- /dev/null
+++ b/src/schema/terms2/low_cutoff.yaml
@@ -0,0 +1,4 @@
+---
+name: low_cutoff
+description: |
+  OPTIONAL. Frequencies used for the high-pass filter applied to the channel in Hz. If no high-pass filter applied, use n/a.
diff --git a/src/schema/terms2/material.yaml b/src/schema/terms2/material.yaml
new file mode 100644
index 0000000000..80e7733cb6
--- /dev/null
+++ b/src/schema/terms2/material.yaml
@@ -0,0 +1,4 @@
+---
+name: material
+description: |
+  RECOMMENDED. Material of the electrode, e.g., Tin, Ag/AgCl, Gold
diff --git a/src/schema/terms2/notch.yaml b/src/schema/terms2/notch.yaml
new file mode 100644
index 0000000000..1252600f25
--- /dev/null
+++ b/src/schema/terms2/notch.yaml
@@ -0,0 +1,4 @@
+---
+name: notch
+description: |
+  OPTIONAL. Frequencies used for the notch filter applied to the channel, in Hz. If no notch filter applied, use n/a.
diff --git a/src/schema/terms2/onset.yaml b/src/schema/terms2/onset.yaml
new file mode 100644
index 0000000000..4b20f546e2
--- /dev/null
+++ b/src/schema/terms2/onset.yaml
@@ -0,0 +1,4 @@
+---
+name: onset
+description: |
+  REQUIRED. Onset (in seconds) of the event measured from the beginning of the acquisition of the first volume in the corresponding task imaging data file. If any acquired scans have been discarded before forming the imaging data file, ensure that a time of 0 corresponds to the first image stored. In other words negative numbers in onset are allowed.
diff --git a/src/schema/terms2/reference.yaml b/src/schema/terms2/reference.yaml
new file mode 100644
index 0000000000..a12786c7ec
--- /dev/null
+++ b/src/schema/terms2/reference.yaml
@@ -0,0 +1,4 @@
+---
+name: reference
+description: |
+  OPTIONAL. Name of the reference electrode(s) (not needed when it is common to all channels, in that case it can be specified in * eeg.json as EEGReference).
diff --git a/src/schema/terms2/respiratory.yaml b/src/schema/terms2/respiratory.yaml
new file mode 100644
index 0000000000..f12094fe51
--- /dev/null
+++ b/src/schema/terms2/respiratory.yaml
@@ -0,0 +1,4 @@
+---
+name: respiratory
+description: |
+  continuous breathing measurement
diff --git a/src/schema/terms2/response_time.yaml b/src/schema/terms2/response_time.yaml
new file mode 100644
index 0000000000..2c281169d0
--- /dev/null
+++ b/src/schema/terms2/response_time.yaml
@@ -0,0 +1,4 @@
+---
+name: response_time
+description: |
+  OPTIONAL. Response time measured in seconds. A negative response time can be used to represent preemptive responses and n/a denotes a missed response.
diff --git a/src/schema/terms2/sample.yaml b/src/schema/terms2/sample.yaml
new file mode 100644
index 0000000000..25b8ad2c03
--- /dev/null
+++ b/src/schema/terms2/sample.yaml
@@ -0,0 +1,4 @@
+---
+name: sample
+description: |
+  OPTIONAL. Onset of the event according to the sampling scheme of the recorded modality (i.e., referring to the raw data file that the events.tsv file accompanies).
diff --git a/src/schema/terms2/sampling_frequency.yaml b/src/schema/terms2/sampling_frequency.yaml
new file mode 100644
index 0000000000..e4437a8de5
--- /dev/null
+++ b/src/schema/terms2/sampling_frequency.yaml
@@ -0,0 +1,4 @@
+---
+name: sampling_frequency
+description: |
+  OPTIONAL. Sampling rate of the channel in Hz.
diff --git a/src/schema/terms2/size.yaml b/src/schema/terms2/size.yaml
new file mode 100644
index 0000000000..7dc94b05a6
--- /dev/null
+++ b/src/schema/terms2/size.yaml
@@ -0,0 +1,4 @@
+---
+name: size
+description: |
+  REQUIRED. Surface area of the electrode, in mm^2.
diff --git a/src/schema/terms2/software_filters.yaml b/src/schema/terms2/software_filters.yaml
new file mode 100644
index 0000000000..e441b6202c
--- /dev/null
+++ b/src/schema/terms2/software_filters.yaml
@@ -0,0 +1,4 @@
+---
+name: software_filters
+description: |
+  OPTIONAL. List of temporal and/or spatial software filters applied (e.g. SSS, SpatialCompensation). Note that parameters should be defined in the general MEG sidecar .json file. Indicate n/a in the absence of software filters applied.
diff --git a/src/schema/terms2/status.yaml b/src/schema/terms2/status.yaml
new file mode 100644
index 0000000000..3695e8db37
--- /dev/null
+++ b/src/schema/terms2/status.yaml
@@ -0,0 +1,4 @@
+---
+name: status
+description: |
+  OPTIONAL. Data quality observed on the channel (good/bad). A channel is considered bad if its data quality is compromised by excessive noise. Description of noise type SHOULD be provided in [status_description].
diff --git a/src/schema/terms2/status_description.yaml b/src/schema/terms2/status_description.yaml
new file mode 100644
index 0000000000..f5a5171ae9
--- /dev/null
+++ b/src/schema/terms2/status_description.yaml
@@ -0,0 +1,4 @@
+---
+name: status_description
+description: |
+  OPTIONAL. Freeform text description of noise or artifact affecting data quality on the channel. It is meant to explain why the channel was declared bad in [status].
diff --git a/src/schema/terms2/stim_file.yaml b/src/schema/terms2/stim_file.yaml
new file mode 100644
index 0000000000..6aedaf178c
--- /dev/null
+++ b/src/schema/terms2/stim_file.yaml
@@ -0,0 +1,4 @@
+---
+name: stim_file
+description: |
+  OPTIONAL. Represents the location of the stimulus file (image, video, sound etc.) presented at the given onset time. There are no restrictions on the file formats of the stimuli files, but they should be stored in the /stimuli folder (under the root folder of the dataset; with optional subfolders). The values under the stim_file column correspond to a path relative to /stimuli. For example images/cat03.jpg will be translated to /stimuli/images/cat03.jpg.
diff --git a/src/schema/terms2/trial_type.yaml b/src/schema/terms2/trial_type.yaml
new file mode 100644
index 0000000000..06dc5a78f0
--- /dev/null
+++ b/src/schema/terms2/trial_type.yaml
@@ -0,0 +1,4 @@
+---
+name: trial_type
+description: |
+  Primary categorisation of each trial to identify them as instances of the experimental conditions. For example: for a response inhibition task, it could take on values go and no-go to refer to response initiation and response inhibition experimental conditions.
diff --git a/src/schema/terms2/type.yaml b/src/schema/terms2/type.yaml
new file mode 100644
index 0000000000..83e3a8bcb3
--- /dev/null
+++ b/src/schema/terms2/type.yaml
@@ -0,0 +1,4 @@
+---
+name: type
+description: |
+  Term used to indicate the sub-category of the general class being described. Example: if the prov:Entity is an electrode, the bids:type could be disk or needle. This is a generalization of the way the term is used within the BIDS specification.

From 1e6dc8fee3065707049762eb286737006bc104e2 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Fri, 2 Oct 2020 18:33:39 -0400
Subject: [PATCH 12/16] Update datatypes.

---
 src/schema/datatypes/anat.yaml | 22 ++++-----
 src/schema/datatypes/beh.yaml  | 12 ++---
 src/schema/datatypes/dwi.yaml  | 16 +++---
 src/schema/datatypes/eeg.yaml  | 65 +++++++++----------------
 src/schema/datatypes/fmap.yaml | 16 +++---
 src/schema/datatypes/func.yaml | 32 ++++++------
 src/schema/datatypes/ieeg.yaml | 60 ++++++++---------------
 src/schema/datatypes/meg.yaml  | 89 +++++++++++++++-------------------
 8 files changed, 130 insertions(+), 182 deletions(-)

diff --git a/src/schema/datatypes/anat.yaml b/src/schema/datatypes/anat.yaml
index bae17648ce..0b003ab39c 100644
--- a/src/schema/datatypes/anat.yaml
+++ b/src/schema/datatypes/anat.yaml
@@ -20,12 +20,12 @@
     - .nii
     - .json
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     run: optional
-    acq: optional
-    ce: optional
-    rec: optional
+    acquisition: optional
+    ceagent: optional
+    reconstruction: optional
 # Second group
 - suffixes:
     - defacemask
@@ -34,10 +34,10 @@
     - .nii
     - .json
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     run: optional
-    acq: optional
-    ce: optional
-    rec: optional
-    mod: optional
+    acquisition: optional
+    ceagent: optional
+    reconstruction: optional
+    modality: optional
diff --git a/src/schema/datatypes/beh.yaml b/src/schema/datatypes/beh.yaml
index 536e883214..d9de3cd0d0 100644
--- a/src/schema/datatypes/beh.yaml
+++ b/src/schema/datatypes/beh.yaml
@@ -7,10 +7,10 @@
     - .tsv.gz
     - .json
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
+    acquisition: optional
     run: optional
     recording: optional
 # Second group
@@ -21,8 +21,8 @@
     - .tsv
     - .json
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
+    acquisition: optional
     run: optional
diff --git a/src/schema/datatypes/dwi.yaml b/src/schema/datatypes/dwi.yaml
index 26f78761cf..8a296eb9a2 100644
--- a/src/schema/datatypes/dwi.yaml
+++ b/src/schema/datatypes/dwi.yaml
@@ -9,10 +9,10 @@
     - .bvec
     - .bval
   entities:
-    sub: required
-    ses: optional
-    acq: optional
-    dir: optional
+    subject: required
+    session: optional
+    acquisition: optional
+    direction: optional
     run: optional
 # Second group
 - suffixes:
@@ -22,8 +22,8 @@
     - .nii
     - .json
   entities:
-    sub: required
-    ses: optional
-    acq: optional
-    dir: optional
+    subject: required
+    session: optional
+    acquisition: optional
+    direction: optional
     run: optional
diff --git a/src/schema/datatypes/eeg.yaml b/src/schema/datatypes/eeg.yaml
index 4e00507778..942d6291f6 100644
--- a/src/schema/datatypes/eeg.yaml
+++ b/src/schema/datatypes/eeg.yaml
@@ -1,5 +1,4 @@
 ---
-# Main group
 - suffixes:
     - eeg
   extensions:
@@ -12,74 +11,54 @@
     - .fdt
     - .bdf
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
+    acquisition: optional
     run: optional
-# Group 2
 - suffixes:
     - channels
   extensions:
     - .json
     - .tsv
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
     run: optional
-# Group 3
-- suffixes:
-    - electrodes
-  extensions:
-    - .json
-    - .tsv
-  entities:
-    sub: required
-    ses: optional
-    acq: optional
-    run: optional
-# Group 4
 - suffixes:
     - coordsystem
   extensions:
     - .json
   entities:
-    sub: required
-    ses: optional
-    acq: optional
-# Group 5
+    subject: required
+    session: optional
+    acquisition: optional
 - suffixes:
-    - photo
+    - electrodes
   extensions:
-    - .jpg
+    - .json
+    - .tsv
   entities:
-    sub: required
-    ses: optional
-    acq: optional
-# Group 6
+    subject: required
+    session: optional
+    acquisition: optional
+    run: optional
 - suffixes:
     - events
   extensions:
     - .json
     - .tsv
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
     run: optional
-# Group 7
 - suffixes:
-    - physio
-    - stim
+    - photo
   extensions:
-    - .json
-    - .tsv.gz
+    - .jpg
   entities:
-    sub: required
-    ses: optional
-    task: required
-    acq: optional
-    run: optional
+    subject: required
+    session: optional
+    acquisition: optional
diff --git a/src/schema/datatypes/fmap.yaml b/src/schema/datatypes/fmap.yaml
index 98d0f6c45c..8ff1ddf7fb 100644
--- a/src/schema/datatypes/fmap.yaml
+++ b/src/schema/datatypes/fmap.yaml
@@ -13,9 +13,9 @@
     - .nii
     - .json
   entities:
-    sub: required
-    ses: optional
-    acq: optional
+    subject: required
+    session: optional
+    acquisition: optional
     run: optional
 # Second group
 - suffixes:
@@ -25,9 +25,9 @@
     - .nii
     - .json
   entities:
-    sub: required
-    ses: optional
-    acq: optional
-    ce: optional
-    dir: required
+    subject: required
+    session: optional
+    acquisition: optional
+    ceagent: optional
+    direction: required
     run: optional
diff --git a/src/schema/datatypes/func.yaml b/src/schema/datatypes/func.yaml
index 62a26b60b8..d424aa1dba 100644
--- a/src/schema/datatypes/func.yaml
+++ b/src/schema/datatypes/func.yaml
@@ -10,13 +10,13 @@
     - .nii
     - .json
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
-    ce: optional
-    rec: optional
-    dir: optional
+    acquisition: optional
+    ceagent: optional
+    reconstruction: optional
+    direction: optional
     run: optional
     echo: optional
 # Second group
@@ -26,13 +26,13 @@
     - .tsv
     - .json
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
-    ce: optional
-    rec: optional
-    dir: optional
+    acquisition: optional
+    ceagent: optional
+    reconstruction: optional
+    direction: optional
     run: optional
     echo: optional
 # Third group
@@ -43,10 +43,10 @@
     - .tsv.gz
     - .json
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
-    rec: optional
+    acquisition: optional
+    reconstruction: optional
     run: optional
     recording: optional
diff --git a/src/schema/datatypes/ieeg.yaml b/src/schema/datatypes/ieeg.yaml
index 1032bbe460..7ed94d934b 100644
--- a/src/schema/datatypes/ieeg.yaml
+++ b/src/schema/datatypes/ieeg.yaml
@@ -12,75 +12,53 @@
     - .fdt
     - .nwb
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
+    acquisition: optional
     run: optional
-# Group 2
 - suffixes:
     - channels
   extensions:
     - .json
     - .tsv
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
     run: optional
-# Group 3
 - suffixes:
-    - electrodes
+    - coordsystem
   extensions:
     - .json
-    - .tsv
   entities:
-    sub: required
-    ses: optional
-    acq: optional
+    subject: required
+    session: optional
     space: optional
-# Group 4
 - suffixes:
-    - coordsystem
+    - electrodes
   extensions:
     - .json
+    - .tsv
   entities:
-    sub: required
-    ses: optional
-    acq: optional
+    subject: required
+    session: optional
     space: optional
-# Group 5
-- suffixes:
-    - photo
-  extensions:
-    - .jpg
-  entities:
-    sub: required
-    ses: optional
-    acq: optional
-# Group 6
 - suffixes:
     - events
   extensions:
     - .json
     - .tsv
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
     run: optional
-# Group 7
 - suffixes:
-    - physio
-    - stim
+    - photo
   extensions:
-    - .json
-    - .tsv.gz
+    - .jpg
   entities:
-    sub: required
-    ses: optional
-    task: required
-    acq: optional
-    run: optional
+    subject: required
+    session: optional
+    acquisition: optional
diff --git a/src/schema/datatypes/meg.yaml b/src/schema/datatypes/meg.yaml
index 93b875b603..a500339fc2 100644
--- a/src/schema/datatypes/meg.yaml
+++ b/src/schema/datatypes/meg.yaml
@@ -1,5 +1,5 @@
 ---
-# Main group
+# First group
 - suffixes:
     - meg
   extensions:
@@ -15,78 +15,69 @@
     - .kdf
     - .mhd
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
+    acquisition: optional
     run: optional
-    proc: optional
+    processing: optional
     split: optional
-# Group 2
+# Second group
 - suffixes:
-    - channels
+    - headshape
   extensions:
-    - .json
-    - .tsv
+    - .pos
+    - .txt
   entities:
-    sub: required
-    ses: optional
-    task: required
-    acq: optional
-    run: optional
-    proc: optional
-# Group 3
+    subject: required
+    session: optional
+    acquisition: optional
+# Third group
 - suffixes:
-    - coordsystem
+    - markers
   extensions:
     - .json
   entities:
-    sub: required
-    ses: optional
-    acq: optional
-# Group 4
+    subject: required
+    session: optional
+    task: optional
+    acquisition: optional
+    space: optional
+# Fourth
 - suffixes:
-    - photo
+    - coordsystem
   extensions:
-    - .jpg
+    - .json
   entities:
-    sub: required
-    ses: optional
-    acq: optional
-# Group 5
+    subject: required
+    session: optional
+    acquisition: optional
 - suffixes:
-    - headshape
+    - channels
   extensions:
-    - .pos
-    - .txt
+    - .json
+    - .tsv
   entities:
-    sub: required
-    ses: optional
-    acq: optional
-# Group 6
+    subject: required
+    session: optional
+    task: required
+    run: optional
+    processing: optional
 - suffixes:
     - events
   extensions:
     - .json
     - .tsv
   entities:
-    sub: required
-    ses: optional
+    subject: required
+    session: optional
     task: required
-    acq: optional
     run: optional
-    proc: optional
-# Group 7
 - suffixes:
-    - stim
-    - physio
+    - photo
   extensions:
-    - .json
-    - .tsv.gz
+    - .jpg
   entities:
-    sub: required
-    ses: optional
-    task: required
-    acq: optional
-    run: optional
-    proc: optional
+    subject: required
+    session: optional
+    acquisition: optional

From bf55e7255aba5e1013e5f9a870ca8cb21ee5f464 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Fri, 2 Oct 2020 18:38:36 -0400
Subject: [PATCH 13/16] Rename some more.

---
 src/schema/entities.yaml                      | 30 ++++++++++++++-----
 .../terms/{acq.yaml => acquisition.yaml}      |  0
 src/schema/terms/{ce.yaml => ceagent.yaml}    |  0
 src/schema/terms/{dir.yaml => direction.yaml} |  3 --
 src/schema/terms/echo.yaml                    |  3 --
 src/schema/terms/{mod.yaml => modality.yaml}  |  3 --
 .../terms/{proc.yaml => processing.yaml}      |  3 --
 .../terms/{rec.yaml => reconstruction.yaml}   |  3 --
 src/schema/terms/recording.yaml               |  3 --
 src/schema/terms/run.yaml                     |  3 --
 src/schema/terms/{ses.yaml => session.yaml}   |  3 --
 src/schema/terms/space.yaml                   |  3 --
 src/schema/terms/split.yaml                   |  3 --
 src/schema/terms/{sub.yaml => subject.yaml}   |  0
 src/schema/terms/task.yaml                    |  3 --
 15 files changed, 22 insertions(+), 41 deletions(-)
 rename src/schema/terms/{acq.yaml => acquisition.yaml} (100%)
 rename src/schema/terms/{ce.yaml => ceagent.yaml} (100%)
 rename src/schema/terms/{dir.yaml => direction.yaml} (73%)
 rename src/schema/terms/{mod.yaml => modality.yaml} (81%)
 rename src/schema/terms/{proc.yaml => processing.yaml} (89%)
 rename src/schema/terms/{rec.yaml => reconstruction.yaml} (77%)
 rename src/schema/terms/{ses.yaml => session.yaml} (94%)
 rename src/schema/terms/{sub.yaml => subject.yaml} (100%)

diff --git a/src/schema/entities.yaml b/src/schema/entities.yaml
index 10c5f16969..91dd75a079 100644
--- a/src/schema/entities.yaml
+++ b/src/schema/entities.yaml
@@ -1,30 +1,44 @@
 ---
 # Ordering and attributes of entities
-- sub:
+- subject:
+    entity: sub
     format: label
-- ses:
+- session:
+    entity: ses
     format: label
 - task:
+    entity: task
     format: label
-- acq:
+- acquisition:
+    entity: acq
     format: label
-- ce:
+- ceagent:
+    entity: ce
     format: label
-- rec:
+- reconstruction:
+    entity: rec
     format: label
-- dir:
+- direction:
+    entity: dir
     format: label
 - run:
+    entity: run
     format: index
-- mod:
+- modality:
+    entity: mod
     format: label
 - echo:
+    entity: echo
     format: index
 - recording:
+    entity: recording
     format: label
-- proc:
+- processing:
+    entity: proc
     format: label
 - space:
+    entity: space
     format: label
 - split:
+    entity: split
     format: index
diff --git a/src/schema/terms/acq.yaml b/src/schema/terms/acquisition.yaml
similarity index 100%
rename from src/schema/terms/acq.yaml
rename to src/schema/terms/acquisition.yaml
diff --git a/src/schema/terms/ce.yaml b/src/schema/terms/ceagent.yaml
similarity index 100%
rename from src/schema/terms/ce.yaml
rename to src/schema/terms/ceagent.yaml
diff --git a/src/schema/terms/dir.yaml b/src/schema/terms/direction.yaml
similarity index 73%
rename from src/schema/terms/dir.yaml
rename to src/schema/terms/direction.yaml
index bb1e9dd611..46b737c5e5 100644
--- a/src/schema/terms/dir.yaml
+++ b/src/schema/terms/direction.yaml
@@ -1,8 +1,5 @@
 ---
 name: Phase-Encoding Direction
-class: entity
 description: |
   The `dir-<label>` key/value can be used to distinguish
   different phase-encoding directions.
-# Entity-specific fields
-format: label
diff --git a/src/schema/terms/echo.yaml b/src/schema/terms/echo.yaml
index b42f76a628..f6d7e5a775 100644
--- a/src/schema/terms/echo.yaml
+++ b/src/schema/terms/echo.yaml
@@ -1,6 +1,5 @@
 ---
 name: Echo
-class: entity
 description: |
   Multi-echo data MUST be split into one file per echo.
   Each file shares the same name with the exception of the `_echo-<index>`
@@ -8,5 +7,3 @@ description: |
   Please note that the `<index>` denotes the number/index (in the form of a
   nonnegative integer) of the echo not the echo time value which needs to be
   stored in the field `EchoTime` of the separate JSON file.
-# Entity-specific fields
-format: index
diff --git a/src/schema/terms/mod.yaml b/src/schema/terms/modality.yaml
similarity index 81%
rename from src/schema/terms/mod.yaml
rename to src/schema/terms/modality.yaml
index e80387fc57..87b2850ff6 100644
--- a/src/schema/terms/mod.yaml
+++ b/src/schema/terms/modality.yaml
@@ -1,9 +1,6 @@
 ---
 name: Corresponding Modality
-class: entity
 description: |
   The `mod-<label>` key/value pair corresponds to modality label for defacing
   masks, e.g., T1w, inplaneT1, referenced by a defacemask image.
   E.g., `sub-01_mod-T1w_defacemask.nii.gz`.
-# Entity-specific fields
-format: label
diff --git a/src/schema/terms/proc.yaml b/src/schema/terms/processing.yaml
similarity index 89%
rename from src/schema/terms/proc.yaml
rename to src/schema/terms/processing.yaml
index 3b478e5be0..51c8f6f236 100644
--- a/src/schema/terms/proc.yaml
+++ b/src/schema/terms/processing.yaml
@@ -1,6 +1,5 @@
 ---
 name: Processed (on device)
-class: entity
 description: |
   The proc label is analogous to rec for MR and denotes a variant of a file
   that was a result of particular processing performed on the device.
@@ -8,5 +7,3 @@ description: |
   (e.g. sss, tsss, trans, quat, mc, etc.), which some installations impose to
   be run on raw data because of active shielding software corrections before
   the MEG data can actually be exploited.
-# Entity-specific fields
-format: label
diff --git a/src/schema/terms/rec.yaml b/src/schema/terms/reconstruction.yaml
similarity index 77%
rename from src/schema/terms/rec.yaml
rename to src/schema/terms/reconstruction.yaml
index 5535900bfe..fce0d506f4 100644
--- a/src/schema/terms/rec.yaml
+++ b/src/schema/terms/reconstruction.yaml
@@ -1,9 +1,6 @@
 ---
 name: Reconstruction
-class: entity
 description: |
   The `rec-<label>` key/value can be used to distinguish
   different reconstruction algorithms (for example ones using motion
   correction).
-# Entity-specific fields
-format: label
diff --git a/src/schema/terms/recording.yaml b/src/schema/terms/recording.yaml
index fca62489d5..611f1d0c56 100644
--- a/src/schema/terms/recording.yaml
+++ b/src/schema/terms/recording.yaml
@@ -1,10 +1,7 @@
 ---
 name: Recording
-class: entity
 description: |
   More than one continuous recording file can be included (with different
   sampling frequencies).
   In such case use different labels.
   For example: `_recording-contrast`, `_recording-saturation`.
-# Entity-specific fields
-format: label
diff --git a/src/schema/terms/run.yaml b/src/schema/terms/run.yaml
index 0f4e5bc18c..cdcb6f5fc0 100644
--- a/src/schema/terms/run.yaml
+++ b/src/schema/terms/run.yaml
@@ -1,10 +1,7 @@
 ---
 name: Run
-class: entity
 description: |
   If several scans of the same modality are acquired they MUST be indexed
   with a key-value pair: `_run-1`, `_run-2`, ..., `_run-<index>`
   (only nonnegative integers are allowed for the `<index>`).
   When there is only one scan of a given type the run key MAY be omitted.
-# Entity-specific fields
-format: index
diff --git a/src/schema/terms/ses.yaml b/src/schema/terms/session.yaml
similarity index 94%
rename from src/schema/terms/ses.yaml
rename to src/schema/terms/session.yaml
index 6f6e7523e9..79ef53c178 100644
--- a/src/schema/terms/ses.yaml
+++ b/src/schema/terms/session.yaml
@@ -1,6 +1,5 @@
 ---
 name: Session
-class: entity
 description: |
   A logical grouping of neuroimaging and behavioral data consistent across
   subjects.
@@ -16,5 +15,3 @@ description: |
   Defining multiple sessions is appropriate when several identical or similar
   data acquisitions are planned and performed on all -or most- subjects,
   often in the case of some intervention between sessions (e.g., training).
-# Entity-specific fields
-format: label
diff --git a/src/schema/terms/space.yaml b/src/schema/terms/space.yaml
index 6486e2e14a..5de4a5e33b 100644
--- a/src/schema/terms/space.yaml
+++ b/src/schema/terms/space.yaml
@@ -1,9 +1,6 @@
 ---
 name: Space
-class: entity
 description: |
   The space label (`*[_space-<label>]_electrodes.tsv`) can be used
   to indicate the way in which electrode positions are interpreted.
   The space label needs to be taken from the list in Appendix VIII.
-# Entity-specific fields
-format: label
diff --git a/src/schema/terms/split.yaml b/src/schema/terms/split.yaml
index edef98a700..db83cb6755 100644
--- a/src/schema/terms/split.yaml
+++ b/src/schema/terms/split.yaml
@@ -1,6 +1,5 @@
 ---
 name: Split
-class: entity
 description: |
   In the case of long data recordings that exceed a file size of 2Gb, the
   .fif files are conventionally split into multiple parts.
@@ -13,5 +12,3 @@ description: |
   the file names, but also the internal file pointers will be updated.
   It is RECOMMENDED that .fif files with multiple parts use the
   `split-<index>` entity to indicate each part.
-# Entity-specific fields
-format: index
diff --git a/src/schema/terms/sub.yaml b/src/schema/terms/subject.yaml
similarity index 100%
rename from src/schema/terms/sub.yaml
rename to src/schema/terms/subject.yaml
diff --git a/src/schema/terms/task.yaml b/src/schema/terms/task.yaml
index 60c1c27aca..758dcce725 100644
--- a/src/schema/terms/task.yaml
+++ b/src/schema/terms/task.yaml
@@ -1,10 +1,7 @@
 ---
 name: Task
-class: entity
 description: |
   Each task has a unique label that MUST only consist of letters and/or
   numbers (other characters, including spaces and underscores, are not
   allowed).
   Those labels MUST be consistent across subjects and sessions.
-# Entity-specific fields
-format: label

From 74cd78682cb23edb5160058a72d09bce789b882d Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Fri, 2 Oct 2020 18:40:58 -0400
Subject: [PATCH 14/16] Drop common principles.

---
 src/schema/common_principles.yaml | 103 ------------------------------
 1 file changed, 103 deletions(-)
 delete mode 100644 src/schema/common_principles.yaml

diff --git a/src/schema/common_principles.yaml b/src/schema/common_principles.yaml
deleted file mode 100644
index 805754ed28..0000000000
--- a/src/schema/common_principles.yaml
+++ /dev/null
@@ -1,103 +0,0 @@
----
-Dataset:
-  description: |
-    A set of neuroimaging and behavioral data acquired for a purpose of a
-    particular study.
-    A dataset consists of data acquired from one or more subjects, possibly
-    from multiple sessions.
-Subject:
-  description: |
-    A person or animal participating in the study.
-    Used interchangeably with term Participant.
-Session:
-  description: |
-    A logical grouping of neuroimaging and behavioral data consistent across
-    subjects.
-    Session can (but doesn't have to) be synonymous to a visit in a
-    longitudinal study.
-    In general, subjects will stay in the scanner during one session.
-    However, for example, if a subject has to leave the scanner room and then
-    be re-positioned on the scanner bed, the set of MRI acquisitions will still
-    be considered as a session and match sessions acquired in other subjects.
-    Similarly, in situations where different data types are obtained over
-    several visits (for example fMRI on one day followed by DWI the day after)
-    those can be grouped in one session.
-    Defining multiple sessions is appropriate when several identical or similar
-    data acquisitions
-    are planned and performed on all -or most- subjects, often in the case of
-    some intervention between sessions (e.g., training).
-Data acquisition:
-  description: |
-    A continuous uninterrupted block of time during which a brain scanning
-    instrument was acquiring data according to particular scanning
-    sequence/protocol.
-Data type:
-  description: |
-    A functional group of different types of data.
-    BIDS defines eight data types:
-    func (task based and resting state functional MRI),
-    dwi (diffusion weighted imaging),
-    fmap (field inhomogeneity mapping data such as field maps),
-    anat (structural imaging such as T1, T2, etc.),
-    meg (magnetoencephalography),
-    eeg (electroencephalography),
-    ieeg (intracranial electroencephalography),
-    beh (behavioral).
-    Data files are contained in a directory named for the data type.
-    In raw datasets, the data type directory is nested inside subject and
-    (optionally) session directories.
-Task:
-  description: |
-    A set of structured activities performed by the participant.
-    Tasks are usually accompanied by stimuli and responses, and can greatly
-    vary in complexity.
-    For the purpose of this specification we consider the so-called
-    "resting state" a task.
-    In the context of brain scanning, a task is always tied to one data
-    acquisition.
-    Therefore, even if during one acquisition the subject performed multiple
-    conceptually different behaviors (with different sets of instructions) they
-    will be considered one (combined) task.
-Event:
-  description: |
-    A stimulus or subject response recorded during a task.
-    Each event has an onset time and duration.
-    Note that not all tasks will have recorded events (e.g., “resting state”).
-Run:
-  description: |
-    An uninterrupted repetition of data acquisition that has the same
-    acquisition parameters and task (however events can change from run to run
-    due to different subject response or randomized nature of the stimuli).
-    Run is a synonym of a data acquisition.
-Modality:
-  description: |
-    The category of brain data recorded by a file.
-    For MRI data, different pulse sequences are considered distinct modalities,
-    such as T1w, bold or dwi.
-    For passive recording techniques, such as EEG, MEG or iEEG, the technique
-    is sufficiently uniform to define the modalities eeg, meg and ieeg.
-    When applicable, the modality is indicated in the suffix.
-    The modality may overlap with, but should not be confused with the data
-    type.
-index:
-  description: |
-    A nonnegative integer, possibly prefixed with arbitrary number of 0s for
-    consistent indentation, e.g., it is 01 in run-01 following run-<index>
-    specification.
-label:
-  description: |
-    An alphanumeric value, possibly prefixed with arbitrary number of 0s for
-    consistent indentation, e.g., it is rest in task-rest following
-    task-<label> specification.
-suffix:
-  description: |
-    An alphanumeric value, located after the key-value_ pairs
-    (thus after the final _), right before the File extension,
-    e.g., it is eeg in sub-05_task-matchingpennies_eeg.vhdr.
-File extension:
-  description: |
-    A portion of the the file name after the left-most period (.) preceded by
-    any other alphanumeric.
-    For example, .gitignore does not have a file extension, but the file
-    extension of test.nii.gz is .nii.gz.
-    Note that the left-most period is included in the file extension.

From 60f3cc2ab23c322edb9a26bee1467c2eb6dd05b8 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Fri, 2 Oct 2020 19:20:02 -0400
Subject: [PATCH 15/16] Merge terms and remove OPTIONAL/REQUIRED/etc.

---
 src/schema/terms/.nii.gz.yaml                   |  1 -
 .../{terms2 => terms}/Acknowledgements.yaml     |  0
 src/schema/terms/AcquisitionDuration.yaml       |  4 ++++
 .../AnatomicalLandmarkCoordinateSystem.yaml     |  4 ++++
 ...icalLandmarkCoordinateSystemDescription.yaml |  4 ++++
 .../AnatomicalLandmarkCoordinateUnits.yaml      |  4 ++++
 .../terms/AnatomicalLandmarkCoordinates.yaml    |  4 ++++
 src/schema/terms/AssociatedEmptyRoom.yaml       |  4 ++++
 src/schema/terms/Authors.yaml                   |  4 ++++
 src/schema/terms/BIDSVersion.yaml               |  4 ++++
 src/schema/terms/CapManufacturer.yaml           |  4 ++++
 src/schema/terms/CapManufacturersModelName.yaml |  4 ++++
 src/schema/terms/CogAtlasID.yaml                |  4 ++++
 src/schema/terms/CogPOID.yaml                   |  4 ++++
 src/schema/terms/CoilCombinationMethod.yaml     |  4 ++++
 src/schema/terms/Columns.yaml                   |  4 ++++
 .../terms/ContinuousHeadLocalization.yaml       |  4 ++++
 src/schema/terms/DCOffsetCorrection.yaml        |  4 ++++
 src/schema/terms/DatasetDOI.yaml                |  4 ++++
 src/schema/terms/DelayAfterTrigger.yaml         |  4 ++++
 src/schema/terms/DelayTime.yaml                 |  4 ++++
 src/schema/{terms2 => terms}/Derivative.yaml    |  0
 src/schema/terms/DeviceSerialNumber.yaml        |  4 ++++
 src/schema/terms/DewarPosition.yaml             |  4 ++++
 src/schema/terms/DigitizedHeadPoints.yaml       |  4 ++++
 .../DigitizedHeadPointsCoordinateSystem.yaml    |  4 ++++
 ...edHeadPointsCoordinateSystemDescription.yaml |  4 ++++
 .../DigitizedHeadPointsCoordinateUnits.yaml     |  4 ++++
 src/schema/terms/DigitizedLandmarks.yaml        |  4 ++++
 src/schema/terms/DwellTime.yaml                 |  4 ++++
 .../{terms2 => terms}/ECGChannelCount.yaml      |  2 +-
 .../{terms2 => terms}/ECOGChannelCount.yaml     |  2 +-
 src/schema/terms/EEGChannelCount.yaml           |  4 ++++
 src/schema/terms/EEGCoordinateSystem.yaml       |  4 ++++
 .../terms/EEGCoordinateSystemDescription.yaml   |  4 ++++
 src/schema/terms/EEGCoordinateUnits.yaml        |  4 ++++
 src/schema/terms/EEGGround.yaml                 |  4 ++++
 src/schema/terms/EEGPlacementScheme.yaml        |  4 ++++
 src/schema/terms/EEGReference.yaml              |  4 ++++
 .../{terms2 => terms}/EMGChannelCount.yaml      |  2 +-
 .../{terms2 => terms}/EOGChannelCount.yaml      |  2 +-
 src/schema/terms/EchoTime.yaml                  |  4 ++++
 src/schema/terms/EffectiveEchoSpacing.yaml      |  4 ++++
 src/schema/terms/ElectricalStimulation.yaml     |  4 ++++
 .../terms/ElectricalStimulationParameters.yaml  |  4 ++++
 src/schema/terms/ElectrodeManufacturer.yaml     |  4 ++++
 .../terms/ElectrodeManufacturersModelName.yaml  |  4 ++++
 src/schema/terms/EpochLength.yaml               |  4 ++++
 src/schema/terms/FLAIR.yaml                     |  4 ++++
 src/schema/terms/FLASH.yaml                     |  4 ++++
 src/schema/terms/FiducialsCoordinateSystem.yaml |  4 ++++
 .../FiducialsCoordinateSystemDescription.yaml   |  4 ++++
 src/schema/terms/FiducialsCoordinateUnits.yaml  |  4 ++++
 src/schema/terms/FiducialsCoordinates.yaml      |  4 ++++
 src/schema/terms/FiducialsDescription.yaml      |  4 ++++
 src/schema/terms/FlipAngle.yaml                 |  4 ++++
 src/schema/terms/Funding.yaml                   |  4 ++++
 src/schema/terms/GradientSetType.yaml           |  4 ++++
 .../terms/HardcopyDeviceSoftwareVersion.yaml    |  4 ++++
 src/schema/terms/HardwareFilters.yaml           |  4 ++++
 src/schema/terms/HeadCircumference.yaml         |  4 ++++
 src/schema/terms/HeadCoilCoordinateSystem.yaml  |  4 ++++
 .../HeadCoilCoordinateSystemDescription.yaml    |  4 ++++
 src/schema/terms/HeadCoilCoordinateUnits.yaml   |  4 ++++
 src/schema/terms/HeadCoilCoordinates.yaml       |  4 ++++
 src/schema/terms/HeadCoilFrequency.yaml         |  4 ++++
 src/schema/terms/HowToAcknowledge.yaml          |  4 ++++
 src/schema/terms/InstitutionAddress.yaml        |  4 ++++
 src/schema/terms/InstitutionName.yaml           |  4 ++++
 .../terms/InstitutionalDepartmentName.yaml      |  4 ++++
 src/schema/terms/Instructions.yaml              |  4 ++++
 src/schema/terms/IntendedFor.yaml               |  4 ++++
 src/schema/terms/InversionTime.yaml             |  4 ++++
 src/schema/terms/License.yaml                   |  4 ++++
 src/schema/terms/MEGChannelCount.yaml           |  4 ++++
 src/schema/terms/MEGCoordinateSystem.yaml       |  4 ++++
 .../terms/MEGCoordinateSystemDescription.yaml   |  4 ++++
 src/schema/terms/MEGCoordinateUnits.yaml        |  4 ++++
 src/schema/terms/MEGREFChannelCount.yaml        |  4 ++++
 src/schema/terms/MRTransmitCoilSequence.yaml    |  4 ++++
 src/schema/terms/MagneticFieldStrength.yaml     |  4 ++++
 src/schema/terms/Manufacturer.yaml              |  3 +--
 src/schema/terms/ManufacturersModelName.yaml    |  4 ++++
 src/schema/terms/MatrixCoilMode.yaml            |  4 ++++
 src/schema/terms/MaxMovement.yaml               |  4 ++++
 src/schema/terms/MiscChannelCount.yaml          |  4 ++++
 .../terms/MultibandAccelerationFactor.yaml      |  4 ++++
 src/schema/terms/Name.yaml                      |  4 ++++
 src/schema/terms/NegativeContrast.yaml          |  4 ++++
 .../terms/NonlinearGradientCorrection.yaml      |  4 ++++
 .../NumberOfVolumesDiscardedByScanner.yaml      |  4 ++++
 .../terms/NumberOfVolumesDiscardedByUser.yaml   |  4 ++++
 src/schema/terms/NumberShots.yaml               |  4 ++++
 .../Proton density.yaml => terms/PD.yaml}       |  2 +-
 .../Combined PD-T2.yaml => terms/PDT2.yaml}     |  2 +-
 .../PDmap.yaml}                                 |  2 +-
 .../terms/ParallelAcquisitionTechnique.yaml     |  4 ++++
 .../terms/ParallelReductionFactorInPlane.yaml   |  4 ++++
 src/schema/terms/PartialFourier.yaml            |  4 ++++
 src/schema/terms/PartialFourierDirection.yaml   |  4 ++++
 src/schema/terms/PhaseEncodingDirection.yaml    |  4 ++++
 src/schema/terms/PowerLineFrequency.yaml        |  4 ++++
 src/schema/terms/PulseSequenceDetails.yaml      |  4 ++++
 src/schema/terms/PulseSequenceType.yaml         |  4 ++++
 src/schema/terms/ReceiveCoilActiveElements.yaml |  4 ++++
 src/schema/terms/ReceiveCoilName.yaml           |  4 ++++
 src/schema/terms/RecordingDuration.yaml         |  4 ++++
 src/schema/terms/RecordingType.yaml             |  4 ++++
 src/schema/terms/ReferencesAndLinks.yaml        |  4 ++++
 src/schema/terms/RepetitionTime.yaml            |  4 ++++
 .../{terms2 => terms}/SEEGChannelCount.yaml     |  2 +-
 src/schema/terms/SamplingFrequency.yaml         |  4 ++++
 src/schema/terms/ScanOptions.yaml               |  4 ++++
 src/schema/terms/ScanningSequence.yaml          |  4 ++++
 src/schema/terms/SequenceName.yaml              |  4 ++++
 src/schema/terms/SequenceVariant.yaml           |  4 ++++
 src/schema/terms/SliceEncodingDirection.yaml    |  4 ++++
 src/schema/terms/SliceTiming.yaml               |  4 ++++
 src/schema/terms/SoftwareFilters.yaml           |  4 ++++
 src/schema/terms/SoftwareVersions.yaml          |  4 ++++
 src/schema/terms/StartTime.yaml                 |  4 ++++
 src/schema/terms/StationName.yaml               |  4 ++++
 .../terms/SubjectArtefactDescription.yaml       |  4 ++++
 .../{terms2/T1 map.yaml => terms/T1map.yaml}    |  2 +-
 src/schema/terms/T1rho.yaml                     |  6 ++++++
 src/schema/terms/T1w.yaml                       | 17 ++---------------
 .../{terms2/T2 map.yaml => terms/T2map.yaml}    |  2 +-
 src/schema/terms/T2star.yaml                    |  4 ++++
 src/schema/terms/T2starmap.yaml                 |  4 ++++
 src/schema/terms/T2starw.yaml                   |  4 ++++
 src/schema/terms/T2w.yaml                       |  4 ++++
 src/schema/terms/TaskDescription.yaml           |  4 ++++
 src/schema/terms/TaskName.yaml                  |  4 ++++
 src/schema/terms/TotalReadoutTime.yaml          |  4 ++++
 src/schema/terms/TriggerChannelCount.yaml       |  4 ++++
 src/schema/terms/VolumeTiming.yaml              |  4 ++++
 src/schema/terms/anat.yaml                      |  1 -
 .../Angiography.yaml => terms/angio.yaml}       |  2 +-
 src/schema/terms/bold.yaml                      |  4 ++++
 src/schema/{terms2/CBV.yaml => terms/cbv.yaml}  |  2 +-
 src/schema/terms/dimension.yaml                 |  4 ++++
 src/schema/terms/duration.yaml                  |  4 ++++
 src/schema/terms/dwi.yaml                       |  4 ++++
 .../eeg.yaml}                                   |  0
 src/schema/terms/fmap.yaml                      |  4 ++++
 src/schema/terms/func.yaml                      |  4 ++++
 src/schema/terms/group.yaml                     |  4 ++++
 src/schema/terms/hemisphere.yaml                |  4 ++++
 src/schema/terms/high_cutoff.yaml               |  4 ++++
 .../iEEGCoordinateProcessingDescription.yaml    |  4 ++++
 .../iEEGCoordinateProcessingReference.yaml      |  4 ++++
 src/schema/terms/iEEGCoordinateSystem.yaml      |  4 ++++
 .../terms/iEEGCoordinateSystemDescription.yaml  |  4 ++++
 src/schema/terms/iEEGCoordinateUnits.yaml       |  4 ++++
 src/schema/terms/iEEGElectrodeGroups.yaml       |  4 ++++
 src/schema/terms/iEEGGround.yaml                |  4 ++++
 src/schema/terms/iEEGPlacementScheme.yaml       |  4 ++++
 src/schema/terms/iEEGReference.yaml             |  4 ++++
 .../ieeg.yaml}                                  |  2 +-
 src/schema/terms/impedance.yaml                 |  4 ++++
 .../Inplane T1.yaml => terms/inplaneT1.yaml}    |  0
 .../Inplane T2.yaml => terms/inplaneT2.yaml}    |  0
 src/schema/terms/low_cutoff.yaml                |  4 ++++
 src/schema/terms/material.yaml                  |  4 ++++
 .../meg.yaml}                                   |  2 +-
 src/schema/terms/notch.yaml                     |  4 ++++
 src/schema/terms/onset.yaml                     |  4 ++++
 src/schema/terms/phase.yaml                     |  4 ++++
 src/schema/terms/reference.yaml                 |  4 ++++
 src/schema/{terms2 => terms}/respiratory.yaml   |  0
 src/schema/terms/response_time.yaml             |  4 ++++
 src/schema/terms/sample.yaml                    |  4 ++++
 src/schema/terms/sampling_frequency.yaml        |  4 ++++
 src/schema/terms/size.yaml                      |  4 ++++
 src/schema/terms/software_filters.yaml          |  4 ++++
 src/schema/terms/status.yaml                    |  4 ++++
 src/schema/terms/status_description.yaml        |  4 ++++
 src/schema/terms/stim_file.yaml                 |  4 ++++
 src/schema/{terms2 => terms}/trial_type.yaml    |  0
 src/schema/{terms2 => terms}/type.yaml          |  0
 src/schema/terms2/AcquisitionDuration.yaml      |  4 ----
 .../AnatomicalLandmarkCoordinateSystem.yaml     |  4 ----
 ...icalLandmarkCoordinateSystemDescription.yaml |  4 ----
 .../AnatomicalLandmarkCoordinateUnits.yaml      |  4 ----
 .../terms2/AnatomicalLandmarkCoordinates.yaml   |  4 ----
 src/schema/terms2/AssociatedEmptyRoom.yaml      |  4 ----
 src/schema/terms2/Authors.yaml                  |  4 ----
 src/schema/terms2/BIDSVersion.yaml              |  4 ----
 src/schema/terms2/BOLD.yaml                     |  4 ----
 src/schema/terms2/CapManufacturer.yaml          |  4 ----
 .../terms2/CapManufacturersModelName.yaml       |  4 ----
 src/schema/terms2/CogAtlasID.yaml               |  4 ----
 src/schema/terms2/CogPOID.yaml                  |  4 ----
 src/schema/terms2/CoilCombinationMethod.yaml    |  4 ----
 src/schema/terms2/Columns.yaml                  |  4 ----
 .../terms2/ContinuousHeadLocalization.yaml      |  4 ----
 src/schema/terms2/DCOffsetCorrection.yaml       |  4 ----
 src/schema/terms2/DatasetDOI.yaml               |  4 ----
 src/schema/terms2/DelayAfterTrigger.yaml        |  4 ----
 src/schema/terms2/DelayTime.yaml                |  4 ----
 src/schema/terms2/DeviceSerialNumber.yaml       |  4 ----
 src/schema/terms2/DewarPosition.yaml            |  4 ----
 src/schema/terms2/DigitizedHeadPoints.yaml      |  4 ----
 .../DigitizedHeadPointsCoordinateSystem.yaml    |  4 ----
 ...edHeadPointsCoordinateSystemDescription.yaml |  4 ----
 .../DigitizedHeadPointsCoordinateUnits.yaml     |  4 ----
 src/schema/terms2/DigitizedLandmarks.yaml       |  4 ----
 src/schema/terms2/DwellTime.yaml                |  4 ----
 src/schema/terms2/EEGChannelCount.yaml          |  4 ----
 src/schema/terms2/EEGCoordinateSystem.yaml      |  4 ----
 .../terms2/EEGCoordinateSystemDescription.yaml  |  4 ----
 src/schema/terms2/EEGCoordinateUnits.yaml       |  4 ----
 src/schema/terms2/EEGGround.yaml                |  4 ----
 src/schema/terms2/EEGPlacementScheme.yaml       |  4 ----
 src/schema/terms2/EEGReference.yaml             |  4 ----
 src/schema/terms2/EchoTime.yaml                 |  4 ----
 src/schema/terms2/EffectiveEchoSpacing.yaml     |  4 ----
 src/schema/terms2/ElectricalStimulation.yaml    |  4 ----
 .../terms2/ElectricalStimulationParameters.yaml |  4 ----
 src/schema/terms2/ElectrodeManufacturer.yaml    |  4 ----
 .../terms2/ElectrodeManufacturersModelName.yaml |  4 ----
 src/schema/terms2/EpochLength.yaml              |  4 ----
 src/schema/terms2/FLAIR.yaml                    |  4 ----
 src/schema/terms2/FLASH.yaml                    |  4 ----
 .../terms2/FiducialsCoordinateSystem.yaml       |  4 ----
 .../FiducialsCoordinateSystemDescription.yaml   |  4 ----
 src/schema/terms2/FiducialsCoordinateUnits.yaml |  4 ----
 src/schema/terms2/FiducialsCoordinates.yaml     |  4 ----
 src/schema/terms2/FiducialsDescription.yaml     |  4 ----
 src/schema/terms2/FlipAngle.yaml                |  4 ----
 src/schema/terms2/Funding.yaml                  |  4 ----
 src/schema/terms2/GradientSetType.yaml          |  4 ----
 .../terms2/HardcopyDeviceSoftwareVersion.yaml   |  4 ----
 src/schema/terms2/HardwareFilters.yaml          |  4 ----
 src/schema/terms2/HeadCircumference.yaml        |  4 ----
 src/schema/terms2/HeadCoilCoordinateSystem.yaml |  4 ----
 .../HeadCoilCoordinateSystemDescription.yaml    |  4 ----
 src/schema/terms2/HeadCoilCoordinateUnits.yaml  |  4 ----
 src/schema/terms2/HeadCoilCoordinates.yaml      |  4 ----
 src/schema/terms2/HeadCoilFrequency.yaml        |  4 ----
 src/schema/terms2/HowToAcknowledge.yaml         |  4 ----
 src/schema/terms2/InstitutionAddress.yaml       |  4 ----
 src/schema/terms2/InstitutionName.yaml          |  4 ----
 .../terms2/InstitutionalDepartmentName.yaml     |  4 ----
 src/schema/terms2/Instructions.yaml             |  4 ----
 src/schema/terms2/IntendedFor.yaml              |  4 ----
 src/schema/terms2/InversionTime.yaml            |  4 ----
 src/schema/terms2/License.yaml                  |  4 ----
 src/schema/terms2/MEGChannelCount.yaml          |  4 ----
 src/schema/terms2/MEGCoordinateSystem.yaml      |  4 ----
 .../terms2/MEGCoordinateSystemDescription.yaml  |  4 ----
 src/schema/terms2/MEGCoordinateUnits.yaml       |  4 ----
 src/schema/terms2/MEGREFChannelCount.yaml       |  4 ----
 src/schema/terms2/MRTransmitCoilSequence.yaml   |  4 ----
 src/schema/terms2/MagneticFieldStrength.yaml    |  4 ----
 src/schema/terms2/Manufacturer.yaml             |  4 ----
 src/schema/terms2/ManufacturersModelName.yaml   |  4 ----
 src/schema/terms2/MatrixCoilMode.yaml           |  4 ----
 src/schema/terms2/MaxMovement.yaml              |  4 ----
 src/schema/terms2/MiscChannelCount.yaml         |  4 ----
 .../terms2/MultibandAccelerationFactor.yaml     |  4 ----
 src/schema/terms2/Name.yaml                     |  4 ----
 src/schema/terms2/NegativeContrast.yaml         |  4 ----
 .../terms2/NonlinearGradientCorrection.yaml     |  4 ----
 .../NumberOfVolumesDiscardedByScanner.yaml      |  4 ----
 .../terms2/NumberOfVolumesDiscardedByUser.yaml  |  4 ----
 src/schema/terms2/NumberShots.yaml              |  4 ----
 .../terms2/ParallelAcquisitionTechnique.yaml    |  4 ----
 .../terms2/ParallelReductionFactorInPlane.yaml  |  4 ----
 src/schema/terms2/PartialFourier.yaml           |  4 ----
 src/schema/terms2/PartialFourierDirection.yaml  |  4 ----
 src/schema/terms2/Phase.yaml                    |  4 ----
 src/schema/terms2/PhaseEncodingDirection.yaml   |  4 ----
 src/schema/terms2/PowerLineFrequency.yaml       |  4 ----
 src/schema/terms2/PulseSequenceDetails.yaml     |  4 ----
 src/schema/terms2/PulseSequenceType.yaml        |  4 ----
 .../terms2/ReceiveCoilActiveElements.yaml       |  4 ----
 src/schema/terms2/ReceiveCoilName.yaml          |  4 ----
 src/schema/terms2/RecordingDuration.yaml        |  4 ----
 src/schema/terms2/RecordingType.yaml            |  4 ----
 src/schema/terms2/ReferencesAndLinks.yaml       |  4 ----
 src/schema/terms2/RepetitionTime.yaml           |  4 ----
 src/schema/terms2/SamplingFrequency.yaml        |  4 ----
 src/schema/terms2/ScanOptions.yaml              |  4 ----
 src/schema/terms2/ScanningSequence.yaml         |  4 ----
 src/schema/terms2/SequenceName.yaml             |  4 ----
 src/schema/terms2/SequenceVariant.yaml          |  4 ----
 src/schema/terms2/SliceEncodingDirection.yaml   |  4 ----
 src/schema/terms2/SliceTiming.yaml              |  4 ----
 src/schema/terms2/SoftwareFilters.yaml          |  4 ----
 src/schema/terms2/SoftwareVersions.yaml         |  4 ----
 src/schema/terms2/StartTime.yaml                |  4 ----
 src/schema/terms2/StationName.yaml              |  4 ----
 .../terms2/SubjectArtefactDescription.yaml      |  4 ----
 src/schema/terms2/T1 Rho map.yaml               |  4 ----
 src/schema/terms2/T1 weighted.yaml              |  4 ----
 src/schema/terms2/T1w.yaml                      |  4 ----
 src/schema/terms2/T2 weighted.yaml              |  4 ----
 src/schema/terms2/T2*.yaml                      |  4 ----
 src/schema/terms2/T2w.yaml                      |  4 ----
 src/schema/terms2/TaskDescription.yaml          |  4 ----
 src/schema/terms2/TaskName.yaml                 |  4 ----
 src/schema/terms2/TotalReadoutTime.yaml         |  4 ----
 src/schema/terms2/TriggerChannelCount.yaml      |  4 ----
 src/schema/terms2/VolumeTiming.yaml             |  4 ----
 src/schema/terms2/dimension.yaml                |  4 ----
 src/schema/terms2/duration.yaml                 |  4 ----
 src/schema/terms2/group.yaml                    |  4 ----
 src/schema/terms2/hemisphere.yaml               |  4 ----
 src/schema/terms2/high_cutoff.yaml              |  4 ----
 .../iEEGCoordinateProcessingDescription.yaml    |  4 ----
 .../iEEGCoordinateProcessingReference.yaml      |  4 ----
 src/schema/terms2/iEEGCoordinateSystem.yaml     |  4 ----
 .../terms2/iEEGCoordinateSystemDescription.yaml |  4 ----
 src/schema/terms2/iEEGCoordinateUnits.yaml      |  4 ----
 src/schema/terms2/iEEGElectrodeGroups.yaml      |  4 ----
 src/schema/terms2/iEEGGround.yaml               |  4 ----
 src/schema/terms2/iEEGPlacementScheme.yaml      |  4 ----
 src/schema/terms2/iEEGReference.yaml            |  4 ----
 src/schema/terms2/impedance.yaml                |  4 ----
 src/schema/terms2/low_cutoff.yaml               |  4 ----
 src/schema/terms2/material.yaml                 |  4 ----
 src/schema/terms2/notch.yaml                    |  4 ----
 src/schema/terms2/onset.yaml                    |  4 ----
 src/schema/terms2/reference.yaml                |  4 ----
 src/schema/terms2/response_time.yaml            |  4 ----
 src/schema/terms2/sample.yaml                   |  4 ----
 src/schema/terms2/sampling_frequency.yaml       |  4 ----
 src/schema/terms2/size.yaml                     |  4 ----
 src/schema/terms2/software_filters.yaml         |  4 ----
 src/schema/terms2/status.yaml                   |  4 ----
 src/schema/terms2/status_description.yaml       |  4 ----
 src/schema/terms2/stim_file.yaml                |  4 ----
 333 files changed, 635 insertions(+), 645 deletions(-)
 rename src/schema/{terms2 => terms}/Acknowledgements.yaml (100%)
 create mode 100644 src/schema/terms/AcquisitionDuration.yaml
 create mode 100644 src/schema/terms/AnatomicalLandmarkCoordinateSystem.yaml
 create mode 100644 src/schema/terms/AnatomicalLandmarkCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms/AnatomicalLandmarkCoordinateUnits.yaml
 create mode 100644 src/schema/terms/AnatomicalLandmarkCoordinates.yaml
 create mode 100644 src/schema/terms/AssociatedEmptyRoom.yaml
 create mode 100644 src/schema/terms/Authors.yaml
 create mode 100644 src/schema/terms/BIDSVersion.yaml
 create mode 100644 src/schema/terms/CapManufacturer.yaml
 create mode 100644 src/schema/terms/CapManufacturersModelName.yaml
 create mode 100644 src/schema/terms/CogAtlasID.yaml
 create mode 100644 src/schema/terms/CogPOID.yaml
 create mode 100644 src/schema/terms/CoilCombinationMethod.yaml
 create mode 100644 src/schema/terms/Columns.yaml
 create mode 100644 src/schema/terms/ContinuousHeadLocalization.yaml
 create mode 100644 src/schema/terms/DCOffsetCorrection.yaml
 create mode 100644 src/schema/terms/DatasetDOI.yaml
 create mode 100644 src/schema/terms/DelayAfterTrigger.yaml
 create mode 100644 src/schema/terms/DelayTime.yaml
 rename src/schema/{terms2 => terms}/Derivative.yaml (100%)
 create mode 100644 src/schema/terms/DeviceSerialNumber.yaml
 create mode 100644 src/schema/terms/DewarPosition.yaml
 create mode 100644 src/schema/terms/DigitizedHeadPoints.yaml
 create mode 100644 src/schema/terms/DigitizedHeadPointsCoordinateSystem.yaml
 create mode 100644 src/schema/terms/DigitizedHeadPointsCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms/DigitizedHeadPointsCoordinateUnits.yaml
 create mode 100644 src/schema/terms/DigitizedLandmarks.yaml
 create mode 100644 src/schema/terms/DwellTime.yaml
 rename src/schema/{terms2 => terms}/ECGChannelCount.yaml (51%)
 rename src/schema/{terms2 => terms}/ECOGChannelCount.yaml (51%)
 create mode 100644 src/schema/terms/EEGChannelCount.yaml
 create mode 100644 src/schema/terms/EEGCoordinateSystem.yaml
 create mode 100644 src/schema/terms/EEGCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms/EEGCoordinateUnits.yaml
 create mode 100644 src/schema/terms/EEGGround.yaml
 create mode 100644 src/schema/terms/EEGPlacementScheme.yaml
 create mode 100644 src/schema/terms/EEGReference.yaml
 rename src/schema/{terms2 => terms}/EMGChannelCount.yaml (51%)
 rename src/schema/{terms2 => terms}/EOGChannelCount.yaml (51%)
 create mode 100644 src/schema/terms/EchoTime.yaml
 create mode 100644 src/schema/terms/EffectiveEchoSpacing.yaml
 create mode 100644 src/schema/terms/ElectricalStimulation.yaml
 create mode 100644 src/schema/terms/ElectricalStimulationParameters.yaml
 create mode 100644 src/schema/terms/ElectrodeManufacturer.yaml
 create mode 100644 src/schema/terms/ElectrodeManufacturersModelName.yaml
 create mode 100644 src/schema/terms/EpochLength.yaml
 create mode 100644 src/schema/terms/FLAIR.yaml
 create mode 100644 src/schema/terms/FLASH.yaml
 create mode 100644 src/schema/terms/FiducialsCoordinateSystem.yaml
 create mode 100644 src/schema/terms/FiducialsCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms/FiducialsCoordinateUnits.yaml
 create mode 100644 src/schema/terms/FiducialsCoordinates.yaml
 create mode 100644 src/schema/terms/FiducialsDescription.yaml
 create mode 100644 src/schema/terms/FlipAngle.yaml
 create mode 100644 src/schema/terms/Funding.yaml
 create mode 100644 src/schema/terms/GradientSetType.yaml
 create mode 100644 src/schema/terms/HardcopyDeviceSoftwareVersion.yaml
 create mode 100644 src/schema/terms/HardwareFilters.yaml
 create mode 100644 src/schema/terms/HeadCircumference.yaml
 create mode 100644 src/schema/terms/HeadCoilCoordinateSystem.yaml
 create mode 100644 src/schema/terms/HeadCoilCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms/HeadCoilCoordinateUnits.yaml
 create mode 100644 src/schema/terms/HeadCoilCoordinates.yaml
 create mode 100644 src/schema/terms/HeadCoilFrequency.yaml
 create mode 100644 src/schema/terms/HowToAcknowledge.yaml
 create mode 100644 src/schema/terms/InstitutionAddress.yaml
 create mode 100644 src/schema/terms/InstitutionName.yaml
 create mode 100644 src/schema/terms/InstitutionalDepartmentName.yaml
 create mode 100644 src/schema/terms/Instructions.yaml
 create mode 100644 src/schema/terms/IntendedFor.yaml
 create mode 100644 src/schema/terms/InversionTime.yaml
 create mode 100644 src/schema/terms/License.yaml
 create mode 100644 src/schema/terms/MEGChannelCount.yaml
 create mode 100644 src/schema/terms/MEGCoordinateSystem.yaml
 create mode 100644 src/schema/terms/MEGCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms/MEGCoordinateUnits.yaml
 create mode 100644 src/schema/terms/MEGREFChannelCount.yaml
 create mode 100644 src/schema/terms/MRTransmitCoilSequence.yaml
 create mode 100644 src/schema/terms/MagneticFieldStrength.yaml
 create mode 100644 src/schema/terms/ManufacturersModelName.yaml
 create mode 100644 src/schema/terms/MatrixCoilMode.yaml
 create mode 100644 src/schema/terms/MaxMovement.yaml
 create mode 100644 src/schema/terms/MiscChannelCount.yaml
 create mode 100644 src/schema/terms/MultibandAccelerationFactor.yaml
 create mode 100644 src/schema/terms/Name.yaml
 create mode 100644 src/schema/terms/NegativeContrast.yaml
 create mode 100644 src/schema/terms/NonlinearGradientCorrection.yaml
 create mode 100644 src/schema/terms/NumberOfVolumesDiscardedByScanner.yaml
 create mode 100644 src/schema/terms/NumberOfVolumesDiscardedByUser.yaml
 create mode 100644 src/schema/terms/NumberShots.yaml
 rename src/schema/{terms2/Proton density.yaml => terms/PD.yaml} (64%)
 rename src/schema/{terms2/Combined PD-T2.yaml => terms/PDT2.yaml} (70%)
 rename src/schema/{terms2/Proton density map.yaml => terms/PDmap.yaml} (67%)
 create mode 100644 src/schema/terms/ParallelAcquisitionTechnique.yaml
 create mode 100644 src/schema/terms/ParallelReductionFactorInPlane.yaml
 create mode 100644 src/schema/terms/PartialFourier.yaml
 create mode 100644 src/schema/terms/PartialFourierDirection.yaml
 create mode 100644 src/schema/terms/PhaseEncodingDirection.yaml
 create mode 100644 src/schema/terms/PowerLineFrequency.yaml
 create mode 100644 src/schema/terms/PulseSequenceDetails.yaml
 create mode 100644 src/schema/terms/PulseSequenceType.yaml
 create mode 100644 src/schema/terms/ReceiveCoilActiveElements.yaml
 create mode 100644 src/schema/terms/ReceiveCoilName.yaml
 create mode 100644 src/schema/terms/RecordingDuration.yaml
 create mode 100644 src/schema/terms/RecordingType.yaml
 create mode 100644 src/schema/terms/ReferencesAndLinks.yaml
 create mode 100644 src/schema/terms/RepetitionTime.yaml
 rename src/schema/{terms2 => terms}/SEEGChannelCount.yaml (51%)
 create mode 100644 src/schema/terms/SamplingFrequency.yaml
 create mode 100644 src/schema/terms/ScanOptions.yaml
 create mode 100644 src/schema/terms/ScanningSequence.yaml
 create mode 100644 src/schema/terms/SequenceName.yaml
 create mode 100644 src/schema/terms/SequenceVariant.yaml
 create mode 100644 src/schema/terms/SliceEncodingDirection.yaml
 create mode 100644 src/schema/terms/SliceTiming.yaml
 create mode 100644 src/schema/terms/SoftwareFilters.yaml
 create mode 100644 src/schema/terms/SoftwareVersions.yaml
 create mode 100644 src/schema/terms/StartTime.yaml
 create mode 100644 src/schema/terms/StationName.yaml
 create mode 100644 src/schema/terms/SubjectArtefactDescription.yaml
 rename src/schema/{terms2/T1 map.yaml => terms/T1map.yaml} (59%)
 create mode 100644 src/schema/terms/T1rho.yaml
 rename src/schema/{terms2/T2 map.yaml => terms/T2map.yaml} (59%)
 create mode 100644 src/schema/terms/T2star.yaml
 create mode 100644 src/schema/terms/T2starmap.yaml
 create mode 100644 src/schema/terms/T2starw.yaml
 create mode 100644 src/schema/terms/T2w.yaml
 create mode 100644 src/schema/terms/TaskDescription.yaml
 create mode 100644 src/schema/terms/TaskName.yaml
 create mode 100644 src/schema/terms/TotalReadoutTime.yaml
 create mode 100644 src/schema/terms/TriggerChannelCount.yaml
 create mode 100644 src/schema/terms/VolumeTiming.yaml
 rename src/schema/{terms2/Angiography.yaml => terms/angio.yaml} (72%)
 create mode 100644 src/schema/terms/bold.yaml
 rename src/schema/{terms2/CBV.yaml => terms/cbv.yaml} (53%)
 create mode 100644 src/schema/terms/dimension.yaml
 create mode 100644 src/schema/terms/duration.yaml
 create mode 100644 src/schema/terms/dwi.yaml
 rename src/schema/{terms2/Electroencephalography.yaml => terms/eeg.yaml} (100%)
 create mode 100644 src/schema/terms/fmap.yaml
 create mode 100644 src/schema/terms/func.yaml
 create mode 100644 src/schema/terms/group.yaml
 create mode 100644 src/schema/terms/hemisphere.yaml
 create mode 100644 src/schema/terms/high_cutoff.yaml
 create mode 100644 src/schema/terms/iEEGCoordinateProcessingDescription.yaml
 create mode 100644 src/schema/terms/iEEGCoordinateProcessingReference.yaml
 create mode 100644 src/schema/terms/iEEGCoordinateSystem.yaml
 create mode 100644 src/schema/terms/iEEGCoordinateSystemDescription.yaml
 create mode 100644 src/schema/terms/iEEGCoordinateUnits.yaml
 create mode 100644 src/schema/terms/iEEGElectrodeGroups.yaml
 create mode 100644 src/schema/terms/iEEGGround.yaml
 create mode 100644 src/schema/terms/iEEGPlacementScheme.yaml
 create mode 100644 src/schema/terms/iEEGReference.yaml
 rename src/schema/{terms2/Intracranial Electroencephalography.yaml => terms/ieeg.yaml} (57%)
 create mode 100644 src/schema/terms/impedance.yaml
 rename src/schema/{terms2/Inplane T1.yaml => terms/inplaneT1.yaml} (100%)
 rename src/schema/{terms2/Inplane T2.yaml => terms/inplaneT2.yaml} (100%)
 create mode 100644 src/schema/terms/low_cutoff.yaml
 create mode 100644 src/schema/terms/material.yaml
 rename src/schema/{terms2/Magnetoencephalography.yaml => terms/meg.yaml} (60%)
 create mode 100644 src/schema/terms/notch.yaml
 create mode 100644 src/schema/terms/onset.yaml
 create mode 100644 src/schema/terms/phase.yaml
 create mode 100644 src/schema/terms/reference.yaml
 rename src/schema/{terms2 => terms}/respiratory.yaml (100%)
 create mode 100644 src/schema/terms/response_time.yaml
 create mode 100644 src/schema/terms/sample.yaml
 create mode 100644 src/schema/terms/sampling_frequency.yaml
 create mode 100644 src/schema/terms/size.yaml
 create mode 100644 src/schema/terms/software_filters.yaml
 create mode 100644 src/schema/terms/status.yaml
 create mode 100644 src/schema/terms/status_description.yaml
 create mode 100644 src/schema/terms/stim_file.yaml
 rename src/schema/{terms2 => terms}/trial_type.yaml (100%)
 rename src/schema/{terms2 => terms}/type.yaml (100%)
 delete mode 100644 src/schema/terms2/AcquisitionDuration.yaml
 delete mode 100644 src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml
 delete mode 100644 src/schema/terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml
 delete mode 100644 src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml
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diff --git a/src/schema/terms/.nii.gz.yaml b/src/schema/terms/.nii.gz.yaml
index 88424623b8..97e0e6d9b5 100644
--- a/src/schema/terms/.nii.gz.yaml
+++ b/src/schema/terms/.nii.gz.yaml
@@ -1,5 +1,4 @@
 ---
 name: Gzipped Nifti
-class: extension
 description: |
   A gzipped nifti file.
diff --git a/src/schema/terms2/Acknowledgements.yaml b/src/schema/terms/Acknowledgements.yaml
similarity index 100%
rename from src/schema/terms2/Acknowledgements.yaml
rename to src/schema/terms/Acknowledgements.yaml
diff --git a/src/schema/terms/AcquisitionDuration.yaml b/src/schema/terms/AcquisitionDuration.yaml
new file mode 100644
index 0000000000..db3761feb8
--- /dev/null
+++ b/src/schema/terms/AcquisitionDuration.yaml
@@ -0,0 +1,4 @@
+---
+name: AcquisitionDuration
+description: |
+  Duration (in seconds) of volume acquisition. Corresponds to DICOM Tag 0018,9073 Acquisition Duration. This field is REQUIRED for sequences that are described with the VolumeTiming field and that not have the SliceTiming field set to allowed for accurate calculation of acquisition time. This field is mutually exclusive with RepetitionTime.
diff --git a/src/schema/terms/AnatomicalLandmarkCoordinateSystem.yaml b/src/schema/terms/AnatomicalLandmarkCoordinateSystem.yaml
new file mode 100644
index 0000000000..bf9f81e9d5
--- /dev/null
+++ b/src/schema/terms/AnatomicalLandmarkCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: AnatomicalLandmarkCoordinateSystem
+description: |
+  Defines the coordinate system for the anatomical landmarks. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in AnatomicalLandmarkCoordinateSystemDescription.
diff --git a/src/schema/terms/AnatomicalLandmarkCoordinateSystemDescription.yaml b/src/schema/terms/AnatomicalLandmarkCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..aaacb29dd6
--- /dev/null
+++ b/src/schema/terms/AnatomicalLandmarkCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: AnatomicalLandmarkCoordinateSystemDescription
+description: |
+  Freeform text description or link to document describing the Head Coil coordinate system system in detail.
diff --git a/src/schema/terms/AnatomicalLandmarkCoordinateUnits.yaml b/src/schema/terms/AnatomicalLandmarkCoordinateUnits.yaml
new file mode 100644
index 0000000000..65c422b9d4
--- /dev/null
+++ b/src/schema/terms/AnatomicalLandmarkCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: AnatomicalLandmarkCoordinateUnits
+description: |
+  Units of the coordinates of AnatomicalLandmarkCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms/AnatomicalLandmarkCoordinates.yaml b/src/schema/terms/AnatomicalLandmarkCoordinates.yaml
new file mode 100644
index 0000000000..1174567740
--- /dev/null
+++ b/src/schema/terms/AnatomicalLandmarkCoordinates.yaml
@@ -0,0 +1,4 @@
+---
+name: AnatomicalLandmarkCoordinates
+description: |
+  Key:value pairs of the labels and 3-D digitized locations of anatomical landmarks, interpreted following the AnatomicalLandmarkCoordinateSystem, e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}.
diff --git a/src/schema/terms/AssociatedEmptyRoom.yaml b/src/schema/terms/AssociatedEmptyRoom.yaml
new file mode 100644
index 0000000000..98a3f72c5b
--- /dev/null
+++ b/src/schema/terms/AssociatedEmptyRoom.yaml
@@ -0,0 +1,4 @@
+---
+name: AssociatedEmptyRoom
+description: |
+  Relative path in BIDS folder structure to empty-room file associated with the subject's MEG recording. The path needs to use forward slashes instead of backward slashes (e.g. sub-emptyroom/ses-/meg/sub-emptyroom/ses-task-noise/run-meg.ds).
diff --git a/src/schema/terms/Authors.yaml b/src/schema/terms/Authors.yaml
new file mode 100644
index 0000000000..5e6c6bbc7d
--- /dev/null
+++ b/src/schema/terms/Authors.yaml
@@ -0,0 +1,4 @@
+---
+name: Authors
+description: |
+  List of individuals who contributed to the creation/curation of the dataset.
diff --git a/src/schema/terms/BIDSVersion.yaml b/src/schema/terms/BIDSVersion.yaml
new file mode 100644
index 0000000000..e2f456851c
--- /dev/null
+++ b/src/schema/terms/BIDSVersion.yaml
@@ -0,0 +1,4 @@
+---
+name: BIDSVersion
+description: |
+  The version of the BIDS standard that was used.
diff --git a/src/schema/terms/CapManufacturer.yaml b/src/schema/terms/CapManufacturer.yaml
new file mode 100644
index 0000000000..d65b53a30c
--- /dev/null
+++ b/src/schema/terms/CapManufacturer.yaml
@@ -0,0 +1,4 @@
+---
+name: CapManufacturer
+description: |
+  Manufacturer of the EEG cap (e.g. EasyCap)
diff --git a/src/schema/terms/CapManufacturersModelName.yaml b/src/schema/terms/CapManufacturersModelName.yaml
new file mode 100644
index 0000000000..62d0647952
--- /dev/null
+++ b/src/schema/terms/CapManufacturersModelName.yaml
@@ -0,0 +1,4 @@
+---
+name: CapManufacturersModelName
+description: |
+  Manufacturer's designation of the EEG cap model (e.g., M10)
diff --git a/src/schema/terms/CogAtlasID.yaml b/src/schema/terms/CogAtlasID.yaml
new file mode 100644
index 0000000000..fcbf79f3cb
--- /dev/null
+++ b/src/schema/terms/CogAtlasID.yaml
@@ -0,0 +1,4 @@
+---
+name: CogAtlasID
+description: |
+  URL of the corresponding Cognitive Atlas Task term.
diff --git a/src/schema/terms/CogPOID.yaml b/src/schema/terms/CogPOID.yaml
new file mode 100644
index 0000000000..d7d001ee4e
--- /dev/null
+++ b/src/schema/terms/CogPOID.yaml
@@ -0,0 +1,4 @@
+---
+name: CogPOID
+description: |
+  URL of the corresponding CogPO term.
diff --git a/src/schema/terms/CoilCombinationMethod.yaml b/src/schema/terms/CoilCombinationMethod.yaml
new file mode 100644
index 0000000000..0889abce8c
--- /dev/null
+++ b/src/schema/terms/CoilCombinationMethod.yaml
@@ -0,0 +1,4 @@
+---
+name: CoilCombinationMethod
+description: |
+  Almost all fMRI studies using phased-array coils use root-sum-of-squares (rSOS) combination, but other methods exist. The image reconstruction is changed by the coil combination method (as for the matrix coil mode above), so anything non-standard should be reported
diff --git a/src/schema/terms/Columns.yaml b/src/schema/terms/Columns.yaml
new file mode 100644
index 0000000000..66e1b3f1ff
--- /dev/null
+++ b/src/schema/terms/Columns.yaml
@@ -0,0 +1,4 @@
+---
+name: Columns
+description: |
+  Names of columns in file.
diff --git a/src/schema/terms/ContinuousHeadLocalization.yaml b/src/schema/terms/ContinuousHeadLocalization.yaml
new file mode 100644
index 0000000000..846ee3e231
--- /dev/null
+++ b/src/schema/terms/ContinuousHeadLocalization.yaml
@@ -0,0 +1,4 @@
+---
+name: ContinuousHeadLocalization
+description: |
+  Boolean (true or false) value indicating whether continuous head localisation was performed.
diff --git a/src/schema/terms/DCOffsetCorrection.yaml b/src/schema/terms/DCOffsetCorrection.yaml
new file mode 100644
index 0000000000..91f2633ba7
--- /dev/null
+++ b/src/schema/terms/DCOffsetCorrection.yaml
@@ -0,0 +1,4 @@
+---
+name: DCOffsetCorrection
+description: |
+  A description of the method (if any) used to correct for a DC offset. If the method used was subtracting the mean value for each channel, use mean.
diff --git a/src/schema/terms/DatasetDOI.yaml b/src/schema/terms/DatasetDOI.yaml
new file mode 100644
index 0000000000..c2285cf98f
--- /dev/null
+++ b/src/schema/terms/DatasetDOI.yaml
@@ -0,0 +1,4 @@
+---
+name: DatasetDOI
+description: |
+  The Document Object Identifier of the dataset (not the corresponding paper).
diff --git a/src/schema/terms/DelayAfterTrigger.yaml b/src/schema/terms/DelayAfterTrigger.yaml
new file mode 100644
index 0000000000..753467bb4a
--- /dev/null
+++ b/src/schema/terms/DelayAfterTrigger.yaml
@@ -0,0 +1,4 @@
+---
+name: DelayAfterTrigger
+description: |
+  Duration (in seconds) from trigger delivery to scan onset. This delay is commonly caused by adjustments and loading times. This specification is entirely independent of NumberOfVolumesDiscardedByScanner or NumberOfVolumesDiscardedByUser, as the delay precedes the acquisition.
diff --git a/src/schema/terms/DelayTime.yaml b/src/schema/terms/DelayTime.yaml
new file mode 100644
index 0000000000..82011a2904
--- /dev/null
+++ b/src/schema/terms/DelayTime.yaml
@@ -0,0 +1,4 @@
+---
+name: DelayTime
+description: |
+  User specified time (in seconds) to delay the acquisition of data for the following volume. If the field is not present it is assumed to be set to zero. Corresponds to Siemens CSA header field lDelayTimeInTR. This field is REQUIRED for sparse sequences using the RepetitionTime field that do not have the SliceTiming field set to allowed for accurate calculation of acquisition time. This field is mutually exclusive with VolumeTiming.
diff --git a/src/schema/terms2/Derivative.yaml b/src/schema/terms/Derivative.yaml
similarity index 100%
rename from src/schema/terms2/Derivative.yaml
rename to src/schema/terms/Derivative.yaml
diff --git a/src/schema/terms/DeviceSerialNumber.yaml b/src/schema/terms/DeviceSerialNumber.yaml
new file mode 100644
index 0000000000..85c29a567f
--- /dev/null
+++ b/src/schema/terms/DeviceSerialNumber.yaml
@@ -0,0 +1,4 @@
+---
+name: DeviceSerialNumber
+description: |
+  The serial number of the equipment that produced the composite instances. Corresponds to DICOM Tag 0018, 1000 DeviceSerialNumber. A pseudonym can also be used to prevent the equipment from being identifiable, so long as each pseudonym is unique within the dataset
diff --git a/src/schema/terms/DewarPosition.yaml b/src/schema/terms/DewarPosition.yaml
new file mode 100644
index 0000000000..98b5008f13
--- /dev/null
+++ b/src/schema/terms/DewarPosition.yaml
@@ -0,0 +1,4 @@
+---
+name: DewarPosition
+description: |
+  Position of the dewar during the MEG scan: upright, supine or degrees of angle from vertical: for example on CTF systems, upright=15 degrees, supine = 90 degrees.
diff --git a/src/schema/terms/DigitizedHeadPoints.yaml b/src/schema/terms/DigitizedHeadPoints.yaml
new file mode 100644
index 0000000000..4c94703478
--- /dev/null
+++ b/src/schema/terms/DigitizedHeadPoints.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedHeadPoints
+description: |
+  Relative path to the file containing the locations of digitized head points collected during the session (e.g., sub-01_headshape.pos). RECOMMENDED for all MEG systems, especially for CTF and BTi/4D. For Elekta/Neuromag the head points will be stored in the fif file.
diff --git a/src/schema/terms/DigitizedHeadPointsCoordinateSystem.yaml b/src/schema/terms/DigitizedHeadPointsCoordinateSystem.yaml
new file mode 100644
index 0000000000..25f3b14e98
--- /dev/null
+++ b/src/schema/terms/DigitizedHeadPointsCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedHeadPointsCoordinateSystem
+description: |
+  Defines the coordinate system for the digitized head points. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in DigitizedHeadPointsCoordinateSystemDescription.
diff --git a/src/schema/terms/DigitizedHeadPointsCoordinateSystemDescription.yaml b/src/schema/terms/DigitizedHeadPointsCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..b9c2d5c31b
--- /dev/null
+++ b/src/schema/terms/DigitizedHeadPointsCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedHeadPointsCoordinateSystemDescription
+description: |
+  Freeform text description or link to document describing the Digitized head Points coordinate system system in detail.
diff --git a/src/schema/terms/DigitizedHeadPointsCoordinateUnits.yaml b/src/schema/terms/DigitizedHeadPointsCoordinateUnits.yaml
new file mode 100644
index 0000000000..8536666f0a
--- /dev/null
+++ b/src/schema/terms/DigitizedHeadPointsCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedHeadPointsCoordinateUnits
+description: |
+  Units of the coordinates of DigitizedHeadPointsCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms/DigitizedLandmarks.yaml b/src/schema/terms/DigitizedLandmarks.yaml
new file mode 100644
index 0000000000..26837bedbe
--- /dev/null
+++ b/src/schema/terms/DigitizedLandmarks.yaml
@@ -0,0 +1,4 @@
+---
+name: DigitizedLandmarks
+description: |
+  Boolean (true or false) value indicating whether anatomical landmark points (i.e. fiducials) are contained within this recording.
diff --git a/src/schema/terms/DwellTime.yaml b/src/schema/terms/DwellTime.yaml
new file mode 100644
index 0000000000..f1b43bcf11
--- /dev/null
+++ b/src/schema/terms/DwellTime.yaml
@@ -0,0 +1,4 @@
+---
+name: DwellTime
+description: |
+  Actual dwell time (in seconds) of the receiver per point in the readout direction, including any oversampling. For Siemens, this corresponds to DICOM field (0019,1018) (in ns). This value is necessary for the optional readout distortion correction of anatomicals in the HCP Pipelines. It also usefully provides a handle on the readout bandwidth, which isn’t captured in the other metadata tags. Not to be confused with EffectiveEchoSpacing, and the frequent mislabeling of echo spacing (which is spacing in the phase encoding direction) as dwell time (which is spacing in the readout direction).
diff --git a/src/schema/terms2/ECGChannelCount.yaml b/src/schema/terms/ECGChannelCount.yaml
similarity index 51%
rename from src/schema/terms2/ECGChannelCount.yaml
rename to src/schema/terms/ECGChannelCount.yaml
index 4ad92027ad..1a6476f3ce 100644
--- a/src/schema/terms2/ECGChannelCount.yaml
+++ b/src/schema/terms/ECGChannelCount.yaml
@@ -1,4 +1,4 @@
 ---
 name: ECGChannelCount
 description: |
-  RECOMMENDED. Number of ECG channels.
+  Number of ECG channels.
diff --git a/src/schema/terms2/ECOGChannelCount.yaml b/src/schema/terms/ECOGChannelCount.yaml
similarity index 51%
rename from src/schema/terms2/ECOGChannelCount.yaml
rename to src/schema/terms/ECOGChannelCount.yaml
index fbc68977a8..fc95a770cf 100644
--- a/src/schema/terms2/ECOGChannelCount.yaml
+++ b/src/schema/terms/ECOGChannelCount.yaml
@@ -1,4 +1,4 @@
 ---
 name: ECOGChannelCount
 description: |
-  RECOMMENDED. Number of ECoG channels
+  Number of ECoG channels
diff --git a/src/schema/terms/EEGChannelCount.yaml b/src/schema/terms/EEGChannelCount.yaml
new file mode 100644
index 0000000000..19a97fbba0
--- /dev/null
+++ b/src/schema/terms/EEGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGChannelCount
+description: |
+  Number of EEG channels included in the recording (e.g., 128).
diff --git a/src/schema/terms/EEGCoordinateSystem.yaml b/src/schema/terms/EEGCoordinateSystem.yaml
new file mode 100644
index 0000000000..467ff09555
--- /dev/null
+++ b/src/schema/terms/EEGCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGCoordinateSystem
+description: |
+  Describes how the coordinates of the EEG sensors are to be interpreted.
diff --git a/src/schema/terms/EEGCoordinateSystemDescription.yaml b/src/schema/terms/EEGCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..6ae53eb307
--- /dev/null
+++ b/src/schema/terms/EEGCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGCoordinateSystemDescription
+description: |
+  Freeform text description or link to document describing the EEG coordinate system system in detail.
diff --git a/src/schema/terms/EEGCoordinateUnits.yaml b/src/schema/terms/EEGCoordinateUnits.yaml
new file mode 100644
index 0000000000..cacbbf5ea4
--- /dev/null
+++ b/src/schema/terms/EEGCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGCoordinateUnits
+description: |
+  Units of the coordinates of EEGCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms/EEGGround.yaml b/src/schema/terms/EEGGround.yaml
new file mode 100644
index 0000000000..e98fc70d59
--- /dev/null
+++ b/src/schema/terms/EEGGround.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGGround
+description: |
+  Description of the location of the ground electrode (e.g., placed on right mastoid (M2)).
diff --git a/src/schema/terms/EEGPlacementScheme.yaml b/src/schema/terms/EEGPlacementScheme.yaml
new file mode 100644
index 0000000000..58f1957e94
--- /dev/null
+++ b/src/schema/terms/EEGPlacementScheme.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGPlacementScheme
+description: |
+  Placement scheme of EEG electrodes. Either the name of a standardized placement system (e.g., 10-20) or a list of standardized electrode names (e.g., [Cz, Pz]).
diff --git a/src/schema/terms/EEGReference.yaml b/src/schema/terms/EEGReference.yaml
new file mode 100644
index 0000000000..c2a941d12e
--- /dev/null
+++ b/src/schema/terms/EEGReference.yaml
@@ -0,0 +1,4 @@
+---
+name: EEGReference
+description: |
+  Description of the type of EEG reference used (e.g., M1 for left mastoid, average, or longitudinal bipolar).
diff --git a/src/schema/terms2/EMGChannelCount.yaml b/src/schema/terms/EMGChannelCount.yaml
similarity index 51%
rename from src/schema/terms2/EMGChannelCount.yaml
rename to src/schema/terms/EMGChannelCount.yaml
index 18d4ee86f7..1e28eeb019 100644
--- a/src/schema/terms2/EMGChannelCount.yaml
+++ b/src/schema/terms/EMGChannelCount.yaml
@@ -1,4 +1,4 @@
 ---
 name: EMGChannelCount
 description: |
-  RECOMMENDED. Number of EMG channels.
+  Number of EMG channels.
diff --git a/src/schema/terms2/EOGChannelCount.yaml b/src/schema/terms/EOGChannelCount.yaml
similarity index 51%
rename from src/schema/terms2/EOGChannelCount.yaml
rename to src/schema/terms/EOGChannelCount.yaml
index 69a3211fcd..72ed5390a3 100644
--- a/src/schema/terms2/EOGChannelCount.yaml
+++ b/src/schema/terms/EOGChannelCount.yaml
@@ -1,4 +1,4 @@
 ---
 name: EOGChannelCount
 description: |
-  RECOMMENDED. Number of EOG channels.
+  Number of EOG channels.
diff --git a/src/schema/terms/EchoTime.yaml b/src/schema/terms/EchoTime.yaml
new file mode 100644
index 0000000000..196376f01c
--- /dev/null
+++ b/src/schema/terms/EchoTime.yaml
@@ -0,0 +1,4 @@
+---
+name: EchoTime
+description: |
+  The echo time (TE) for the acquisition, specified in seconds. This parameter is REQUIRED if corresponding fieldmap data is present or the data comes from a multi echo sequence. Corresponds to DICOM Tag 0018, 0081 Echo Time(please note that the DICOM term is in milliseconds not seconds).
diff --git a/src/schema/terms/EffectiveEchoSpacing.yaml b/src/schema/terms/EffectiveEchoSpacing.yaml
new file mode 100644
index 0000000000..0d731780ab
--- /dev/null
+++ b/src/schema/terms/EffectiveEchoSpacing.yaml
@@ -0,0 +1,4 @@
+---
+name: EffectiveEchoSpacing
+description: |
+  The effective sampling interval, specified in seconds, between lines in the phase-encoding direction, defined based on the size of the reconstructed image in the phase direction. It is frequently, but incorrectly, referred to as dwell time (see DwellTime parameter below for actual dwell time). It is required for unwarping distortions using field maps. Note that beyond just in-plane acceleration, a variety of other manipulations to the phase encoding need to be accounted for properly, including partial fourier, phase oversampling, phase resolution, phase field-of-view and interpolation.2This parameter is REQUIRED if corresponding fieldmap data is present.
diff --git a/src/schema/terms/ElectricalStimulation.yaml b/src/schema/terms/ElectricalStimulation.yaml
new file mode 100644
index 0000000000..ef0c0a454a
--- /dev/null
+++ b/src/schema/terms/ElectricalStimulation.yaml
@@ -0,0 +1,4 @@
+---
+name: ElectricalStimulation
+description: |
+  Boolean field to specify if electrical stimulation was done during the recording (options are true or false). Parameters for event-like stimulation should be specified in the events.tsv file (see example below).
diff --git a/src/schema/terms/ElectricalStimulationParameters.yaml b/src/schema/terms/ElectricalStimulationParameters.yaml
new file mode 100644
index 0000000000..d81313a098
--- /dev/null
+++ b/src/schema/terms/ElectricalStimulationParameters.yaml
@@ -0,0 +1,4 @@
+---
+name: ElectricalStimulationParameters
+description: |
+  Free form description of stimulation parameters, such as frequency, shape etc. Specific onsets can be specified in the events.tsv file. Specific shapes can be described here in freeform text.
diff --git a/src/schema/terms/ElectrodeManufacturer.yaml b/src/schema/terms/ElectrodeManufacturer.yaml
new file mode 100644
index 0000000000..4c731edcc4
--- /dev/null
+++ b/src/schema/terms/ElectrodeManufacturer.yaml
@@ -0,0 +1,4 @@
+---
+name: ElectrodeManufacturer
+description: |
+  Can be used if all electrodes are of the same manufacturer (e.g., AD-TECH, DIXI). If electrodes of different manufacturers are used, please use the corresponding table in the _electrodes.tsv file.
diff --git a/src/schema/terms/ElectrodeManufacturersModelName.yaml b/src/schema/terms/ElectrodeManufacturersModelName.yaml
new file mode 100644
index 0000000000..e5c7565067
--- /dev/null
+++ b/src/schema/terms/ElectrodeManufacturersModelName.yaml
@@ -0,0 +1,4 @@
+---
+name: ElectrodeManufacturersModelName
+description: |
+  If different electrode types are used, please use the corresponding table in the electrodes.tsv file.
diff --git a/src/schema/terms/EpochLength.yaml b/src/schema/terms/EpochLength.yaml
new file mode 100644
index 0000000000..ead6b8b018
--- /dev/null
+++ b/src/schema/terms/EpochLength.yaml
@@ -0,0 +1,4 @@
+---
+name: EpochLength
+description: |
+  Duration of individual epochs in seconds (e.g. 1) in case of epoched data
diff --git a/src/schema/terms/FLAIR.yaml b/src/schema/terms/FLAIR.yaml
new file mode 100644
index 0000000000..7d8f0e1a3c
--- /dev/null
+++ b/src/schema/terms/FLAIR.yaml
@@ -0,0 +1,4 @@
+---
+name: FLAIR
+description: |
+  Fluid-attenuated inversion recovery (FLAIR)
diff --git a/src/schema/terms/FLASH.yaml b/src/schema/terms/FLASH.yaml
new file mode 100644
index 0000000000..f8d5b50307
--- /dev/null
+++ b/src/schema/terms/FLASH.yaml
@@ -0,0 +1,4 @@
+---
+name: FLASH
+description: |
+  Fast low angle shot magnetic resonance imaging (FLASH MRI)
diff --git a/src/schema/terms/FiducialsCoordinateSystem.yaml b/src/schema/terms/FiducialsCoordinateSystem.yaml
new file mode 100644
index 0000000000..adeb536aff
--- /dev/null
+++ b/src/schema/terms/FiducialsCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsCoordinateSystem
+description: |
+  Refers to the coordinate space to which the landmarks positions are to be interpreted - preferably the same as the EEGCoordinateSystem.
diff --git a/src/schema/terms/FiducialsCoordinateSystemDescription.yaml b/src/schema/terms/FiducialsCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..239b195641
--- /dev/null
+++ b/src/schema/terms/FiducialsCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsCoordinateSystemDescription
+description: |
+  Free-form text description of the coordinate system. May also include a link to a documentation page or paper describing the system in greater detail.
diff --git a/src/schema/terms/FiducialsCoordinateUnits.yaml b/src/schema/terms/FiducialsCoordinateUnits.yaml
new file mode 100644
index 0000000000..7cc66dc45c
--- /dev/null
+++ b/src/schema/terms/FiducialsCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsCoordinateUnits
+description: |
+  Units in which the coordinates that are listed in the field AnatomicalLandmarkCoordinateSystem are represented (e.g., mm, cm).
diff --git a/src/schema/terms/FiducialsCoordinates.yaml b/src/schema/terms/FiducialsCoordinates.yaml
new file mode 100644
index 0000000000..89d87553d6
--- /dev/null
+++ b/src/schema/terms/FiducialsCoordinates.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsCoordinates
+description: |
+  Key:value pairs of the labels and 3-D digitized position of anatomical landmarks, interpreted following the FiducialsCoordinateSystem (e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}).
diff --git a/src/schema/terms/FiducialsDescription.yaml b/src/schema/terms/FiducialsDescription.yaml
new file mode 100644
index 0000000000..2b7da708ba
--- /dev/null
+++ b/src/schema/terms/FiducialsDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: FiducialsDescription
+description: |
+  A freeform text field documenting the anatomical landmarks that were used and how the head localization coils were placed relative to these. This field can describe, for instance, whether the true anatomical locations of the left and right pre-auricular points were used and digitized, or rather whether they were defined as the intersection between the tragus and the helix (the entry of the ear canal), or any other anatomical description of selected points in the vicinity of the ears.
diff --git a/src/schema/terms/FlipAngle.yaml b/src/schema/terms/FlipAngle.yaml
new file mode 100644
index 0000000000..09e2aa054e
--- /dev/null
+++ b/src/schema/terms/FlipAngle.yaml
@@ -0,0 +1,4 @@
+---
+name: FlipAngle
+description: |
+  Flip angle for the acquisition, specified in degrees. Corresponds to: DICOM Tag 0018, 1314 Flip Angle.
diff --git a/src/schema/terms/Funding.yaml b/src/schema/terms/Funding.yaml
new file mode 100644
index 0000000000..eb9dd750a2
--- /dev/null
+++ b/src/schema/terms/Funding.yaml
@@ -0,0 +1,4 @@
+---
+name: Funding
+description: |
+  List of sources of funding (grant numbers)
diff --git a/src/schema/terms/GradientSetType.yaml b/src/schema/terms/GradientSetType.yaml
new file mode 100644
index 0000000000..52390c2ec1
--- /dev/null
+++ b/src/schema/terms/GradientSetType.yaml
@@ -0,0 +1,4 @@
+---
+name: GradientSetType
+description: |
+  It should be possible to infer the gradient coil from the scanner model. If not, e.g. because of a custom upgrade or use of a gradient insert set, then the specifications of the actual gradient coil should be reported independently
diff --git a/src/schema/terms/HardcopyDeviceSoftwareVersion.yaml b/src/schema/terms/HardcopyDeviceSoftwareVersion.yaml
new file mode 100644
index 0000000000..eeaef7c6b7
--- /dev/null
+++ b/src/schema/terms/HardcopyDeviceSoftwareVersion.yaml
@@ -0,0 +1,4 @@
+---
+name: HardcopyDeviceSoftwareVersion
+description: |
+  Manufacturer’s designation of the software of the device that created this Hardcopy Image (the printer). Corresponds to DICOM Tag 0018, 101A Hardcopy Device Software Version
diff --git a/src/schema/terms/HardwareFilters.yaml b/src/schema/terms/HardwareFilters.yaml
new file mode 100644
index 0000000000..04035c45e2
--- /dev/null
+++ b/src/schema/terms/HardwareFilters.yaml
@@ -0,0 +1,4 @@
+---
+name: HardwareFilters
+description: |
+  List of temporal hardware filters applied. Ideally key:value pairs of pre-applied hardware filters and their parameter values: e.g., {HardwareFilters: {Highpass RC filter: {Half amplitude cutoff (Hz): 0.0159, Roll-off: 6dB/Octave}}}. Write n/a if no hardware filters applied.
diff --git a/src/schema/terms/HeadCircumference.yaml b/src/schema/terms/HeadCircumference.yaml
new file mode 100644
index 0000000000..cfa5b6a1be
--- /dev/null
+++ b/src/schema/terms/HeadCircumference.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCircumference
+description: |
+  Circumference of the participant's head, expressed in cm (e.g., 58).
diff --git a/src/schema/terms/HeadCoilCoordinateSystem.yaml b/src/schema/terms/HeadCoilCoordinateSystem.yaml
new file mode 100644
index 0000000000..cab5a40a37
--- /dev/null
+++ b/src/schema/terms/HeadCoilCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilCoordinateSystem
+description: |
+  Defines the coordinate system for the coils. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in HeadCoilCoordinateSystemDescription.
diff --git a/src/schema/terms/HeadCoilCoordinateSystemDescription.yaml b/src/schema/terms/HeadCoilCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..4feb2ae7cd
--- /dev/null
+++ b/src/schema/terms/HeadCoilCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilCoordinateSystemDescription
+description: |
+  Freeform text description or link to document describing the Head Coil coordinate system system in detail.
diff --git a/src/schema/terms/HeadCoilCoordinateUnits.yaml b/src/schema/terms/HeadCoilCoordinateUnits.yaml
new file mode 100644
index 0000000000..63187612ac
--- /dev/null
+++ b/src/schema/terms/HeadCoilCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilCoordinateUnits
+description: |
+  Units of the coordinates of HeadCoilCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms/HeadCoilCoordinates.yaml b/src/schema/terms/HeadCoilCoordinates.yaml
new file mode 100644
index 0000000000..f6be57bbb3
--- /dev/null
+++ b/src/schema/terms/HeadCoilCoordinates.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilCoordinates
+description: |
+  Key:value pairs describing head localization coil labels and their coordinates, interpreted following the HeadCoilCoordinateSystem, e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}. Note that coils are not always placed at locations that have a known anatomical name (e.g. for Elekta, Yokogawa systems); in that case generic labels can be used (e.g. {coil1: [12.2,21.3,12.3], coil2: [6.7,12.3,8.6], coil3: [21.9,11.0,8.1]} ).
diff --git a/src/schema/terms/HeadCoilFrequency.yaml b/src/schema/terms/HeadCoilFrequency.yaml
new file mode 100644
index 0000000000..6db6d51e77
--- /dev/null
+++ b/src/schema/terms/HeadCoilFrequency.yaml
@@ -0,0 +1,4 @@
+---
+name: HeadCoilFrequency
+description: |
+  List of frequencies (in Hz) used by the head localisation coils (HLC in CTF systems, HPI in Elekta, COH in BTi/4D) that track the subject’s head position in the MEG helmet (e.g. [293, 307, 314, 321])
diff --git a/src/schema/terms/HowToAcknowledge.yaml b/src/schema/terms/HowToAcknowledge.yaml
new file mode 100644
index 0000000000..6f36bb2949
--- /dev/null
+++ b/src/schema/terms/HowToAcknowledge.yaml
@@ -0,0 +1,4 @@
+---
+name: HowToAcknowledge
+description: |
+  Instructions how researchers using this dataset should acknowledge the original authors. This field can also be used to define a publication that should be cited in publications that use the dataset.
diff --git a/src/schema/terms/InstitutionAddress.yaml b/src/schema/terms/InstitutionAddress.yaml
new file mode 100644
index 0000000000..622abc4df4
--- /dev/null
+++ b/src/schema/terms/InstitutionAddress.yaml
@@ -0,0 +1,4 @@
+---
+name: InstitutionAddress
+description: |
+  The address of the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 0081 InstitutionAddress.
diff --git a/src/schema/terms/InstitutionName.yaml b/src/schema/terms/InstitutionName.yaml
new file mode 100644
index 0000000000..1797485896
--- /dev/null
+++ b/src/schema/terms/InstitutionName.yaml
@@ -0,0 +1,4 @@
+---
+name: InstitutionName
+description: |
+  The name of the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 0080 InstitutionName.
diff --git a/src/schema/terms/InstitutionalDepartmentName.yaml b/src/schema/terms/InstitutionalDepartmentName.yaml
new file mode 100644
index 0000000000..1f2f7891f7
--- /dev/null
+++ b/src/schema/terms/InstitutionalDepartmentName.yaml
@@ -0,0 +1,4 @@
+---
+name: InstitutionalDepartmentName
+description: |
+  The department in the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 1040 Institutional Department Name.
diff --git a/src/schema/terms/Instructions.yaml b/src/schema/terms/Instructions.yaml
new file mode 100644
index 0000000000..83018145e4
--- /dev/null
+++ b/src/schema/terms/Instructions.yaml
@@ -0,0 +1,4 @@
+---
+name: Instructions
+description: |
+  Text of the instructions given to participants before the scan. This is especially important in context of resting state fMRI and distinguishing between eyes open and eyes closed paradigms.
diff --git a/src/schema/terms/IntendedFor.yaml b/src/schema/terms/IntendedFor.yaml
new file mode 100644
index 0000000000..1dc1f7c616
--- /dev/null
+++ b/src/schema/terms/IntendedFor.yaml
@@ -0,0 +1,4 @@
+---
+name: IntendedFor
+description: |
+  Path or list of path relative to the subject subfolder pointing to the structural MRI, possibly of different types if a list is specified, to be used with the MEG recording. The path(s) need(s) to use forward slashes instead of backward slashes (e.g. ses-/anat/sub-01_T1w.nii.gz).
diff --git a/src/schema/terms/InversionTime.yaml b/src/schema/terms/InversionTime.yaml
new file mode 100644
index 0000000000..63c7214a68
--- /dev/null
+++ b/src/schema/terms/InversionTime.yaml
@@ -0,0 +1,4 @@
+---
+name: InversionTime
+description: |
+  The inversion time (TI) for the acquisition, specified in seconds. Inversion time is the time after the middle of inverting RF pulse to middle of excitation pulse to detect the amount of longitudinal magnetization. Corresponds to DICOM Tag 0018, 0082 Inversion Time (please note that the DICOM term is in milliseconds not seconds).
diff --git a/src/schema/terms/License.yaml b/src/schema/terms/License.yaml
new file mode 100644
index 0000000000..348906a945
--- /dev/null
+++ b/src/schema/terms/License.yaml
@@ -0,0 +1,4 @@
+---
+name: License
+description: |
+  What license is this dataset distributed under? The use of license name abbreviations is suggested for specifying a license. A list of common licenses with suggested abbreviations can be found in Appendix II.
diff --git a/src/schema/terms/MEGChannelCount.yaml b/src/schema/terms/MEGChannelCount.yaml
new file mode 100644
index 0000000000..8039c369c0
--- /dev/null
+++ b/src/schema/terms/MEGChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGChannelCount
+description: |
+  Number of MEG channels (e.g. 275)
diff --git a/src/schema/terms/MEGCoordinateSystem.yaml b/src/schema/terms/MEGCoordinateSystem.yaml
new file mode 100644
index 0000000000..0cf1841a7d
--- /dev/null
+++ b/src/schema/terms/MEGCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGCoordinateSystem
+description: |
+  Defines the coordinate system for the MEG sensors. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in [MEGCoordinateSystemDescription].
diff --git a/src/schema/terms/MEGCoordinateSystemDescription.yaml b/src/schema/terms/MEGCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..43c21e3055
--- /dev/null
+++ b/src/schema/terms/MEGCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGCoordinateSystemDescription
+description: |
+  Freeform text description or link to document describing the MEG coordinate system system in detail.
diff --git a/src/schema/terms/MEGCoordinateUnits.yaml b/src/schema/terms/MEGCoordinateUnits.yaml
new file mode 100644
index 0000000000..b8b32f45b5
--- /dev/null
+++ b/src/schema/terms/MEGCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGCoordinateUnits
+description: |
+  Units of the coordinates of MEGCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms/MEGREFChannelCount.yaml b/src/schema/terms/MEGREFChannelCount.yaml
new file mode 100644
index 0000000000..70ac41c11d
--- /dev/null
+++ b/src/schema/terms/MEGREFChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: MEGREFChannelCount
+description: |
+  Number of MEG reference channels (e.g. 23). For systems without such channels (e.g. Neuromag Vectorview), MEGREFChannelCount=0
diff --git a/src/schema/terms/MRTransmitCoilSequence.yaml b/src/schema/terms/MRTransmitCoilSequence.yaml
new file mode 100644
index 0000000000..d7ac19d715
--- /dev/null
+++ b/src/schema/terms/MRTransmitCoilSequence.yaml
@@ -0,0 +1,4 @@
+---
+name: MRTransmitCoilSequence
+description: |
+  This is a relevant field if a non-standard transmit coil is used. Corresponds to DICOM Tag 0018, 9049 MR Transmit Coil Sequence
diff --git a/src/schema/terms/MagneticFieldStrength.yaml b/src/schema/terms/MagneticFieldStrength.yaml
new file mode 100644
index 0000000000..75bbc4d125
--- /dev/null
+++ b/src/schema/terms/MagneticFieldStrength.yaml
@@ -0,0 +1,4 @@
+---
+name: MagneticFieldStrength
+description: |
+  Nominal field strength of MR magnet in Tesla. Corresponds to DICOM Tag 0018,0087 Magnetic Field Strength
diff --git a/src/schema/terms/Manufacturer.yaml b/src/schema/terms/Manufacturer.yaml
index b87952f8de..651a3c0467 100644
--- a/src/schema/terms/Manufacturer.yaml
+++ b/src/schema/terms/Manufacturer.yaml
@@ -1,6 +1,5 @@
 ---
 name: Manufacturer
-class: metadata
 description: |
   Manufacturer of the equipment that produced the composite instances.
-  Corresponds to DICOM Tag 0008, 0070 `Manufacturer`.
+  Corresponds to DICOM Tag 0008, 0070 Manufacturer
diff --git a/src/schema/terms/ManufacturersModelName.yaml b/src/schema/terms/ManufacturersModelName.yaml
new file mode 100644
index 0000000000..57f904cd9c
--- /dev/null
+++ b/src/schema/terms/ManufacturersModelName.yaml
@@ -0,0 +1,4 @@
+---
+name: ManufacturersModelName
+description: |
+  Manufacturer's model name of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 1090 Manufacturers Model Name
diff --git a/src/schema/terms/MatrixCoilMode.yaml b/src/schema/terms/MatrixCoilMode.yaml
new file mode 100644
index 0000000000..6e735a9273
--- /dev/null
+++ b/src/schema/terms/MatrixCoilMode.yaml
@@ -0,0 +1,4 @@
+---
+name: MatrixCoilMode
+description: |
+  (If used) A method for reducing the number of independent channels by combining in analog the signals from multiple coil elements. There are typically different default modes when using un-accelerated or accelerated (e.g. GRAPPA, SENSE) imaging
diff --git a/src/schema/terms/MaxMovement.yaml b/src/schema/terms/MaxMovement.yaml
new file mode 100644
index 0000000000..0f8395d201
--- /dev/null
+++ b/src/schema/terms/MaxMovement.yaml
@@ -0,0 +1,4 @@
+---
+name: MaxMovement
+description: |
+  Maximum head movement (in mm) detected during the recording, as measured by the head localisation coils (e.g., 4.8)
diff --git a/src/schema/terms/MiscChannelCount.yaml b/src/schema/terms/MiscChannelCount.yaml
new file mode 100644
index 0000000000..7f5b13d47e
--- /dev/null
+++ b/src/schema/terms/MiscChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: MiscChannelCount
+description: |
+  Number of miscellaneous analog channels for auxiliary signals.
diff --git a/src/schema/terms/MultibandAccelerationFactor.yaml b/src/schema/terms/MultibandAccelerationFactor.yaml
new file mode 100644
index 0000000000..12ee4a905f
--- /dev/null
+++ b/src/schema/terms/MultibandAccelerationFactor.yaml
@@ -0,0 +1,4 @@
+---
+name: MultibandAccelerationFactor
+description: |
+  The multiband factor, for multiband acquisitions.
diff --git a/src/schema/terms/Name.yaml b/src/schema/terms/Name.yaml
new file mode 100644
index 0000000000..6be6ca259b
--- /dev/null
+++ b/src/schema/terms/Name.yaml
@@ -0,0 +1,4 @@
+---
+name: Name
+description: |
+  Name of the dataset.
diff --git a/src/schema/terms/NegativeContrast.yaml b/src/schema/terms/NegativeContrast.yaml
new file mode 100644
index 0000000000..1b80d85bc9
--- /dev/null
+++ b/src/schema/terms/NegativeContrast.yaml
@@ -0,0 +1,4 @@
+---
+name: NegativeContrast
+description: |
+  Boolean (true or false) value specifying whether increasing voxel intensity (within sample voxels) denotes a decreased value with respect to the contrast suffix. This is commonly the case when Cerebral Blood Volume is estimated via usage of a contrast agent in conjunction with a T2* weighted acquisition protocol.
diff --git a/src/schema/terms/NonlinearGradientCorrection.yaml b/src/schema/terms/NonlinearGradientCorrection.yaml
new file mode 100644
index 0000000000..af5b23ac05
--- /dev/null
+++ b/src/schema/terms/NonlinearGradientCorrection.yaml
@@ -0,0 +1,4 @@
+---
+name: NonlinearGradientCorrection
+description: |
+  Boolean stating if the image saved has been corrected for gradient nonlinearities by the scanner sequence.
diff --git a/src/schema/terms/NumberOfVolumesDiscardedByScanner.yaml b/src/schema/terms/NumberOfVolumesDiscardedByScanner.yaml
new file mode 100644
index 0000000000..085c9a6df6
--- /dev/null
+++ b/src/schema/terms/NumberOfVolumesDiscardedByScanner.yaml
@@ -0,0 +1,4 @@
+---
+name: NumberOfVolumesDiscardedByScanner
+description: |
+  Number of volumes (dummy scans) discarded by the scanner (as opposed to those discarded by the user post hoc) before saving the imaging file. For example, a sequence that automatically discards the first 4 volumes before saving would have this field as 4. A sequence that doesn't discard dummy scans would have this set to 0. Please note that the onsets recorded in the event.tsv file should always refer to the beginning of the acquisition of the first volume in the corresponding imaging file - independent of the value of NumberOfVolumesDiscardedByScanner field.
diff --git a/src/schema/terms/NumberOfVolumesDiscardedByUser.yaml b/src/schema/terms/NumberOfVolumesDiscardedByUser.yaml
new file mode 100644
index 0000000000..14d1530d52
--- /dev/null
+++ b/src/schema/terms/NumberOfVolumesDiscardedByUser.yaml
@@ -0,0 +1,4 @@
+---
+name: NumberOfVolumesDiscardedByUser
+description: |
+  Number of volumes (also known as dummy scans) discarded by the user before including the file in the dataset. If possible, including all of the volumes is strongly recommended. Please note that the onsets recorded in the event.tsv file should always refer to the beginning of the acquisition of the first volume in the corresponding imaging file - independent of the value of NumberOfVolumesDiscardedByUser field.
diff --git a/src/schema/terms/NumberShots.yaml b/src/schema/terms/NumberShots.yaml
new file mode 100644
index 0000000000..e1f9277805
--- /dev/null
+++ b/src/schema/terms/NumberShots.yaml
@@ -0,0 +1,4 @@
+---
+name: NumberShots
+description: |
+  The number of RF excitations need to reconstruct a slice or volume. Please mind that this is not the same as Echo Train Length which denotes the number of lines of k-space collected after an excitation.
diff --git a/src/schema/terms2/Proton density.yaml b/src/schema/terms/PD.yaml
similarity index 64%
rename from src/schema/terms2/Proton density.yaml
rename to src/schema/terms/PD.yaml
index 8163512fe1..322fb2697d 100644
--- a/src/schema/terms2/Proton density.yaml	
+++ b/src/schema/terms/PD.yaml
@@ -1,4 +1,4 @@
 ---
 name: Proton density
 description: |
-  PD
+  Proton density map.
diff --git a/src/schema/terms2/Combined PD-T2.yaml b/src/schema/terms/PDT2.yaml
similarity index 70%
rename from src/schema/terms2/Combined PD-T2.yaml
rename to src/schema/terms/PDT2.yaml
index 2b498ddfa3..aa876f7a00 100644
--- a/src/schema/terms2/Combined PD-T2.yaml	
+++ b/src/schema/terms/PDT2.yaml
@@ -1,4 +1,4 @@
 ---
 name: Combined PD/T2
 description: |
-  PDT2
+  Combined PD/T2
diff --git a/src/schema/terms2/Proton density map.yaml b/src/schema/terms/PDmap.yaml
similarity index 67%
rename from src/schema/terms2/Proton density map.yaml
rename to src/schema/terms/PDmap.yaml
index 935d6f28c2..a7ba4956cd 100644
--- a/src/schema/terms2/Proton density map.yaml	
+++ b/src/schema/terms/PDmap.yaml
@@ -1,4 +1,4 @@
 ---
 name: Proton density map
 description: |
-  PDmap
+  Proton density map
diff --git a/src/schema/terms/ParallelAcquisitionTechnique.yaml b/src/schema/terms/ParallelAcquisitionTechnique.yaml
new file mode 100644
index 0000000000..13c9d55da8
--- /dev/null
+++ b/src/schema/terms/ParallelAcquisitionTechnique.yaml
@@ -0,0 +1,4 @@
+---
+name: ParallelAcquisitionTechnique
+description: |
+  The type of parallel imaging used (e.g. GRAPPA, SENSE). Corresponds to DICOM Tag 0018, 9078 Parallel Acquisition Technique.
diff --git a/src/schema/terms/ParallelReductionFactorInPlane.yaml b/src/schema/terms/ParallelReductionFactorInPlane.yaml
new file mode 100644
index 0000000000..035edd411d
--- /dev/null
+++ b/src/schema/terms/ParallelReductionFactorInPlane.yaml
@@ -0,0 +1,4 @@
+---
+name: ParallelReductionFactorInPlane
+description: |
+  The parallel imaging (e.g, GRAPPA) factor. Use the denominator of the fraction of k-space encoded for each slice. For example, 2 means half of k-space is encoded. Corresponds to DICOM Tag 0018, 9069 Parallel Reduction Factor In-plane.
diff --git a/src/schema/terms/PartialFourier.yaml b/src/schema/terms/PartialFourier.yaml
new file mode 100644
index 0000000000..8dce35521c
--- /dev/null
+++ b/src/schema/terms/PartialFourier.yaml
@@ -0,0 +1,4 @@
+---
+name: PartialFourier
+description: |
+  The fraction of partial Fourier information collected. Corresponds to DICOM Tag 0018, 9081 Partial Fourier.
diff --git a/src/schema/terms/PartialFourierDirection.yaml b/src/schema/terms/PartialFourierDirection.yaml
new file mode 100644
index 0000000000..3e4e9df224
--- /dev/null
+++ b/src/schema/terms/PartialFourierDirection.yaml
@@ -0,0 +1,4 @@
+---
+name: PartialFourierDirection
+description: |
+  The direction where only partial Fourier information was collected. Corresponds to DICOM Tag 0018, 9036 Partial Fourier Direction.
diff --git a/src/schema/terms/PhaseEncodingDirection.yaml b/src/schema/terms/PhaseEncodingDirection.yaml
new file mode 100644
index 0000000000..7080796924
--- /dev/null
+++ b/src/schema/terms/PhaseEncodingDirection.yaml
@@ -0,0 +1,4 @@
+---
+name: PhaseEncodingDirection
+description: |
+  Possible values: i, j, k, i-, j- k-. The letters i, j, kcorrespond to the first, second and third axis of the data in the NIFTI file. The polarity of the phase encoding is assumed to go from zero index to maximum index unless - sign is present (then the order is reversed - starting from the highest index instead of zero). PhaseEncodingDirection is defined as the direction along which phase is was modulated which may result in visible distortions. Note that this is not the same as the DICOM term InPlanePhaseEncodingDirection which can have ROW or COL values. This parameter is REQUIRED if corresponding fieldmap data is present or when using multiple runs with different phase encoding directions (which can be later used for field inhomogeneity correction).
diff --git a/src/schema/terms/PowerLineFrequency.yaml b/src/schema/terms/PowerLineFrequency.yaml
new file mode 100644
index 0000000000..f0280c6971
--- /dev/null
+++ b/src/schema/terms/PowerLineFrequency.yaml
@@ -0,0 +1,4 @@
+---
+name: PowerLineFrequency
+description: |
+  Frequency (in Hz) of the power grid at the geographical location of the MEG instrument (i.e. 50 or 60)
diff --git a/src/schema/terms/PulseSequenceDetails.yaml b/src/schema/terms/PulseSequenceDetails.yaml
new file mode 100644
index 0000000000..fa22357f37
--- /dev/null
+++ b/src/schema/terms/PulseSequenceDetails.yaml
@@ -0,0 +1,4 @@
+---
+name: PulseSequenceDetails
+description: |
+  Information beyond pulse sequence type that identifies the specific pulse sequence used (i.e. Standard Siemens Sequence distributed with the VB17 software, Siemens WIP ### version #.##, or Sequence written by X using a version compiled on MM/DD/YYYY).
diff --git a/src/schema/terms/PulseSequenceType.yaml b/src/schema/terms/PulseSequenceType.yaml
new file mode 100644
index 0000000000..913e8c9452
--- /dev/null
+++ b/src/schema/terms/PulseSequenceType.yaml
@@ -0,0 +1,4 @@
+---
+name: PulseSequenceType
+description: |
+  A general description of the pulse sequence used for the scan (i.e. MPRAGE, Gradient Echo EPI, Spin Echo EPI, Multiband gradient echo EPI).
diff --git a/src/schema/terms/ReceiveCoilActiveElements.yaml b/src/schema/terms/ReceiveCoilActiveElements.yaml
new file mode 100644
index 0000000000..86b00b28af
--- /dev/null
+++ b/src/schema/terms/ReceiveCoilActiveElements.yaml
@@ -0,0 +1,4 @@
+---
+name: ReceiveCoilActiveElements
+description: |
+  Information describing the active/selected elements of the receiver coil. This doesn’t correspond to a tag in the DICOM ontology. The vendor-defined terminology for active coil elements can go in this field. As an example, for Siemens, coil channels are typically not activated/selected individually, but rather in pre-defined selectable groups of individual channels, and the list of the groups of elements that are active/selected in any given scan populates the Coil String entry in Siemens’ private DICOM fields (e.g., HEA;HEP for the Siemens standard 32 ch coil when both the anterior and posterior groups are activated). This is a flexible field that can be used as most appropriate for a given vendor and coil to define the active coil elements. Since individual scans can sometimes not have the intended coil elements selected, it is preferable for this field to be populated directly from the DICOM for each individual scan, so that it can be used as a mechanism for checking that a given scan was collected with the intended coil elements selected
diff --git a/src/schema/terms/ReceiveCoilName.yaml b/src/schema/terms/ReceiveCoilName.yaml
new file mode 100644
index 0000000000..93eabb461b
--- /dev/null
+++ b/src/schema/terms/ReceiveCoilName.yaml
@@ -0,0 +1,4 @@
+---
+name: ReceiveCoilName
+description: |
+  Information describing the receiver coil. Corresponds to DICOM Tag 0018, 1250 Receive Coil Name, although not all vendors populate that DICOM Tag, in which case this field can be derived from an appropriate private DICOM field
diff --git a/src/schema/terms/RecordingDuration.yaml b/src/schema/terms/RecordingDuration.yaml
new file mode 100644
index 0000000000..dc08679160
--- /dev/null
+++ b/src/schema/terms/RecordingDuration.yaml
@@ -0,0 +1,4 @@
+---
+name: RecordingDuration
+description: |
+  Length of the recording in seconds (e.g. 3600)
diff --git a/src/schema/terms/RecordingType.yaml b/src/schema/terms/RecordingType.yaml
new file mode 100644
index 0000000000..3eea1b91a5
--- /dev/null
+++ b/src/schema/terms/RecordingType.yaml
@@ -0,0 +1,4 @@
+---
+name: RecordingType
+description: |
+  Defines whether the recording is continuous or epoched; this latter limited to time windows about events of interest (e.g., stimulus presentations, subject responses etc.)
diff --git a/src/schema/terms/ReferencesAndLinks.yaml b/src/schema/terms/ReferencesAndLinks.yaml
new file mode 100644
index 0000000000..6fbda91c2d
--- /dev/null
+++ b/src/schema/terms/ReferencesAndLinks.yaml
@@ -0,0 +1,4 @@
+---
+name: ReferencesAndLinks
+description: |
+  List of references to publication that contain information on the dataset, or links.
diff --git a/src/schema/terms/RepetitionTime.yaml b/src/schema/terms/RepetitionTime.yaml
new file mode 100644
index 0000000000..fa8ae65ee3
--- /dev/null
+++ b/src/schema/terms/RepetitionTime.yaml
@@ -0,0 +1,4 @@
+---
+name: RepetitionTime
+description: |
+  The time in seconds between the beginning of an acquisition of one volume and the beginning of acquisition of the volume following it (TR). Please note that this definition includes time between scans (when no data has been acquired) in case of sparse acquisition schemes. This value needs to be consistent with the pixdim[4] field (after accounting for units stored in xyzt units field) in the NIfTI header. This field is mutually exclusive with VolumeTiming and is derived from DICOM Tag 0018, 0080 and converted to seconds.
diff --git a/src/schema/terms2/SEEGChannelCount.yaml b/src/schema/terms/SEEGChannelCount.yaml
similarity index 51%
rename from src/schema/terms2/SEEGChannelCount.yaml
rename to src/schema/terms/SEEGChannelCount.yaml
index 7af14157c8..32edd2b52b 100644
--- a/src/schema/terms2/SEEGChannelCount.yaml
+++ b/src/schema/terms/SEEGChannelCount.yaml
@@ -1,4 +1,4 @@
 ---
 name: SEEGChannelCount
 description: |
-  RECOMMENDED. Number of SEEG channels
+  Number of SEEG channels
diff --git a/src/schema/terms/SamplingFrequency.yaml b/src/schema/terms/SamplingFrequency.yaml
new file mode 100644
index 0000000000..05ebb48eca
--- /dev/null
+++ b/src/schema/terms/SamplingFrequency.yaml
@@ -0,0 +1,4 @@
+---
+name: SamplingFrequency
+description: |
+  Sampling frequency (in Hz) of all the data in the recording, regardless of their type (e.g., 2400)
diff --git a/src/schema/terms/ScanOptions.yaml b/src/schema/terms/ScanOptions.yaml
new file mode 100644
index 0000000000..3dfa1ca1fe
--- /dev/null
+++ b/src/schema/terms/ScanOptions.yaml
@@ -0,0 +1,4 @@
+---
+name: ScanOptions
+description: |
+  Parameters of ScanningSequence. Corresponds to DICOM Tag 0018, 0022 Scan Options.
diff --git a/src/schema/terms/ScanningSequence.yaml b/src/schema/terms/ScanningSequence.yaml
new file mode 100644
index 0000000000..5256d9a977
--- /dev/null
+++ b/src/schema/terms/ScanningSequence.yaml
@@ -0,0 +1,4 @@
+---
+name: ScanningSequence
+description: |
+  Description of the type of data acquired. Corresponds to DICOM Tag 0018, 0020 Scanning Sequence.
diff --git a/src/schema/terms/SequenceName.yaml b/src/schema/terms/SequenceName.yaml
new file mode 100644
index 0000000000..dfa846f993
--- /dev/null
+++ b/src/schema/terms/SequenceName.yaml
@@ -0,0 +1,4 @@
+---
+name: SequenceName
+description: |
+  Manufacturer’s designation of the sequence name. Corresponds to DICOM Tag 0018, 0024 Sequence Name.
diff --git a/src/schema/terms/SequenceVariant.yaml b/src/schema/terms/SequenceVariant.yaml
new file mode 100644
index 0000000000..ea6c7786df
--- /dev/null
+++ b/src/schema/terms/SequenceVariant.yaml
@@ -0,0 +1,4 @@
+---
+name: SequenceVariant
+description: |
+  Variant of the ScanningSequence. Corresponds to DICOM Tag 0018, 0021 Sequence Variant.
diff --git a/src/schema/terms/SliceEncodingDirection.yaml b/src/schema/terms/SliceEncodingDirection.yaml
new file mode 100644
index 0000000000..b4f86d73af
--- /dev/null
+++ b/src/schema/terms/SliceEncodingDirection.yaml
@@ -0,0 +1,4 @@
+---
+name: SliceEncodingDirection
+description: |
+  Possible values: i, j, k, i-, j-, k- (the axis of the NIfTI data along which slices were acquired, and the direction in which SliceTiming is defined with respect to). i, j, k identifiers correspond to the first, second and third axis of the data in the NIfTI file. A - sign indicates that the contents of SliceTiming are defined in reverse order - that is, the first entry corresponds to the slice with the largest index, and the final entry corresponds to slice index zero. When present, the axis defined by SliceEncodingDirection needs to be consistent with the slice dim field in the NIfTI header. When absent, the entries in SliceTiming must be in the order of increasing slice index as defined by the NIfTI header.
diff --git a/src/schema/terms/SliceTiming.yaml b/src/schema/terms/SliceTiming.yaml
new file mode 100644
index 0000000000..fa25bcbe85
--- /dev/null
+++ b/src/schema/terms/SliceTiming.yaml
@@ -0,0 +1,4 @@
+---
+name: SliceTiming
+description: |
+  The time at which each slice was acquired within each volume (frame) of the acquisition. Slice timing is not slice order -- rather, it is a list of times (in JSON format) containing the time (in seconds) of each slice acquisition in relation to the beginning of volume acquisition. The list goes through the slices along the slice axis in the slice encoding dimension (see below). Note that to ensure the proper interpretation of the SliceTiming field, it is important to check if the OPTIONAL SliceEncodingDirection exists. In particular, if SliceEncodingDirection is negative, the entries in SliceTiming are defined in reverse order with respect to the slice axis (i.e., the final entry in the SliceTiming list is the time of acquisition of slice 0). This parameter is REQUIRED for sparse sequences that do not have the DelayTimefield set. In addition without this parameter slice time correction will not be possible.
diff --git a/src/schema/terms/SoftwareFilters.yaml b/src/schema/terms/SoftwareFilters.yaml
new file mode 100644
index 0000000000..e828d0b8cb
--- /dev/null
+++ b/src/schema/terms/SoftwareFilters.yaml
@@ -0,0 +1,4 @@
+---
+name: SoftwareFilters
+description: |
+  List of temporal and/or spatial software filters applied, or ideally key:value pairs of pre-applied software filters and their parameter values: e.g., {SSS: {frame: head, badlimit: 7}}, {SpatialCompensation: {GradientOrder: Order of the gradient compensation}}. Write n/a if no software filters applied.
diff --git a/src/schema/terms/SoftwareVersions.yaml b/src/schema/terms/SoftwareVersions.yaml
new file mode 100644
index 0000000000..60d369375f
--- /dev/null
+++ b/src/schema/terms/SoftwareVersions.yaml
@@ -0,0 +1,4 @@
+---
+name: SoftwareVersions
+description: |
+  Manufacturer’s designation of software version of the equipment that produced the composite instances. Corresponds to DICOM Tag 0018, 1020 Software Versions
diff --git a/src/schema/terms/StartTime.yaml b/src/schema/terms/StartTime.yaml
new file mode 100644
index 0000000000..5ae862c5a8
--- /dev/null
+++ b/src/schema/terms/StartTime.yaml
@@ -0,0 +1,4 @@
+---
+name: StartTime
+description: |
+  Start time in seconds in relation to the start of acquisition of the first data sample in the corresponding neural dataset (negative values are allowed).
diff --git a/src/schema/terms/StationName.yaml b/src/schema/terms/StationName.yaml
new file mode 100644
index 0000000000..6c08c9c152
--- /dev/null
+++ b/src/schema/terms/StationName.yaml
@@ -0,0 +1,4 @@
+---
+name: StationName
+description: |
+  Institution defined name of the machine that produced the composite instances. Corresponds to DICOM Tag 0008, 1010 Station Name
diff --git a/src/schema/terms/SubjectArtefactDescription.yaml b/src/schema/terms/SubjectArtefactDescription.yaml
new file mode 100644
index 0000000000..169659e21b
--- /dev/null
+++ b/src/schema/terms/SubjectArtefactDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: SubjectArtefactDescription
+description: |
+  Freeform description of the observed subject artefact and its possible cause (e.g. Vagus Nerve Stimulator, non-removable implant). If this field is set to n/a, it will be interpreted as absence of major source of artifacts except cardiac and blinks.
diff --git a/src/schema/terms2/T1 map.yaml b/src/schema/terms/T1map.yaml
similarity index 59%
rename from src/schema/terms2/T1 map.yaml
rename to src/schema/terms/T1map.yaml
index d46c1dae3f..6c44e1aebd 100644
--- a/src/schema/terms2/T1 map.yaml	
+++ b/src/schema/terms/T1map.yaml
@@ -1,4 +1,4 @@
 ---
 name: T1 map
 description: |
-  T1 map
+  Quantitative T1 map
diff --git a/src/schema/terms/T1rho.yaml b/src/schema/terms/T1rho.yaml
new file mode 100644
index 0000000000..ad8c0694ca
--- /dev/null
+++ b/src/schema/terms/T1rho.yaml
@@ -0,0 +1,6 @@
+---
+name: T1 Rho map
+description: |
+  Quantitative T1rho brain imaging
+  https://www.ncbi.nlm.nih.gov/pubmed/24474423
+  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4346383/
diff --git a/src/schema/terms/T1w.yaml b/src/schema/terms/T1w.yaml
index a0f9fffa1c..a8dae51179 100644
--- a/src/schema/terms/T1w.yaml
+++ b/src/schema/terms/T1w.yaml
@@ -1,17 +1,4 @@
 ---
-name: T1-weighted
-class: suffix
+name: T1w
 description: |
-  T1-weighted MRI scan.
-# Suffix-specific fields
-extensions:
-  - .nii.gz
-  - .nii
-  - .json
-entities:
-  sub: required
-  ses: optional
-  run: optional
-  acq: optional
-  ce: optional
-  rec: optional
+  Non-quantitative T1-weighted map
diff --git a/src/schema/terms2/T2 map.yaml b/src/schema/terms/T2map.yaml
similarity index 59%
rename from src/schema/terms2/T2 map.yaml
rename to src/schema/terms/T2map.yaml
index f05096ec14..44e9302eb7 100644
--- a/src/schema/terms2/T2 map.yaml	
+++ b/src/schema/terms/T2map.yaml
@@ -1,4 +1,4 @@
 ---
 name: T2 map
 description: |
-  T2 map
+  Quantitative T2 map
diff --git a/src/schema/terms/T2star.yaml b/src/schema/terms/T2star.yaml
new file mode 100644
index 0000000000..9e2e6806f3
--- /dev/null
+++ b/src/schema/terms/T2star.yaml
@@ -0,0 +1,4 @@
+---
+name: T2star
+description: |
+  Either quantitative or non-quantitative T2*-weighted map.
diff --git a/src/schema/terms/T2starmap.yaml b/src/schema/terms/T2starmap.yaml
new file mode 100644
index 0000000000..33ea06b42a
--- /dev/null
+++ b/src/schema/terms/T2starmap.yaml
@@ -0,0 +1,4 @@
+---
+name: T2starmap
+description: |
+  Quantitative T2* map.
diff --git a/src/schema/terms/T2starw.yaml b/src/schema/terms/T2starw.yaml
new file mode 100644
index 0000000000..ef93765ab6
--- /dev/null
+++ b/src/schema/terms/T2starw.yaml
@@ -0,0 +1,4 @@
+---
+name: T2starw
+description: |
+  Non-quantitative T2*-weighted map.
diff --git a/src/schema/terms/T2w.yaml b/src/schema/terms/T2w.yaml
new file mode 100644
index 0000000000..34a2780173
--- /dev/null
+++ b/src/schema/terms/T2w.yaml
@@ -0,0 +1,4 @@
+---
+name: T2w
+description: |
+  Non-quantitative T2-weighted map
diff --git a/src/schema/terms/TaskDescription.yaml b/src/schema/terms/TaskDescription.yaml
new file mode 100644
index 0000000000..0f9d2c4480
--- /dev/null
+++ b/src/schema/terms/TaskDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: TaskDescription
+description: |
+  Longer description of the task.
diff --git a/src/schema/terms/TaskName.yaml b/src/schema/terms/TaskName.yaml
new file mode 100644
index 0000000000..e4c176bc6c
--- /dev/null
+++ b/src/schema/terms/TaskName.yaml
@@ -0,0 +1,4 @@
+---
+name: TaskName
+description: |
+  Name of the task. No two tasks should have the same name. Task label (task-) included in the file name is derived from this field by removing all non alphanumeric ([a-zA-Z0-9]) characters. For example task name faces n-back will corresponds to task label facesnback. A RECOMMENDED convention is to name resting state task using labels beginning with rest.
diff --git a/src/schema/terms/TotalReadoutTime.yaml b/src/schema/terms/TotalReadoutTime.yaml
new file mode 100644
index 0000000000..3be088bb9e
--- /dev/null
+++ b/src/schema/terms/TotalReadoutTime.yaml
@@ -0,0 +1,4 @@
+---
+name: TotalReadoutTime
+description: |
+  This is actually the effective total readout time , defined as the readout duration, specified in seconds, that would have generated data with the given level of distortion. It is NOT the actual, physical duration of the readout train. If EffectiveEchoSpacing has been properly computed, it is just EffectiveEchoSpacing * (ReconMatrixPE - 1).3. This parameter is REQUIRED if corresponding field/distortion maps acquired with opposing phase encoding directions are present (see 8.9.4).
diff --git a/src/schema/terms/TriggerChannelCount.yaml b/src/schema/terms/TriggerChannelCount.yaml
new file mode 100644
index 0000000000..ce32fcc224
--- /dev/null
+++ b/src/schema/terms/TriggerChannelCount.yaml
@@ -0,0 +1,4 @@
+---
+name: TriggerChannelCount
+description: |
+  Number of channels for digital (TTL bit level) trigger.
diff --git a/src/schema/terms/VolumeTiming.yaml b/src/schema/terms/VolumeTiming.yaml
new file mode 100644
index 0000000000..45d47ddd1b
--- /dev/null
+++ b/src/schema/terms/VolumeTiming.yaml
@@ -0,0 +1,4 @@
+---
+name: VolumeTiming
+description: |
+  The time at which each volume was acquired during the acquisition. It is described using a list of times (in JSON format) referring to the onset of each volume in the BOLD series. The list must have the same length as the BOLD series, and the values must be non-negative and monotonically increasing. This field is mutually exclusive with RepetitionTime and DelayTime. If defined, this requires acquisition time (TA) be defined via either SliceTiming or AcquisitionDuration be defined.
diff --git a/src/schema/terms/anat.yaml b/src/schema/terms/anat.yaml
index e7028ffb1c..aef199845e 100644
--- a/src/schema/terms/anat.yaml
+++ b/src/schema/terms/anat.yaml
@@ -1,5 +1,4 @@
 ---
 name: Anatomical MRI
-class: datatype
 description: |
   Anatomical magnetic resonance imaging data.
diff --git a/src/schema/terms2/Angiography.yaml b/src/schema/terms/angio.yaml
similarity index 72%
rename from src/schema/terms2/Angiography.yaml
rename to src/schema/terms/angio.yaml
index 56b35b79de..2c22f3d131 100644
--- a/src/schema/terms2/Angiography.yaml
+++ b/src/schema/terms/angio.yaml
@@ -1,4 +1,4 @@
 ---
 name: Angiography
 description: |
-  angio
+  Angiography
diff --git a/src/schema/terms/bold.yaml b/src/schema/terms/bold.yaml
new file mode 100644
index 0000000000..62c2a5fe79
--- /dev/null
+++ b/src/schema/terms/bold.yaml
@@ -0,0 +1,4 @@
+---
+name: BOLD
+description: |
+  Blood oxygenation level-dependent signal.
diff --git a/src/schema/terms2/CBV.yaml b/src/schema/terms/cbv.yaml
similarity index 53%
rename from src/schema/terms2/CBV.yaml
rename to src/schema/terms/cbv.yaml
index 33a05c358f..8d7f4ef9c2 100644
--- a/src/schema/terms2/CBV.yaml
+++ b/src/schema/terms/cbv.yaml
@@ -1,4 +1,4 @@
 ---
 name: CBV
 description: |
-  cbv
+  Cerebral blood volume.
diff --git a/src/schema/terms/dimension.yaml b/src/schema/terms/dimension.yaml
new file mode 100644
index 0000000000..9dfc870666
--- /dev/null
+++ b/src/schema/terms/dimension.yaml
@@ -0,0 +1,4 @@
+---
+name: dimension
+description: |
+  Size of the group (grid/strip/probe) that this electrode belongs to. Must be of form [AxB] with the smallest dimension first (e.g., [1x8]).
diff --git a/src/schema/terms/duration.yaml b/src/schema/terms/duration.yaml
new file mode 100644
index 0000000000..59a8f0e211
--- /dev/null
+++ b/src/schema/terms/duration.yaml
@@ -0,0 +1,4 @@
+---
+name: duration
+description: |
+  Duration of the event (measured from onset) in seconds. Must always be either zero or positive. A duration value of zero implies that the delta function or event is so short as to be effectively modeled as an impulse.
diff --git a/src/schema/terms/dwi.yaml b/src/schema/terms/dwi.yaml
new file mode 100644
index 0000000000..f4e6da726a
--- /dev/null
+++ b/src/schema/terms/dwi.yaml
@@ -0,0 +1,4 @@
+---
+name: DWI
+description: |
+  Diffusion-weighted imaging.
diff --git a/src/schema/terms2/Electroencephalography.yaml b/src/schema/terms/eeg.yaml
similarity index 100%
rename from src/schema/terms2/Electroencephalography.yaml
rename to src/schema/terms/eeg.yaml
diff --git a/src/schema/terms/fmap.yaml b/src/schema/terms/fmap.yaml
new file mode 100644
index 0000000000..5e41e00f78
--- /dev/null
+++ b/src/schema/terms/fmap.yaml
@@ -0,0 +1,4 @@
+---
+name: Field map
+description: |
+  Field map.
diff --git a/src/schema/terms/func.yaml b/src/schema/terms/func.yaml
new file mode 100644
index 0000000000..f2cfeb7676
--- /dev/null
+++ b/src/schema/terms/func.yaml
@@ -0,0 +1,4 @@
+---
+name: Functional MRI
+description: |
+  Functional magnetic resonance imaging data.
diff --git a/src/schema/terms/group.yaml b/src/schema/terms/group.yaml
new file mode 100644
index 0000000000..cba0abb88f
--- /dev/null
+++ b/src/schema/terms/group.yaml
@@ -0,0 +1,4 @@
+---
+name: group
+description: |
+  Which group of channels (grid/strip/seeg/depth) this channel belongs to. This is relevant because one group has one cable-bundle and noise can be shared. This can be a name or number. Note that any groups specified in electrodes.tsv must match those present here.
diff --git a/src/schema/terms/hemisphere.yaml b/src/schema/terms/hemisphere.yaml
new file mode 100644
index 0000000000..3e1e6ba527
--- /dev/null
+++ b/src/schema/terms/hemisphere.yaml
@@ -0,0 +1,4 @@
+---
+name: hemisphere
+description: |
+  Optional field to specify the hemisphere in which the electrode is placed, one of [L or R] (use capital).
diff --git a/src/schema/terms/high_cutoff.yaml b/src/schema/terms/high_cutoff.yaml
new file mode 100644
index 0000000000..0965bf4d33
--- /dev/null
+++ b/src/schema/terms/high_cutoff.yaml
@@ -0,0 +1,4 @@
+---
+name: high_cutoff
+description: |
+  Frequencies used for the low-pass filter applied to the channel in Hz. If no low-pass filter applied, use n/a. Note that hardware anti-aliasing in A/D conversion of all MEG/EEG electronics applies a low-pass filter; specify its frequency here if applicable.
diff --git a/src/schema/terms/iEEGCoordinateProcessingDescription.yaml b/src/schema/terms/iEEGCoordinateProcessingDescription.yaml
new file mode 100644
index 0000000000..03428d35b9
--- /dev/null
+++ b/src/schema/terms/iEEGCoordinateProcessingDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateProcessingDescription
+description: |
+  Has any post-processing (such as projection) been done on the electrode positions (e.g., surface_projection, none).
diff --git a/src/schema/terms/iEEGCoordinateProcessingReference.yaml b/src/schema/terms/iEEGCoordinateProcessingReference.yaml
new file mode 100644
index 0000000000..ab40d3a371
--- /dev/null
+++ b/src/schema/terms/iEEGCoordinateProcessingReference.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateProcessingReference
+description: |
+  A reference to a paper that defines in more detail the method used to localize the electrodes and to post-process the electrode positions. .
diff --git a/src/schema/terms/iEEGCoordinateSystem.yaml b/src/schema/terms/iEEGCoordinateSystem.yaml
new file mode 100644
index 0000000000..19f7357ef4
--- /dev/null
+++ b/src/schema/terms/iEEGCoordinateSystem.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateSystem
+description: |
+  Defines the coordinate system for the iEEG electrodes. See Appendix VIII for a list of restricted keywords. If positions correspond to pixel indices in a 2D image (of either a volume-rendering, surface-rendering, operative photo, or operative drawing), this must be Pixels. For more information, see the section on 2D coordinate systems
diff --git a/src/schema/terms/iEEGCoordinateSystemDescription.yaml b/src/schema/terms/iEEGCoordinateSystemDescription.yaml
new file mode 100644
index 0000000000..ef3d553d8d
--- /dev/null
+++ b/src/schema/terms/iEEGCoordinateSystemDescription.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateSystemDescription
+description: |
+  Freeform text description or link to document describing the iEEG coordinate system system in detail (e.g., Coordinate system with the origin at anterior commissure (AC), negative y-axis going through the posterior commissure (PC), z-axis going to a mid-hemisperic point which lies superior to the AC-PC line, x-axis going to the right).
diff --git a/src/schema/terms/iEEGCoordinateUnits.yaml b/src/schema/terms/iEEGCoordinateUnits.yaml
new file mode 100644
index 0000000000..077f0a8922
--- /dev/null
+++ b/src/schema/terms/iEEGCoordinateUnits.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGCoordinateUnits
+description: |
+  Units of the electrodes.tsv, MUST be m, mm, cm or pixels.
diff --git a/src/schema/terms/iEEGElectrodeGroups.yaml b/src/schema/terms/iEEGElectrodeGroups.yaml
new file mode 100644
index 0000000000..2152f35181
--- /dev/null
+++ b/src/schema/terms/iEEGElectrodeGroups.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGElectrodeGroups
+description: |
+  Field to describe the way electrodes are grouped into strips, grids or depth probes e.g., {grid1: 10x8 grid on left temporal pole, strip2: 1x8 electrode strip on xxx}.
diff --git a/src/schema/terms/iEEGGround.yaml b/src/schema/terms/iEEGGround.yaml
new file mode 100644
index 0000000000..142dc37e3e
--- /dev/null
+++ b/src/schema/terms/iEEGGround.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGGround
+description: |
+  Description of the location of the ground electrode (e.g., placed on right mastoid (M2)).
diff --git a/src/schema/terms/iEEGPlacementScheme.yaml b/src/schema/terms/iEEGPlacementScheme.yaml
new file mode 100644
index 0000000000..782a704356
--- /dev/null
+++ b/src/schema/terms/iEEGPlacementScheme.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGPlacementScheme
+description: |
+  Freeform description of the placement of the iEEG electrodes. Left/right/bilateral/depth/surface (e.g., left frontal grid and bilateral hippocampal depth or surface strip and STN depth or clinical indication bitemporal, bilateral temporal strips and left grid).
diff --git a/src/schema/terms/iEEGReference.yaml b/src/schema/terms/iEEGReference.yaml
new file mode 100644
index 0000000000..51efc1d143
--- /dev/null
+++ b/src/schema/terms/iEEGReference.yaml
@@ -0,0 +1,4 @@
+---
+name: iEEGReference
+description: |
+  General description of the reference scheme used and (when applicable) of location of the reference electrode in the raw recordings (e.g., left mastoid, bipolar, T01 for electrode with name T01, intracranial electrode on top of a grid, not included with data, upside down electrode). If different channels have a different reference, this field should have a general description and the channel specific reference should be defined in the channels.tsv file.
diff --git a/src/schema/terms2/Intracranial Electroencephalography.yaml b/src/schema/terms/ieeg.yaml
similarity index 57%
rename from src/schema/terms2/Intracranial Electroencephalography.yaml
rename to src/schema/terms/ieeg.yaml
index cfb8d8e7da..33209af3a3 100644
--- a/src/schema/terms2/Intracranial Electroencephalography.yaml	
+++ b/src/schema/terms/ieeg.yaml
@@ -1,4 +1,4 @@
 ---
 name: Intracranial Electroencephalography
 description: |
-  
+  Intracranial Electroencephalography (iEEG).
diff --git a/src/schema/terms/impedance.yaml b/src/schema/terms/impedance.yaml
new file mode 100644
index 0000000000..a90741a8ca
--- /dev/null
+++ b/src/schema/terms/impedance.yaml
@@ -0,0 +1,4 @@
+---
+name: impedance
+description: |
+  Impedance of the electrode in kOhm
diff --git a/src/schema/terms2/Inplane T1.yaml b/src/schema/terms/inplaneT1.yaml
similarity index 100%
rename from src/schema/terms2/Inplane T1.yaml
rename to src/schema/terms/inplaneT1.yaml
diff --git a/src/schema/terms2/Inplane T2.yaml b/src/schema/terms/inplaneT2.yaml
similarity index 100%
rename from src/schema/terms2/Inplane T2.yaml
rename to src/schema/terms/inplaneT2.yaml
diff --git a/src/schema/terms/low_cutoff.yaml b/src/schema/terms/low_cutoff.yaml
new file mode 100644
index 0000000000..3c9192bed9
--- /dev/null
+++ b/src/schema/terms/low_cutoff.yaml
@@ -0,0 +1,4 @@
+---
+name: low_cutoff
+description: |
+  Frequencies used for the high-pass filter applied to the channel in Hz. If no high-pass filter applied, use n/a.
diff --git a/src/schema/terms/material.yaml b/src/schema/terms/material.yaml
new file mode 100644
index 0000000000..e4ee58a789
--- /dev/null
+++ b/src/schema/terms/material.yaml
@@ -0,0 +1,4 @@
+---
+name: material
+description: |
+  Material of the electrode, e.g., Tin, Ag/AgCl, Gold
diff --git a/src/schema/terms2/Magnetoencephalography.yaml b/src/schema/terms/meg.yaml
similarity index 60%
rename from src/schema/terms2/Magnetoencephalography.yaml
rename to src/schema/terms/meg.yaml
index 48c7bdbf6d..b879b87be9 100644
--- a/src/schema/terms2/Magnetoencephalography.yaml
+++ b/src/schema/terms/meg.yaml
@@ -1,4 +1,4 @@
 ---
 name: Magnetoencephalography
 description: |
-  
+  Magnetoencephalography (MEG).
diff --git a/src/schema/terms/notch.yaml b/src/schema/terms/notch.yaml
new file mode 100644
index 0000000000..3f5c1a0e4c
--- /dev/null
+++ b/src/schema/terms/notch.yaml
@@ -0,0 +1,4 @@
+---
+name: notch
+description: |
+  Frequencies used for the notch filter applied to the channel, in Hz. If no notch filter applied, use n/a.
diff --git a/src/schema/terms/onset.yaml b/src/schema/terms/onset.yaml
new file mode 100644
index 0000000000..6c2e4d431f
--- /dev/null
+++ b/src/schema/terms/onset.yaml
@@ -0,0 +1,4 @@
+---
+name: onset
+description: |
+  Onset (in seconds) of the event measured from the beginning of the acquisition of the first volume in the corresponding task imaging data file. If any acquired scans have been discarded before forming the imaging data file, ensure that a time of 0 corresponds to the first image stored. In other words negative numbers in onset are allowed.
diff --git a/src/schema/terms/phase.yaml b/src/schema/terms/phase.yaml
new file mode 100644
index 0000000000..052e514e15
--- /dev/null
+++ b/src/schema/terms/phase.yaml
@@ -0,0 +1,4 @@
+---
+name: Phase
+description: |
+  The phase component of a complex signal.
diff --git a/src/schema/terms/reference.yaml b/src/schema/terms/reference.yaml
new file mode 100644
index 0000000000..3daad67a43
--- /dev/null
+++ b/src/schema/terms/reference.yaml
@@ -0,0 +1,4 @@
+---
+name: reference
+description: |
+  Name of the reference electrode(s) (not needed when it is common to all channels, in that case it can be specified in * eeg.json as EEGReference).
diff --git a/src/schema/terms2/respiratory.yaml b/src/schema/terms/respiratory.yaml
similarity index 100%
rename from src/schema/terms2/respiratory.yaml
rename to src/schema/terms/respiratory.yaml
diff --git a/src/schema/terms/response_time.yaml b/src/schema/terms/response_time.yaml
new file mode 100644
index 0000000000..b197c9d35f
--- /dev/null
+++ b/src/schema/terms/response_time.yaml
@@ -0,0 +1,4 @@
+---
+name: response_time
+description: |
+  Response time measured in seconds. A negative response time can be used to represent preemptive responses and n/a denotes a missed response.
diff --git a/src/schema/terms/sample.yaml b/src/schema/terms/sample.yaml
new file mode 100644
index 0000000000..3f2086e7ac
--- /dev/null
+++ b/src/schema/terms/sample.yaml
@@ -0,0 +1,4 @@
+---
+name: sample
+description: |
+  Onset of the event according to the sampling scheme of the recorded modality (i.e., referring to the raw data file that the events.tsv file accompanies).
diff --git a/src/schema/terms/sampling_frequency.yaml b/src/schema/terms/sampling_frequency.yaml
new file mode 100644
index 0000000000..ee19faf9d5
--- /dev/null
+++ b/src/schema/terms/sampling_frequency.yaml
@@ -0,0 +1,4 @@
+---
+name: sampling_frequency
+description: |
+  Sampling rate of the channel in Hz.
diff --git a/src/schema/terms/size.yaml b/src/schema/terms/size.yaml
new file mode 100644
index 0000000000..e660d57d92
--- /dev/null
+++ b/src/schema/terms/size.yaml
@@ -0,0 +1,4 @@
+---
+name: size
+description: |
+  Surface area of the electrode, in mm^2.
diff --git a/src/schema/terms/software_filters.yaml b/src/schema/terms/software_filters.yaml
new file mode 100644
index 0000000000..8ac4ad08c4
--- /dev/null
+++ b/src/schema/terms/software_filters.yaml
@@ -0,0 +1,4 @@
+---
+name: software_filters
+description: |
+  List of temporal and/or spatial software filters applied (e.g. SSS, SpatialCompensation). Note that parameters should be defined in the general MEG sidecar .json file. Indicate n/a in the absence of software filters applied.
diff --git a/src/schema/terms/status.yaml b/src/schema/terms/status.yaml
new file mode 100644
index 0000000000..f1ff45c1fc
--- /dev/null
+++ b/src/schema/terms/status.yaml
@@ -0,0 +1,4 @@
+---
+name: status
+description: |
+  Data quality observed on the channel (good/bad). A channel is considered bad if its data quality is compromised by excessive noise. Description of noise type SHOULD be provided in [status_description].
diff --git a/src/schema/terms/status_description.yaml b/src/schema/terms/status_description.yaml
new file mode 100644
index 0000000000..7fca6d0f7d
--- /dev/null
+++ b/src/schema/terms/status_description.yaml
@@ -0,0 +1,4 @@
+---
+name: status_description
+description: |
+  Freeform text description of noise or artifact affecting data quality on the channel. It is meant to explain why the channel was declared bad in [status].
diff --git a/src/schema/terms/stim_file.yaml b/src/schema/terms/stim_file.yaml
new file mode 100644
index 0000000000..86d5193dc8
--- /dev/null
+++ b/src/schema/terms/stim_file.yaml
@@ -0,0 +1,4 @@
+---
+name: stim_file
+description: |
+  Represents the location of the stimulus file (image, video, sound etc.) presented at the given onset time. There are no restrictions on the file formats of the stimuli files, but they should be stored in the /stimuli folder (under the root folder of the dataset; with optional subfolders). The values under the stim_file column correspond to a path relative to /stimuli. For example images/cat03.jpg will be translated to /stimuli/images/cat03.jpg.
diff --git a/src/schema/terms2/trial_type.yaml b/src/schema/terms/trial_type.yaml
similarity index 100%
rename from src/schema/terms2/trial_type.yaml
rename to src/schema/terms/trial_type.yaml
diff --git a/src/schema/terms2/type.yaml b/src/schema/terms/type.yaml
similarity index 100%
rename from src/schema/terms2/type.yaml
rename to src/schema/terms/type.yaml
diff --git a/src/schema/terms2/AcquisitionDuration.yaml b/src/schema/terms2/AcquisitionDuration.yaml
deleted file mode 100644
index 402a61b455..0000000000
--- a/src/schema/terms2/AcquisitionDuration.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: AcquisitionDuration
-description: |
-  RECOMMENDED. Duration (in seconds) of volume acquisition. Corresponds to DICOM Tag 0018,9073 Acquisition Duration. This field is REQUIRED for sequences that are described with the VolumeTiming field and that not have the SliceTiming field set to allowed for accurate calculation of acquisition time. This field is mutually exclusive with RepetitionTime.
diff --git a/src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml b/src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml
deleted file mode 100644
index 8dfb2a7c3a..0000000000
--- a/src/schema/terms2/AnatomicalLandmarkCoordinateSystem.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: AnatomicalLandmarkCoordinateSystem
-description: |
-  OPTIONAL. Defines the coordinate system for the anatomical landmarks. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in AnatomicalLandmarkCoordinateSystemDescription.
diff --git a/src/schema/terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml b/src/schema/terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml
deleted file mode 100644
index 390c34539f..0000000000
--- a/src/schema/terms2/AnatomicalLandmarkCoordinateSystemDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: AnatomicalLandmarkCoordinateSystemDescription
-description: |
-  OPTIONAL. Freeform text description or link to document describing the Head Coil coordinate system system in detail.
diff --git a/src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml b/src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml
deleted file mode 100644
index 29039cfec0..0000000000
--- a/src/schema/terms2/AnatomicalLandmarkCoordinateUnits.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: AnatomicalLandmarkCoordinateUnits
-description: |
-  OPTIONAL. Units of the coordinates of AnatomicalLandmarkCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/AnatomicalLandmarkCoordinates.yaml b/src/schema/terms2/AnatomicalLandmarkCoordinates.yaml
deleted file mode 100644
index dcb36d744f..0000000000
--- a/src/schema/terms2/AnatomicalLandmarkCoordinates.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: AnatomicalLandmarkCoordinates
-description: |
-  OPTIONAL. Key:value pairs of the labels and 3-D digitized locations of anatomical landmarks, interpreted following the AnatomicalLandmarkCoordinateSystem, e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}.
diff --git a/src/schema/terms2/AssociatedEmptyRoom.yaml b/src/schema/terms2/AssociatedEmptyRoom.yaml
deleted file mode 100644
index 164cc0fd2f..0000000000
--- a/src/schema/terms2/AssociatedEmptyRoom.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: AssociatedEmptyRoom
-description: |
-  RECOMMENDED. Relative path in BIDS folder structure to empty-room file associated with the subject's MEG recording. The path needs to use forward slashes instead of backward slashes (e.g. sub-emptyroom/ses-/meg/sub-emptyroom/ses-task-noise/run-meg.ds).
diff --git a/src/schema/terms2/Authors.yaml b/src/schema/terms2/Authors.yaml
deleted file mode 100644
index 9e6ed84327..0000000000
--- a/src/schema/terms2/Authors.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: Authors
-description: |
-  OPTIONAL. List of individuals who contributed to the creation/curation of the dataset.
diff --git a/src/schema/terms2/BIDSVersion.yaml b/src/schema/terms2/BIDSVersion.yaml
deleted file mode 100644
index fe530a4f8f..0000000000
--- a/src/schema/terms2/BIDSVersion.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: BIDSVersion
-description: |
-  REQUIRED. The version of the BIDS standard that was used.
diff --git a/src/schema/terms2/BOLD.yaml b/src/schema/terms2/BOLD.yaml
deleted file mode 100644
index 1f29be9c02..0000000000
--- a/src/schema/terms2/BOLD.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: BOLD
-description: |
-  bold
diff --git a/src/schema/terms2/CapManufacturer.yaml b/src/schema/terms2/CapManufacturer.yaml
deleted file mode 100644
index b8886efda4..0000000000
--- a/src/schema/terms2/CapManufacturer.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: CapManufacturer
-description: |
-  OPTIONAL. Manufacturer of the EEG cap (e.g. EasyCap)
diff --git a/src/schema/terms2/CapManufacturersModelName.yaml b/src/schema/terms2/CapManufacturersModelName.yaml
deleted file mode 100644
index c715d96158..0000000000
--- a/src/schema/terms2/CapManufacturersModelName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: CapManufacturersModelName
-description: |
-  OPTIONAL. Manufacturer's designation of the EEG cap model (e.g., M10)
diff --git a/src/schema/terms2/CogAtlasID.yaml b/src/schema/terms2/CogAtlasID.yaml
deleted file mode 100644
index 56c2617439..0000000000
--- a/src/schema/terms2/CogAtlasID.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: CogAtlasID
-description: |
-  RECOMMENDED. URL of the corresponding Cognitive Atlas Task term.
diff --git a/src/schema/terms2/CogPOID.yaml b/src/schema/terms2/CogPOID.yaml
deleted file mode 100644
index 514c9ed101..0000000000
--- a/src/schema/terms2/CogPOID.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: CogPOID
-description: |
-  RECOMMENDED. URL of the corresponding CogPO term.
diff --git a/src/schema/terms2/CoilCombinationMethod.yaml b/src/schema/terms2/CoilCombinationMethod.yaml
deleted file mode 100644
index b00cc9f302..0000000000
--- a/src/schema/terms2/CoilCombinationMethod.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: CoilCombinationMethod
-description: |
-  RECOMMENDED. Almost all fMRI studies using phased-array coils use root-sum-of-squares (rSOS) combination, but other methods exist. The image reconstruction is changed by the coil combination method (as for the matrix coil mode above), so anything non-standard should be reported
diff --git a/src/schema/terms2/Columns.yaml b/src/schema/terms2/Columns.yaml
deleted file mode 100644
index 5b3492ac18..0000000000
--- a/src/schema/terms2/Columns.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: Columns
-description: |
-  REQUIRED. Names of columns in file.
diff --git a/src/schema/terms2/ContinuousHeadLocalization.yaml b/src/schema/terms2/ContinuousHeadLocalization.yaml
deleted file mode 100644
index 3f3393d210..0000000000
--- a/src/schema/terms2/ContinuousHeadLocalization.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ContinuousHeadLocalization
-description: |
-  RECOMMENDED. Boolean (true or false) value indicating whether continuous head localisation was performed.
diff --git a/src/schema/terms2/DCOffsetCorrection.yaml b/src/schema/terms2/DCOffsetCorrection.yaml
deleted file mode 100644
index 52e4fb6fad..0000000000
--- a/src/schema/terms2/DCOffsetCorrection.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DCOffsetCorrection
-description: |
-  RECOMMENDED. A description of the method (if any) used to correct for a DC offset. If the method used was subtracting the mean value for each channel, use mean.
diff --git a/src/schema/terms2/DatasetDOI.yaml b/src/schema/terms2/DatasetDOI.yaml
deleted file mode 100644
index 36669415d9..0000000000
--- a/src/schema/terms2/DatasetDOI.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DatasetDOI
-description: |
-  OPTIONAL. The Document Object Identifier of the dataset (not the corresponding paper).
diff --git a/src/schema/terms2/DelayAfterTrigger.yaml b/src/schema/terms2/DelayAfterTrigger.yaml
deleted file mode 100644
index 708ebe4e28..0000000000
--- a/src/schema/terms2/DelayAfterTrigger.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DelayAfterTrigger
-description: |
-  RECOMMENDED. Duration (in seconds) from trigger delivery to scan onset. This delay is commonly caused by adjustments and loading times. This specification is entirely independent of NumberOfVolumesDiscardedByScanner or NumberOfVolumesDiscardedByUser, as the delay precedes the acquisition.
diff --git a/src/schema/terms2/DelayTime.yaml b/src/schema/terms2/DelayTime.yaml
deleted file mode 100644
index 39da88e81f..0000000000
--- a/src/schema/terms2/DelayTime.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DelayTime
-description: |
-  RECOMMENDED. User specified time (in seconds) to delay the acquisition of data for the following volume. If the field is not present it is assumed to be set to zero. Corresponds to Siemens CSA header field lDelayTimeInTR. This field is REQUIRED for sparse sequences using the RepetitionTime field that do not have the SliceTiming field set to allowed for accurate calculation of acquisition time. This field is mutually exclusive with VolumeTiming.
diff --git a/src/schema/terms2/DeviceSerialNumber.yaml b/src/schema/terms2/DeviceSerialNumber.yaml
deleted file mode 100644
index 3084ccc9bf..0000000000
--- a/src/schema/terms2/DeviceSerialNumber.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DeviceSerialNumber
-description: |
-  RECOMMENDED. The serial number of the equipment that produced the composite instances. Corresponds to DICOM Tag 0018, 1000 DeviceSerialNumber. A pseudonym can also be used to prevent the equipment from being identifiable, so long as each pseudonym is unique within the dataset
diff --git a/src/schema/terms2/DewarPosition.yaml b/src/schema/terms2/DewarPosition.yaml
deleted file mode 100644
index 967c7c371a..0000000000
--- a/src/schema/terms2/DewarPosition.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DewarPosition
-description: |
-  REQUIRED. Position of the dewar during the MEG scan: upright, supine or degrees of angle from vertical: for example on CTF systems, upright=15 degrees, supine = 90 degrees.
diff --git a/src/schema/terms2/DigitizedHeadPoints.yaml b/src/schema/terms2/DigitizedHeadPoints.yaml
deleted file mode 100644
index b415d5e1c0..0000000000
--- a/src/schema/terms2/DigitizedHeadPoints.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DigitizedHeadPoints
-description: |
-  OPTIONAL. Relative path to the file containing the locations of digitized head points collected during the session (e.g., sub-01_headshape.pos). RECOMMENDED for all MEG systems, especially for CTF and BTi/4D. For Elekta/Neuromag the head points will be stored in the fif file.
diff --git a/src/schema/terms2/DigitizedHeadPointsCoordinateSystem.yaml b/src/schema/terms2/DigitizedHeadPointsCoordinateSystem.yaml
deleted file mode 100644
index 2c7db1fb72..0000000000
--- a/src/schema/terms2/DigitizedHeadPointsCoordinateSystem.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DigitizedHeadPointsCoordinateSystem
-description: |
-  OPTIONAL. Defines the coordinate system for the digitized head points. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in DigitizedHeadPointsCoordinateSystemDescription.
diff --git a/src/schema/terms2/DigitizedHeadPointsCoordinateSystemDescription.yaml b/src/schema/terms2/DigitizedHeadPointsCoordinateSystemDescription.yaml
deleted file mode 100644
index 2d80e58c10..0000000000
--- a/src/schema/terms2/DigitizedHeadPointsCoordinateSystemDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DigitizedHeadPointsCoordinateSystemDescription
-description: |
-  OPTIONAL. Freeform text description or link to document describing the Digitized head Points coordinate system system in detail.
diff --git a/src/schema/terms2/DigitizedHeadPointsCoordinateUnits.yaml b/src/schema/terms2/DigitizedHeadPointsCoordinateUnits.yaml
deleted file mode 100644
index daa8deb1a1..0000000000
--- a/src/schema/terms2/DigitizedHeadPointsCoordinateUnits.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DigitizedHeadPointsCoordinateUnits
-description: |
-  OPTIONAL. Units of the coordinates of DigitizedHeadPointsCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/DigitizedLandmarks.yaml b/src/schema/terms2/DigitizedLandmarks.yaml
deleted file mode 100644
index 470f710352..0000000000
--- a/src/schema/terms2/DigitizedLandmarks.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DigitizedLandmarks
-description: |
-  REQUIRED. Boolean (true or false) value indicating whether anatomical landmark points (i.e. fiducials) are contained within this recording.
diff --git a/src/schema/terms2/DwellTime.yaml b/src/schema/terms2/DwellTime.yaml
deleted file mode 100644
index b59963a6cf..0000000000
--- a/src/schema/terms2/DwellTime.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: DwellTime
-description: |
-  RECOMMENDED. Actual dwell time (in seconds) of the receiver per point in the readout direction, including any oversampling. For Siemens, this corresponds to DICOM field (0019,1018) (in ns). This value is necessary for the optional readout distortion correction of anatomicals in the HCP Pipelines. It also usefully provides a handle on the readout bandwidth, which isn’t captured in the other metadata tags. Not to be confused with EffectiveEchoSpacing, and the frequent mislabeling of echo spacing (which is spacing in the phase encoding direction) as dwell time (which is spacing in the readout direction).
diff --git a/src/schema/terms2/EEGChannelCount.yaml b/src/schema/terms2/EEGChannelCount.yaml
deleted file mode 100644
index 855ef95012..0000000000
--- a/src/schema/terms2/EEGChannelCount.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EEGChannelCount
-description: |
-  RECOMMENDED. Number of EEG channels included in the recording (e.g., 128).
diff --git a/src/schema/terms2/EEGCoordinateSystem.yaml b/src/schema/terms2/EEGCoordinateSystem.yaml
deleted file mode 100644
index a99419076f..0000000000
--- a/src/schema/terms2/EEGCoordinateSystem.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EEGCoordinateSystem
-description: |
-  OPTIONAL. Describes how the coordinates of the EEG sensors are to be interpreted.
diff --git a/src/schema/terms2/EEGCoordinateSystemDescription.yaml b/src/schema/terms2/EEGCoordinateSystemDescription.yaml
deleted file mode 100644
index b553793c90..0000000000
--- a/src/schema/terms2/EEGCoordinateSystemDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EEGCoordinateSystemDescription
-description: |
-  OPTIONAL. Freeform text description or link to document describing the EEG coordinate system system in detail.
diff --git a/src/schema/terms2/EEGCoordinateUnits.yaml b/src/schema/terms2/EEGCoordinateUnits.yaml
deleted file mode 100644
index 08cde6c5ba..0000000000
--- a/src/schema/terms2/EEGCoordinateUnits.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EEGCoordinateUnits
-description: |
-  OPTIONAL. Units of the coordinates of EEGCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/EEGGround.yaml b/src/schema/terms2/EEGGround.yaml
deleted file mode 100644
index 6db8c56dba..0000000000
--- a/src/schema/terms2/EEGGround.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EEGGround
-description: |
-  RECOMMENDED. Description of the location of the ground electrode (e.g., placed on right mastoid (M2)).
diff --git a/src/schema/terms2/EEGPlacementScheme.yaml b/src/schema/terms2/EEGPlacementScheme.yaml
deleted file mode 100644
index 293f15ac41..0000000000
--- a/src/schema/terms2/EEGPlacementScheme.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EEGPlacementScheme
-description: |
-  RECOMMENDED. Placement scheme of EEG electrodes. Either the name of a standardized placement system (e.g., 10-20) or a list of standardized electrode names (e.g., [Cz, Pz]).
diff --git a/src/schema/terms2/EEGReference.yaml b/src/schema/terms2/EEGReference.yaml
deleted file mode 100644
index c8700fae3b..0000000000
--- a/src/schema/terms2/EEGReference.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EEGReference
-description: |
-  OPTIONAL. Description of the type of EEG reference used (e.g., M1 for left mastoid, average, or longitudinal bipolar).
diff --git a/src/schema/terms2/EchoTime.yaml b/src/schema/terms2/EchoTime.yaml
deleted file mode 100644
index 2ebb1e9f87..0000000000
--- a/src/schema/terms2/EchoTime.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EchoTime
-description: |
-  RECOMMENDED. The echo time (TE) for the acquisition, specified in seconds. This parameter is REQUIRED if corresponding fieldmap data is present or the data comes from a multi echo sequence. Corresponds to DICOM Tag 0018, 0081 Echo Time(please note that the DICOM term is in milliseconds not seconds).
diff --git a/src/schema/terms2/EffectiveEchoSpacing.yaml b/src/schema/terms2/EffectiveEchoSpacing.yaml
deleted file mode 100644
index 83e6124d65..0000000000
--- a/src/schema/terms2/EffectiveEchoSpacing.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EffectiveEchoSpacing
-description: |
-  RECOMMENDED. The effective sampling interval, specified in seconds, between lines in the phase-encoding direction, defined based on the size of the reconstructed image in the phase direction. It is frequently, but incorrectly, referred to as dwell time (see DwellTime parameter below for actual dwell time). It is required for unwarping distortions using field maps. Note that beyond just in-plane acceleration, a variety of other manipulations to the phase encoding need to be accounted for properly, including partial fourier, phase oversampling, phase resolution, phase field-of-view and interpolation.2This parameter is REQUIRED if corresponding fieldmap data is present.
diff --git a/src/schema/terms2/ElectricalStimulation.yaml b/src/schema/terms2/ElectricalStimulation.yaml
deleted file mode 100644
index 67f39b9426..0000000000
--- a/src/schema/terms2/ElectricalStimulation.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ElectricalStimulation
-description: |
-  OPTIONAL. Boolean field to specify if electrical stimulation was done during the recording (options are true or false). Parameters for event-like stimulation should be specified in the events.tsv file (see example below).
diff --git a/src/schema/terms2/ElectricalStimulationParameters.yaml b/src/schema/terms2/ElectricalStimulationParameters.yaml
deleted file mode 100644
index 9ef19bef68..0000000000
--- a/src/schema/terms2/ElectricalStimulationParameters.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ElectricalStimulationParameters
-description: |
-  OPTIONAL. Free form description of stimulation parameters, such as frequency, shape etc. Specific onsets can be specified in the events.tsv file. Specific shapes can be described here in freeform text.
diff --git a/src/schema/terms2/ElectrodeManufacturer.yaml b/src/schema/terms2/ElectrodeManufacturer.yaml
deleted file mode 100644
index dec0176ffe..0000000000
--- a/src/schema/terms2/ElectrodeManufacturer.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ElectrodeManufacturer
-description: |
-  RECOMMENDED. can be used if all electrodes are of the same manufacturer (e.g., AD-TECH, DIXI). If electrodes of different manufacturers are used, please use the corresponding table in the _electrodes.tsv file.
diff --git a/src/schema/terms2/ElectrodeManufacturersModelName.yaml b/src/schema/terms2/ElectrodeManufacturersModelName.yaml
deleted file mode 100644
index b0cefac8a6..0000000000
--- a/src/schema/terms2/ElectrodeManufacturersModelName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ElectrodeManufacturersModelName
-description: |
-  RECOMMENDED. If different electrode types are used, please use the corresponding table in the electrodes.tsv file.
diff --git a/src/schema/terms2/EpochLength.yaml b/src/schema/terms2/EpochLength.yaml
deleted file mode 100644
index ee51244cf2..0000000000
--- a/src/schema/terms2/EpochLength.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: EpochLength
-description: |
-  RECOMMENDED. Duration of individual epochs in seconds (e.g. 1) in case of epoched data
diff --git a/src/schema/terms2/FLAIR.yaml b/src/schema/terms2/FLAIR.yaml
deleted file mode 100644
index 2d2974cd35..0000000000
--- a/src/schema/terms2/FLAIR.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: FLAIR
-description: |
-  FLAIR
diff --git a/src/schema/terms2/FLASH.yaml b/src/schema/terms2/FLASH.yaml
deleted file mode 100644
index 06a92adaa4..0000000000
--- a/src/schema/terms2/FLASH.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: FLASH
-description: |
-  FLASH
diff --git a/src/schema/terms2/FiducialsCoordinateSystem.yaml b/src/schema/terms2/FiducialsCoordinateSystem.yaml
deleted file mode 100644
index 38afb1151c..0000000000
--- a/src/schema/terms2/FiducialsCoordinateSystem.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: FiducialsCoordinateSystem
-description: |
-  RECOMMENDED. Refers to the coordinate space to which the landmarks positions are to be interpreted - preferably the same as the EEGCoordinateSystem.
diff --git a/src/schema/terms2/FiducialsCoordinateSystemDescription.yaml b/src/schema/terms2/FiducialsCoordinateSystemDescription.yaml
deleted file mode 100644
index 00147144b2..0000000000
--- a/src/schema/terms2/FiducialsCoordinateSystemDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: FiducialsCoordinateSystemDescription
-description: |
-  RECOMMENDED. Free-form text description of the coordinate system. May also include a link to a documentation page or paper describing the system in greater detail.
diff --git a/src/schema/terms2/FiducialsCoordinateUnits.yaml b/src/schema/terms2/FiducialsCoordinateUnits.yaml
deleted file mode 100644
index c35525a982..0000000000
--- a/src/schema/terms2/FiducialsCoordinateUnits.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: FiducialsCoordinateUnits
-description: |
-  RECOMMENDED. Units in which the coordinates that are listed in the field AnatomicalLandmarkCoordinateSystem are represented (e.g., mm, cm).
diff --git a/src/schema/terms2/FiducialsCoordinates.yaml b/src/schema/terms2/FiducialsCoordinates.yaml
deleted file mode 100644
index 1f2b351532..0000000000
--- a/src/schema/terms2/FiducialsCoordinates.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: FiducialsCoordinates
-description: |
-  RECOMMENDED. Key:value pairs of the labels and 3-D digitized position of anatomical landmarks, interpreted following the FiducialsCoordinateSystem (e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}).
diff --git a/src/schema/terms2/FiducialsDescription.yaml b/src/schema/terms2/FiducialsDescription.yaml
deleted file mode 100644
index 2fed0e1dad..0000000000
--- a/src/schema/terms2/FiducialsDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: FiducialsDescription
-description: |
-  OPTIONAL. A freeform text field documenting the anatomical landmarks that were used and how the head localization coils were placed relative to these. This field can describe, for instance, whether the true anatomical locations of the left and right pre-auricular points were used and digitized, or rather whether they were defined as the intersection between the tragus and the helix (the entry of the ear canal), or any other anatomical description of selected points in the vicinity of the ears.
diff --git a/src/schema/terms2/FlipAngle.yaml b/src/schema/terms2/FlipAngle.yaml
deleted file mode 100644
index 0a31c38a71..0000000000
--- a/src/schema/terms2/FlipAngle.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: FlipAngle
-description: |
-  RECOMMENDED. Flip angle for the acquisition, specified in degrees. Corresponds to: DICOM Tag 0018, 1314 Flip Angle.
diff --git a/src/schema/terms2/Funding.yaml b/src/schema/terms2/Funding.yaml
deleted file mode 100644
index d5a4d27925..0000000000
--- a/src/schema/terms2/Funding.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: Funding
-description: |
-  OPTIONAL. List of sources of funding (grant numbers)
diff --git a/src/schema/terms2/GradientSetType.yaml b/src/schema/terms2/GradientSetType.yaml
deleted file mode 100644
index 6948c65054..0000000000
--- a/src/schema/terms2/GradientSetType.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: GradientSetType
-description: |
-  RECOMMENDED. It should be possible to infer the gradient coil from the scanner model. If not, e.g. because of a custom upgrade or use of a gradient insert set, then the specifications of the actual gradient coil should be reported independently
diff --git a/src/schema/terms2/HardcopyDeviceSoftwareVersion.yaml b/src/schema/terms2/HardcopyDeviceSoftwareVersion.yaml
deleted file mode 100644
index f35a57a959..0000000000
--- a/src/schema/terms2/HardcopyDeviceSoftwareVersion.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HardcopyDeviceSoftwareVersion
-description: |
-  (Deprecated) Manufacturer’s designation of the software of the device that created this Hardcopy Image (the printer). Corresponds to DICOM Tag 0018, 101A Hardcopy Device Software Version
diff --git a/src/schema/terms2/HardwareFilters.yaml b/src/schema/terms2/HardwareFilters.yaml
deleted file mode 100644
index e975ed2feb..0000000000
--- a/src/schema/terms2/HardwareFilters.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HardwareFilters
-description: |
-  RECOMMENDED. List of temporal hardware filters applied. Ideally key:value pairs of pre-applied hardware filters and their parameter values: e.g., {HardwareFilters: {Highpass RC filter: {Half amplitude cutoff (Hz): 0.0159, Roll-off: 6dB/Octave}}}. Write n/a if no hardware filters applied.
diff --git a/src/schema/terms2/HeadCircumference.yaml b/src/schema/terms2/HeadCircumference.yaml
deleted file mode 100644
index c55d302bbc..0000000000
--- a/src/schema/terms2/HeadCircumference.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HeadCircumference
-description: |
-  RECOMMENDED. Circumference of the participants head, expressed in cm (e.g., 58).
diff --git a/src/schema/terms2/HeadCoilCoordinateSystem.yaml b/src/schema/terms2/HeadCoilCoordinateSystem.yaml
deleted file mode 100644
index d5ebaa6be0..0000000000
--- a/src/schema/terms2/HeadCoilCoordinateSystem.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HeadCoilCoordinateSystem
-description: |
-  OPTIONAL. Defines the coordinate system for the coils. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in HeadCoilCoordinateSystemDescription.
diff --git a/src/schema/terms2/HeadCoilCoordinateSystemDescription.yaml b/src/schema/terms2/HeadCoilCoordinateSystemDescription.yaml
deleted file mode 100644
index 7cdb11207b..0000000000
--- a/src/schema/terms2/HeadCoilCoordinateSystemDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HeadCoilCoordinateSystemDescription
-description: |
-  OPTIONAL. Freeform text description or link to document describing the Head Coil coordinate system system in detail.
diff --git a/src/schema/terms2/HeadCoilCoordinateUnits.yaml b/src/schema/terms2/HeadCoilCoordinateUnits.yaml
deleted file mode 100644
index 7cd8c8acc4..0000000000
--- a/src/schema/terms2/HeadCoilCoordinateUnits.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HeadCoilCoordinateUnits
-description: |
-  OPTIONAL. Units of the coordinates of HeadCoilCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/HeadCoilCoordinates.yaml b/src/schema/terms2/HeadCoilCoordinates.yaml
deleted file mode 100644
index d09259bf5f..0000000000
--- a/src/schema/terms2/HeadCoilCoordinates.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HeadCoilCoordinates
-description: |
-  OPTIONAL. Key:value pairs describing head localization coil labels and their coordinates, interpreted following the HeadCoilCoordinateSystem, e.g., {NAS: [12.7,21.3,13.9], LPA: [5.2,11.3,9.6], RPA: [20.2,11.3,9.1]}. Note that coils are not always placed at locations that have a known anatomical name (e.g. for Elekta, Yokogawa systems); in that case generic labels can be used (e.g. {coil1: [12.2,21.3,12.3], coil2: [6.7,12.3,8.6], coil3: [21.9,11.0,8.1]} ).
diff --git a/src/schema/terms2/HeadCoilFrequency.yaml b/src/schema/terms2/HeadCoilFrequency.yaml
deleted file mode 100644
index 57a117e521..0000000000
--- a/src/schema/terms2/HeadCoilFrequency.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HeadCoilFrequency
-description: |
-  RECOMMENDED. List of frequencies (in Hz) used by the head localisation coils (HLC in CTF systems, HPI in Elekta, COH in BTi/4D) that track the subject’s head position in the MEG helmet (e.g. [293, 307, 314, 321])
diff --git a/src/schema/terms2/HowToAcknowledge.yaml b/src/schema/terms2/HowToAcknowledge.yaml
deleted file mode 100644
index 8fe30ba6cf..0000000000
--- a/src/schema/terms2/HowToAcknowledge.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: HowToAcknowledge
-description: |
-  OPTIONAL. Instructions how researchers using this dataset should acknowledge the original authors. This field can also be used to define a publication that should be cited in publications that use the dataset.
diff --git a/src/schema/terms2/InstitutionAddress.yaml b/src/schema/terms2/InstitutionAddress.yaml
deleted file mode 100644
index 5150ade679..0000000000
--- a/src/schema/terms2/InstitutionAddress.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: InstitutionAddress
-description: |
-  RECOMMENDED. The address of the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 0081 InstitutionAddress.
diff --git a/src/schema/terms2/InstitutionName.yaml b/src/schema/terms2/InstitutionName.yaml
deleted file mode 100644
index 363ac92bca..0000000000
--- a/src/schema/terms2/InstitutionName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: InstitutionName
-description: |
-  RECOMMENDED. The name of the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 0080 InstitutionName.
diff --git a/src/schema/terms2/InstitutionalDepartmentName.yaml b/src/schema/terms2/InstitutionalDepartmentName.yaml
deleted file mode 100644
index 6df30e0b84..0000000000
--- a/src/schema/terms2/InstitutionalDepartmentName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: InstitutionalDepartmentName
-description: |
-  RECOMMENDED. The department in the institution in charge of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 1040 Institutional Department Name.
diff --git a/src/schema/terms2/Instructions.yaml b/src/schema/terms2/Instructions.yaml
deleted file mode 100644
index ab22a1e6e9..0000000000
--- a/src/schema/terms2/Instructions.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: Instructions
-description: |
-  RECOMMENDED. Text of the instructions given to participants before the scan. This is especially important in context of resting state fMRI and distinguishing between eyes open and eyes closed paradigms.
diff --git a/src/schema/terms2/IntendedFor.yaml b/src/schema/terms2/IntendedFor.yaml
deleted file mode 100644
index 8e0efd1192..0000000000
--- a/src/schema/terms2/IntendedFor.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: IntendedFor
-description: |
-  OPTIONAL. Path or list of path relative to the subject subfolder pointing to the structural MRI, possibly of different types if a list is specified, to be used with the MEG recording. The path(s) need(s) to use forward slashes instead of backward slashes (e.g. ses-/anat/sub-01_T1w.nii.gz).
diff --git a/src/schema/terms2/InversionTime.yaml b/src/schema/terms2/InversionTime.yaml
deleted file mode 100644
index 91977a5adf..0000000000
--- a/src/schema/terms2/InversionTime.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: InversionTime
-description: |
-  RECOMMENDED. The inversion time (TI) for the acquisition, specified in seconds. Inversion time is the time after the middle of inverting RF pulse to middle of excitation pulse to detect the amount of longitudinal magnetization. Corresponds to DICOM Tag 0018, 0082 Inversion Time (please note that the DICOM term is in milliseconds not seconds).
diff --git a/src/schema/terms2/License.yaml b/src/schema/terms2/License.yaml
deleted file mode 100644
index ac9f72b0cc..0000000000
--- a/src/schema/terms2/License.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: License
-description: |
-  RECOMMENDED. What license is this dataset distributed under? The use of license name abbreviations is suggested for specifying a license. A list of common licenses with suggested abbreviations can be found in Appendix II.
diff --git a/src/schema/terms2/MEGChannelCount.yaml b/src/schema/terms2/MEGChannelCount.yaml
deleted file mode 100644
index c2e6635552..0000000000
--- a/src/schema/terms2/MEGChannelCount.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MEGChannelCount
-description: |
-  RECOMMENDED. Number of MEG channels (e.g. 275)
diff --git a/src/schema/terms2/MEGCoordinateSystem.yaml b/src/schema/terms2/MEGCoordinateSystem.yaml
deleted file mode 100644
index 63ef731527..0000000000
--- a/src/schema/terms2/MEGCoordinateSystem.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MEGCoordinateSystem
-description: |
-  REQUIRED. Defines the coordinate system for the MEG sensors. See Appendix VIII: preferred names of Coordinate systems. If Other, provide definition of the coordinate system in [MEGCoordinateSystemDescription].
diff --git a/src/schema/terms2/MEGCoordinateSystemDescription.yaml b/src/schema/terms2/MEGCoordinateSystemDescription.yaml
deleted file mode 100644
index dcbcbe5133..0000000000
--- a/src/schema/terms2/MEGCoordinateSystemDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MEGCoordinateSystemDescription
-description: |
-  OPTIONAL. Freeform text description or link to document describing the MEG coordinate system system in detail.
diff --git a/src/schema/terms2/MEGCoordinateUnits.yaml b/src/schema/terms2/MEGCoordinateUnits.yaml
deleted file mode 100644
index 014f27d33d..0000000000
--- a/src/schema/terms2/MEGCoordinateUnits.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MEGCoordinateUnits
-description: |
-  REQUIRED. Units of the coordinates of MEGCoordinateSystem. MUST be m, cm, or mm.
diff --git a/src/schema/terms2/MEGREFChannelCount.yaml b/src/schema/terms2/MEGREFChannelCount.yaml
deleted file mode 100644
index 29f5dd93fa..0000000000
--- a/src/schema/terms2/MEGREFChannelCount.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MEGREFChannelCount
-description: |
-  RECOMMENDED. Number of MEG reference channels (e.g. 23). For systems without such channels (e.g. Neuromag Vectorview), MEGREFChannelCount=0
diff --git a/src/schema/terms2/MRTransmitCoilSequence.yaml b/src/schema/terms2/MRTransmitCoilSequence.yaml
deleted file mode 100644
index f443af45df..0000000000
--- a/src/schema/terms2/MRTransmitCoilSequence.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MRTransmitCoilSequence
-description: |
-  RECOMMENDED. This is a relevant field if a non-standard transmit coil is used. Corresponds to DICOM Tag 0018, 9049 MR Transmit Coil Sequence
diff --git a/src/schema/terms2/MagneticFieldStrength.yaml b/src/schema/terms2/MagneticFieldStrength.yaml
deleted file mode 100644
index f90d13a79b..0000000000
--- a/src/schema/terms2/MagneticFieldStrength.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MagneticFieldStrength
-description: |
-  RECOMMENDED. Nominal field strength of MR magnet in Tesla. Corresponds to DICOM Tag 0018,0087 Magnetic Field Strength
diff --git a/src/schema/terms2/Manufacturer.yaml b/src/schema/terms2/Manufacturer.yaml
deleted file mode 100644
index 2a9bfdd255..0000000000
--- a/src/schema/terms2/Manufacturer.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: Manufacturer
-description: |
-  RECOMMENDED. Manufacturer of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 0070 Manufacturer
diff --git a/src/schema/terms2/ManufacturersModelName.yaml b/src/schema/terms2/ManufacturersModelName.yaml
deleted file mode 100644
index 002be2185d..0000000000
--- a/src/schema/terms2/ManufacturersModelName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ManufacturersModelName
-description: |
-  RECOMMENDED. Manufacturer's model name of the equipment that produced the composite instances. Corresponds to DICOM Tag 0008, 1090 Manufacturers Model Name
diff --git a/src/schema/terms2/MatrixCoilMode.yaml b/src/schema/terms2/MatrixCoilMode.yaml
deleted file mode 100644
index 28b8d63f78..0000000000
--- a/src/schema/terms2/MatrixCoilMode.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MatrixCoilMode
-description: |
-  RECOMMENDED. (If used) A method for reducing the number of independent channels by combining in analog the signals from multiple coil elements. There are typically different default modes when using un-accelerated or accelerated (e.g. GRAPPA, SENSE) imaging
diff --git a/src/schema/terms2/MaxMovement.yaml b/src/schema/terms2/MaxMovement.yaml
deleted file mode 100644
index 23f3ae8fc1..0000000000
--- a/src/schema/terms2/MaxMovement.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MaxMovement
-description: |
-  RECOMMENDED. Maximum head movement (in mm) detected during the recording, as measured by the head localisation coils (e.g., 4.8)
diff --git a/src/schema/terms2/MiscChannelCount.yaml b/src/schema/terms2/MiscChannelCount.yaml
deleted file mode 100644
index 90bebad212..0000000000
--- a/src/schema/terms2/MiscChannelCount.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MiscChannelCount
-description: |
-  RECOMMENDED. Number of miscellaneous analog channels for auxiliary signals.
diff --git a/src/schema/terms2/MultibandAccelerationFactor.yaml b/src/schema/terms2/MultibandAccelerationFactor.yaml
deleted file mode 100644
index 633ce35bd3..0000000000
--- a/src/schema/terms2/MultibandAccelerationFactor.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: MultibandAccelerationFactor
-description: |
-  RECOMMENDED. The multiband factor, for multiband acquisitions.
diff --git a/src/schema/terms2/Name.yaml b/src/schema/terms2/Name.yaml
deleted file mode 100644
index c7a5f5a8c3..0000000000
--- a/src/schema/terms2/Name.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: Name
-description: |
-  REQUIRED. Name of the dataset.
diff --git a/src/schema/terms2/NegativeContrast.yaml b/src/schema/terms2/NegativeContrast.yaml
deleted file mode 100644
index 4aacc12e51..0000000000
--- a/src/schema/terms2/NegativeContrast.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: NegativeContrast
-description: |
-  OPTIONAL. Boolean (true or false) value specifying whether increasing voxel intensity (within sample voxels) denotes a decreased value with respect to the contrast suffix. This is commonly the case when Cerebral Blood Volume is estimated via usage of a contrast agent in conjunction with a T2* weighted acquisition protocol.
diff --git a/src/schema/terms2/NonlinearGradientCorrection.yaml b/src/schema/terms2/NonlinearGradientCorrection.yaml
deleted file mode 100644
index 5da8975300..0000000000
--- a/src/schema/terms2/NonlinearGradientCorrection.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: NonlinearGradientCorrection
-description: |
-  RECOMMENDED. Boolean stating if the image saved has been corrected for gradient nonlinearities by the scanner sequence.
diff --git a/src/schema/terms2/NumberOfVolumesDiscardedByScanner.yaml b/src/schema/terms2/NumberOfVolumesDiscardedByScanner.yaml
deleted file mode 100644
index 895b4d4521..0000000000
--- a/src/schema/terms2/NumberOfVolumesDiscardedByScanner.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: NumberOfVolumesDiscardedByScanner
-description: |
-  RECOMMENDED. Number of volumes (dummy scans) discarded by the scanner (as opposed to those discarded by the user post hoc) before saving the imaging file. For example, a sequence that automatically discards the first 4 volumes before saving would have this field as 4. A sequence that doesn't discard dummy scans would have this set to 0. Please note that the onsets recorded in the event.tsv file should always refer to the beginning of the acquisition of the first volume in the corresponding imaging file - independent of the value of NumberOfVolumesDiscardedByScanner field.
diff --git a/src/schema/terms2/NumberOfVolumesDiscardedByUser.yaml b/src/schema/terms2/NumberOfVolumesDiscardedByUser.yaml
deleted file mode 100644
index 8ea3cd46d5..0000000000
--- a/src/schema/terms2/NumberOfVolumesDiscardedByUser.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: NumberOfVolumesDiscardedByUser
-description: |
-  RECOMMENDED. Number of volumes (also known as dummy scans) discarded by the user before including the file in the dataset. If possible, including all of the volumes is strongly recommended. Please note that the onsets recorded in the event.tsv file should always refer to the beginning of the acquisition of the first volume in the corresponding imaging file - independent of the value of NumberOfVolumesDiscardedByUser field.
diff --git a/src/schema/terms2/NumberShots.yaml b/src/schema/terms2/NumberShots.yaml
deleted file mode 100644
index 753ecc3eae..0000000000
--- a/src/schema/terms2/NumberShots.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: NumberShots
-description: |
-  RECOMMENDED. The number of RF excitations need to reconstruct a slice or volume. Please mind that this is not the same as Echo Train Length which denotes the number of lines of k-space collected after an excitation.
diff --git a/src/schema/terms2/ParallelAcquisitionTechnique.yaml b/src/schema/terms2/ParallelAcquisitionTechnique.yaml
deleted file mode 100644
index ae028066e9..0000000000
--- a/src/schema/terms2/ParallelAcquisitionTechnique.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ParallelAcquisitionTechnique
-description: |
-  RECOMMENDED. The type of parallel imaging used (e.g. GRAPPA, SENSE). Corresponds to DICOM Tag 0018, 9078 Parallel Acquisition Technique.
diff --git a/src/schema/terms2/ParallelReductionFactorInPlane.yaml b/src/schema/terms2/ParallelReductionFactorInPlane.yaml
deleted file mode 100644
index 0c46691285..0000000000
--- a/src/schema/terms2/ParallelReductionFactorInPlane.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ParallelReductionFactorInPlane
-description: |
-  RECOMMENDED. The parallel imaging (e.g, GRAPPA) factor. Use the denominator of the fraction of k-space encoded for each slice. For example, 2 means half of k-space is encoded. Corresponds to DICOM Tag 0018, 9069 Parallel Reduction Factor In-plane.
diff --git a/src/schema/terms2/PartialFourier.yaml b/src/schema/terms2/PartialFourier.yaml
deleted file mode 100644
index 4ee627f232..0000000000
--- a/src/schema/terms2/PartialFourier.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: PartialFourier
-description: |
-  RECOMMENDED. The fraction of partial Fourier information collected. Corresponds to DICOM Tag 0018, 9081 Partial Fourier.
diff --git a/src/schema/terms2/PartialFourierDirection.yaml b/src/schema/terms2/PartialFourierDirection.yaml
deleted file mode 100644
index ae167c3496..0000000000
--- a/src/schema/terms2/PartialFourierDirection.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: PartialFourierDirection
-description: |
-  RECOMMENDED. The direction where only partial Fourier information was collected. Corresponds to DICOM Tag 0018, 9036 Partial Fourier Direction.
diff --git a/src/schema/terms2/Phase.yaml b/src/schema/terms2/Phase.yaml
deleted file mode 100644
index 4abae27198..0000000000
--- a/src/schema/terms2/Phase.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: Phase
-description: |
-  phase
diff --git a/src/schema/terms2/PhaseEncodingDirection.yaml b/src/schema/terms2/PhaseEncodingDirection.yaml
deleted file mode 100644
index ab42354c44..0000000000
--- a/src/schema/terms2/PhaseEncodingDirection.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: PhaseEncodingDirection
-description: |
-  RECOMMENDED. Possible values: i, j, k, i-, j- k-. The letters i, j, kcorrespond to the first, second and third axis of the data in the NIFTI file. The polarity of the phase encoding is assumed to go from zero index to maximum index unless - sign is present (then the order is reversed - starting from the highest index instead of zero). PhaseEncodingDirection is defined as the direction along which phase is was modulated which may result in visible distortions. Note that this is not the same as the DICOM term InPlanePhaseEncodingDirection which can have ROW or COL values. This parameter is REQUIRED if corresponding fieldmap data is present or when using multiple runs with different phase encoding directions (which can be later used for field inhomogeneity correction).
diff --git a/src/schema/terms2/PowerLineFrequency.yaml b/src/schema/terms2/PowerLineFrequency.yaml
deleted file mode 100644
index f7bf94eff9..0000000000
--- a/src/schema/terms2/PowerLineFrequency.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: PowerLineFrequency
-description: |
-  REQUIRED. Frequency (in Hz) of the power grid at the geographical location of the MEG instrument (i.e. 50 or 60)
diff --git a/src/schema/terms2/PulseSequenceDetails.yaml b/src/schema/terms2/PulseSequenceDetails.yaml
deleted file mode 100644
index e2de6c3482..0000000000
--- a/src/schema/terms2/PulseSequenceDetails.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: PulseSequenceDetails
-description: |
-  RECOMMENDED. Information beyond pulse sequence type that identifies the specific pulse sequence used (i.e. Standard Siemens Sequence distributed with the VB17 software, Siemens WIP ### version #.##, or Sequence written by X using a version compiled on MM/DD/YYYY).
diff --git a/src/schema/terms2/PulseSequenceType.yaml b/src/schema/terms2/PulseSequenceType.yaml
deleted file mode 100644
index ad81c8d56d..0000000000
--- a/src/schema/terms2/PulseSequenceType.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: PulseSequenceType
-description: |
-  RECOMMENDED. A general description of the pulse sequence used for the scan (i.e. MPRAGE, Gradient Echo EPI, Spin Echo EPI, Multiband gradient echo EPI).
diff --git a/src/schema/terms2/ReceiveCoilActiveElements.yaml b/src/schema/terms2/ReceiveCoilActiveElements.yaml
deleted file mode 100644
index f2dba3ab22..0000000000
--- a/src/schema/terms2/ReceiveCoilActiveElements.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ReceiveCoilActiveElements
-description: |
-  RECOMMENDED. Information describing the active/selected elements of the receiver coil. This doesn’t correspond to a tag in the DICOM ontology. The vendor-defined terminology for active coil elements can go in this field. As an example, for Siemens, coil channels are typically not activated/selected individually, but rather in pre-defined selectable groups of individual channels, and the list of the groups of elements that are active/selected in any given scan populates the Coil String entry in Siemens’ private DICOM fields (e.g., HEA;HEP for the Siemens standard 32 ch coil when both the anterior and posterior groups are activated). This is a flexible field that can be used as most appropriate for a given vendor and coil to define the active coil elements. Since individual scans can sometimes not have the intended coil elements selected, it is preferable for this field to be populated directly from the DICOM for each individual scan, so that it can be used as a mechanism for checking that a given scan was collected with the intended coil elements selected
diff --git a/src/schema/terms2/ReceiveCoilName.yaml b/src/schema/terms2/ReceiveCoilName.yaml
deleted file mode 100644
index 71521b1cbb..0000000000
--- a/src/schema/terms2/ReceiveCoilName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ReceiveCoilName
-description: |
-  RECOMMENDED. Information describing the receiver coil. Corresponds to DICOM Tag 0018, 1250 Receive Coil Name, although not all vendors populate that DICOM Tag, in which case this field can be derived from an appropriate private DICOM field
diff --git a/src/schema/terms2/RecordingDuration.yaml b/src/schema/terms2/RecordingDuration.yaml
deleted file mode 100644
index 278b70af63..0000000000
--- a/src/schema/terms2/RecordingDuration.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: RecordingDuration
-description: |
-  RECOMMENDED. Length of the recording in seconds (e.g. 3600)
diff --git a/src/schema/terms2/RecordingType.yaml b/src/schema/terms2/RecordingType.yaml
deleted file mode 100644
index 96c164c273..0000000000
--- a/src/schema/terms2/RecordingType.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: RecordingType
-description: |
-  RECOMMENDED. Defines whether the recording is continuous or epoched; this latter limited to time windows about events of interest (e.g., stimulus presentations, subject responses etc.)
diff --git a/src/schema/terms2/ReferencesAndLinks.yaml b/src/schema/terms2/ReferencesAndLinks.yaml
deleted file mode 100644
index b382d38055..0000000000
--- a/src/schema/terms2/ReferencesAndLinks.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ReferencesAndLinks
-description: |
-  OPTIONAL. List of references to publication that contain information on the dataset, or links.
diff --git a/src/schema/terms2/RepetitionTime.yaml b/src/schema/terms2/RepetitionTime.yaml
deleted file mode 100644
index 559a430a28..0000000000
--- a/src/schema/terms2/RepetitionTime.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: RepetitionTime
-description: |
-  REQUIRED. The time in seconds between the beginning of an acquisition of one volume and the beginning of acquisition of the volume following it (TR). Please note that this definition includes time between scans (when no data has been acquired) in case of sparse acquisition schemes. This value needs to be consistent with the pixdim[4] field (after accounting for units stored in xyzt units field) in the NIfTI header. This field is mutually exclusive with VolumeTiming and is derived from DICOM Tag 0018, 0080 and converted to seconds.
diff --git a/src/schema/terms2/SamplingFrequency.yaml b/src/schema/terms2/SamplingFrequency.yaml
deleted file mode 100644
index f09ff09837..0000000000
--- a/src/schema/terms2/SamplingFrequency.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: SamplingFrequency
-description: |
-  REQUIRED. Sampling frequency (in Hz) of all the data in the recording, regardless of their type (e.g., 2400)
diff --git a/src/schema/terms2/ScanOptions.yaml b/src/schema/terms2/ScanOptions.yaml
deleted file mode 100644
index 54821bccae..0000000000
--- a/src/schema/terms2/ScanOptions.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ScanOptions
-description: |
-  RECOMMENDED. Parameters of ScanningSequence. Corresponds to DICOM Tag 0018, 0022 Scan Options.
diff --git a/src/schema/terms2/ScanningSequence.yaml b/src/schema/terms2/ScanningSequence.yaml
deleted file mode 100644
index 50cbe95c17..0000000000
--- a/src/schema/terms2/ScanningSequence.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: ScanningSequence
-description: |
-  RECOMMENDED. Description of the type of data acquired. Corresponds to DICOM Tag 0018, 0020 Scanning Sequence.
diff --git a/src/schema/terms2/SequenceName.yaml b/src/schema/terms2/SequenceName.yaml
deleted file mode 100644
index 964bc0df94..0000000000
--- a/src/schema/terms2/SequenceName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: SequenceName
-description: |
-  RECOMMENDED. Manufacturer’s designation of the sequence name. Corresponds to DICOM Tag 0018, 0024 Sequence Name.
diff --git a/src/schema/terms2/SequenceVariant.yaml b/src/schema/terms2/SequenceVariant.yaml
deleted file mode 100644
index bf1e296088..0000000000
--- a/src/schema/terms2/SequenceVariant.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: SequenceVariant
-description: |
-  RECOMMENDED. Variant of the ScanningSequence. Corresponds to DICOM Tag 0018, 0021 Sequence Variant.
diff --git a/src/schema/terms2/SliceEncodingDirection.yaml b/src/schema/terms2/SliceEncodingDirection.yaml
deleted file mode 100644
index 9a1cbbb481..0000000000
--- a/src/schema/terms2/SliceEncodingDirection.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: SliceEncodingDirection
-description: |
-  RECOMMENDED. Possible values: i, j, k, i-, j-, k- (the axis of the NIfTI data along which slices were acquired, and the direction in which SliceTiming is defined with respect to). i, j, k identifiers correspond to the first, second and third axis of the data in the NIfTI file. A - sign indicates that the contents of SliceTiming are defined in reverse order - that is, the first entry corresponds to the slice with the largest index, and the final entry corresponds to slice index zero. When present, the axis defined by SliceEncodingDirection needs to be consistent with the slice dim field in the NIfTI header. When absent, the entries in SliceTiming must be in the order of increasing slice index as defined by the NIfTI header.
diff --git a/src/schema/terms2/SliceTiming.yaml b/src/schema/terms2/SliceTiming.yaml
deleted file mode 100644
index b80699226d..0000000000
--- a/src/schema/terms2/SliceTiming.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: SliceTiming
-description: |
-  RECOMMENDED. The time at which each slice was acquired within each volume (frame) of the acquisition. Slice timing is not slice order -- rather, it is a list of times (in JSON format) containing the time (in seconds) of each slice acquisition in relation to the beginning of volume acquisition. The list goes through the slices along the slice axis in the slice encoding dimension (see below). Note that to ensure the proper interpretation of the SliceTiming field, it is important to check if the OPTIONAL SliceEncodingDirection exists. In particular, if SliceEncodingDirection is negative, the entries in SliceTiming are defined in reverse order with respect to the slice axis (i.e., the final entry in the SliceTiming list is the time of acquisition of slice 0). This parameter is REQUIRED for sparse sequences that do not have the DelayTimefield set. In addition without this parameter slice time correction will not be possible.
diff --git a/src/schema/terms2/SoftwareFilters.yaml b/src/schema/terms2/SoftwareFilters.yaml
deleted file mode 100644
index b7cfbc7653..0000000000
--- a/src/schema/terms2/SoftwareFilters.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: SoftwareFilters
-description: |
-  REQUIRED. List of temporal and/or spatial software filters applied, or ideally key:value pairs of pre-applied software filters and their parameter values: e.g., {SSS: {frame: head, badlimit: 7}}, {SpatialCompensation: {GradientOrder: Order of the gradient compensation}}. Write n/a if no software filters applied.
diff --git a/src/schema/terms2/SoftwareVersions.yaml b/src/schema/terms2/SoftwareVersions.yaml
deleted file mode 100644
index 599d78d1df..0000000000
--- a/src/schema/terms2/SoftwareVersions.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: SoftwareVersions
-description: |
-  RECOMMENDED. Manufacturer’s designation of software version of the equipment that produced the composite instances. Corresponds to DICOM Tag 0018, 1020 Software Versions
diff --git a/src/schema/terms2/StartTime.yaml b/src/schema/terms2/StartTime.yaml
deleted file mode 100644
index f5ddea2c3d..0000000000
--- a/src/schema/terms2/StartTime.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: StartTime
-description: |
-  REQUIRED. Start time in seconds in relation to the start of acquisition of the first data sample in the corresponding neural dataset (negative values are allowed).
diff --git a/src/schema/terms2/StationName.yaml b/src/schema/terms2/StationName.yaml
deleted file mode 100644
index 7a84026866..0000000000
--- a/src/schema/terms2/StationName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: StationName
-description: |
-  RECOMMENDED. Institution defined name of the machine that produced the composite instances. Corresponds to DICOM Tag 0008, 1010 Station Name
diff --git a/src/schema/terms2/SubjectArtefactDescription.yaml b/src/schema/terms2/SubjectArtefactDescription.yaml
deleted file mode 100644
index f53c452c0b..0000000000
--- a/src/schema/terms2/SubjectArtefactDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: SubjectArtefactDescription
-description: |
-  RECOMMENDED. Freeform description of the observed subject artefact and its possible cause (e.g. Vagus Nerve Stimulator, non-removable implant). If this field is set to n/a, it will be interpreted as absence of major source of artifacts except cardiac and blinks.
diff --git a/src/schema/terms2/T1 Rho map.yaml b/src/schema/terms2/T1 Rho map.yaml
deleted file mode 100644
index c14f2dc3ad..0000000000
--- a/src/schema/terms2/T1 Rho map.yaml	
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: T1 Rho map
-description: |
-  T1 rho
diff --git a/src/schema/terms2/T1 weighted.yaml b/src/schema/terms2/T1 weighted.yaml
deleted file mode 100644
index fb69b0c847..0000000000
--- a/src/schema/terms2/T1 weighted.yaml	
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: T1 weighted
-description: |
-  T1w
diff --git a/src/schema/terms2/T1w.yaml b/src/schema/terms2/T1w.yaml
deleted file mode 100644
index dbeb8b7c7f..0000000000
--- a/src/schema/terms2/T1w.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: T1w
-description: |
-  T1w
diff --git a/src/schema/terms2/T2 weighted.yaml b/src/schema/terms2/T2 weighted.yaml
deleted file mode 100644
index c8f535c17d..0000000000
--- a/src/schema/terms2/T2 weighted.yaml	
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: T2 weighted
-description: |
-  T2w
diff --git a/src/schema/terms2/T2*.yaml b/src/schema/terms2/T2*.yaml
deleted file mode 100644
index fb8d79f880..0000000000
--- a/src/schema/terms2/T2*.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: T2*
-description: |
-  T2star
diff --git a/src/schema/terms2/T2w.yaml b/src/schema/terms2/T2w.yaml
deleted file mode 100644
index 28cd9daf15..0000000000
--- a/src/schema/terms2/T2w.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: T2w
-description: |
-  T2w
diff --git a/src/schema/terms2/TaskDescription.yaml b/src/schema/terms2/TaskDescription.yaml
deleted file mode 100644
index d39ec83e2a..0000000000
--- a/src/schema/terms2/TaskDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: TaskDescription
-description: |
-  RECOMMENDED. Longer description of the task.
diff --git a/src/schema/terms2/TaskName.yaml b/src/schema/terms2/TaskName.yaml
deleted file mode 100644
index fc5546311d..0000000000
--- a/src/schema/terms2/TaskName.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: TaskName
-description: |
-  REQUIRED. Name of the task. No two tasks should have the same name. Task label (task-) included in the file name is derived from this field by removing all non alphanumeric ([a-zA-Z0-9]) characters. For example task name faces n-back will corresponds to task label facesnback. A RECOMMENDED convention is to name resting state task using labels beginning with rest.
diff --git a/src/schema/terms2/TotalReadoutTime.yaml b/src/schema/terms2/TotalReadoutTime.yaml
deleted file mode 100644
index d4b8cd3b17..0000000000
--- a/src/schema/terms2/TotalReadoutTime.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: TotalReadoutTime
-description: |
-  RECOMMENDED. This is actually the effective total readout time , defined as the readout duration, specified in seconds, that would have generated data with the given level of distortion. It is NOT the actual, physical duration of the readout train. If EffectiveEchoSpacing has been properly computed, it is just EffectiveEchoSpacing * (ReconMatrixPE - 1).3. This parameter is REQUIRED if corresponding field/distortion maps acquired with opposing phase encoding directions are present (see 8.9.4).
diff --git a/src/schema/terms2/TriggerChannelCount.yaml b/src/schema/terms2/TriggerChannelCount.yaml
deleted file mode 100644
index 8ea133b872..0000000000
--- a/src/schema/terms2/TriggerChannelCount.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: TriggerChannelCount
-description: |
-  RECOMMENDED. Number of channels for digital (TTL bit level) trigger.
diff --git a/src/schema/terms2/VolumeTiming.yaml b/src/schema/terms2/VolumeTiming.yaml
deleted file mode 100644
index 152c17edce..0000000000
--- a/src/schema/terms2/VolumeTiming.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: VolumeTiming
-description: |
-  REQUIRED. The time at which each volume was acquired during the acquisition. It is described using a list of times (in JSON format) referring to the onset of each volume in the BOLD series. The list must have the same length as the BOLD series, and the values must be non-negative and monotonically increasing. This field is mutually exclusive with RepetitionTime and DelayTime. If defined, this requires acquisition time (TA) be defined via either SliceTiming or AcquisitionDuration be defined.
diff --git a/src/schema/terms2/dimension.yaml b/src/schema/terms2/dimension.yaml
deleted file mode 100644
index 3e90036317..0000000000
--- a/src/schema/terms2/dimension.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: dimension
-description: |
-  OPTIONAL. Size of the group (grid/strip/probe) that this electrode belongs to. Must be of form [AxB] with the smallest dimension first (e.g., [1x8]).
diff --git a/src/schema/terms2/duration.yaml b/src/schema/terms2/duration.yaml
deleted file mode 100644
index a5121c0d05..0000000000
--- a/src/schema/terms2/duration.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: duration
-description: |
-  REQUIRED. Duration of the event (measured from onset) in seconds. Must always be either zero or positive. A duration value of zero implies that the delta function or event is so short as to be effectively modeled as an impulse.
diff --git a/src/schema/terms2/group.yaml b/src/schema/terms2/group.yaml
deleted file mode 100644
index ee135ac4ea..0000000000
--- a/src/schema/terms2/group.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: group
-description: |
-  OPTIONAL. Which group of channels (grid/strip/seeg/depth) this channel belongs to. This is relevant because one group has one cable-bundle and noise can be shared. This can be a name or number. Note that any groups specified in electrodes.tsv must match those present here.
diff --git a/src/schema/terms2/hemisphere.yaml b/src/schema/terms2/hemisphere.yaml
deleted file mode 100644
index 9548cdaa7a..0000000000
--- a/src/schema/terms2/hemisphere.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: hemisphere
-description: |
-  OPTIONAL. Optional field to specify the hemisphere in which the electrode is placed, one of [L or R] (use capital).
diff --git a/src/schema/terms2/high_cutoff.yaml b/src/schema/terms2/high_cutoff.yaml
deleted file mode 100644
index 87b6236219..0000000000
--- a/src/schema/terms2/high_cutoff.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: high_cutoff
-description: |
-  OPTIONAL. Frequencies used for the low-pass filter applied to the channel in Hz. If no low-pass filter applied, use n/a. Note that hardware anti-aliasing in A/D conversion of all MEG/EEG electronics applies a low-pass filter; specify its frequency here if applicable.
diff --git a/src/schema/terms2/iEEGCoordinateProcessingDescription.yaml b/src/schema/terms2/iEEGCoordinateProcessingDescription.yaml
deleted file mode 100644
index f24dbf2346..0000000000
--- a/src/schema/terms2/iEEGCoordinateProcessingDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGCoordinateProcessingDescription
-description: |
-  RECOMMENDED. Has any post-processing (such as projection) been done on the electrode positions (e.g., surface_projection, none).
diff --git a/src/schema/terms2/iEEGCoordinateProcessingReference.yaml b/src/schema/terms2/iEEGCoordinateProcessingReference.yaml
deleted file mode 100644
index 2c11809749..0000000000
--- a/src/schema/terms2/iEEGCoordinateProcessingReference.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGCoordinateProcessingReference
-description: |
-  RECOMMENDED. A reference to a paper that defines in more detail the method used to localize the electrodes and to post-process the electrode positions. .
diff --git a/src/schema/terms2/iEEGCoordinateSystem.yaml b/src/schema/terms2/iEEGCoordinateSystem.yaml
deleted file mode 100644
index 9017a0032c..0000000000
--- a/src/schema/terms2/iEEGCoordinateSystem.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGCoordinateSystem
-description: |
-  REQUIRED. Defines the coordinate system for the iEEG electrodes. See Appendix VIII for a list of restricted keywords. If positions correspond to pixel indices in a 2D image (of either a volume-rendering, surface-rendering, operative photo, or operative drawing), this must be Pixels. For more information, see the section on 2D coordinate systems
diff --git a/src/schema/terms2/iEEGCoordinateSystemDescription.yaml b/src/schema/terms2/iEEGCoordinateSystemDescription.yaml
deleted file mode 100644
index 530d961d33..0000000000
--- a/src/schema/terms2/iEEGCoordinateSystemDescription.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGCoordinateSystemDescription
-description: |
-  RECOMMENDED. Freeform text description or link to document describing the iEEG coordinate system system in detail (e.g., Coordinate system with the origin at anterior commissure (AC), negative y-axis going through the posterior commissure (PC), z-axis going to a mid-hemisperic point which lies superior to the AC-PC line, x-axis going to the right).
diff --git a/src/schema/terms2/iEEGCoordinateUnits.yaml b/src/schema/terms2/iEEGCoordinateUnits.yaml
deleted file mode 100644
index f7a8c66de3..0000000000
--- a/src/schema/terms2/iEEGCoordinateUnits.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGCoordinateUnits
-description: |
-  REQUIRED. Units of the electrodes.tsv, MUST be m, mm, cm or pixels.
diff --git a/src/schema/terms2/iEEGElectrodeGroups.yaml b/src/schema/terms2/iEEGElectrodeGroups.yaml
deleted file mode 100644
index 74700fc778..0000000000
--- a/src/schema/terms2/iEEGElectrodeGroups.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGElectrodeGroups
-description: |
-  RECOMMENDED. Field to describe the way electrodes are grouped into strips, grids or depth probes e.g., {grid1: 10x8 grid on left temporal pole, strip2: 1x8 electrode strip on xxx}.
diff --git a/src/schema/terms2/iEEGGround.yaml b/src/schema/terms2/iEEGGround.yaml
deleted file mode 100644
index 386153c4d0..0000000000
--- a/src/schema/terms2/iEEGGround.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGGround
-description: |
-  RECOMMENDED. Description of the location of the ground electrode (e.g., placed on right mastoid (M2)).
diff --git a/src/schema/terms2/iEEGPlacementScheme.yaml b/src/schema/terms2/iEEGPlacementScheme.yaml
deleted file mode 100644
index 6bbab17531..0000000000
--- a/src/schema/terms2/iEEGPlacementScheme.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGPlacementScheme
-description: |
-  RECOMMENDED. Freeform description of the placement of the iEEG electrodes. Left/right/bilateral/depth/surface (e.g., left frontal grid and bilateral hippocampal depth or surface strip and STN depth or clinical indication bitemporal, bilateral temporal strips and left grid).
diff --git a/src/schema/terms2/iEEGReference.yaml b/src/schema/terms2/iEEGReference.yaml
deleted file mode 100644
index ead971abe9..0000000000
--- a/src/schema/terms2/iEEGReference.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: iEEGReference
-description: |
-  REQUIRED. General description of the reference scheme used and (when applicable) of location of the reference electrode in the raw recordings (e.g., left mastoid, bipolar, T01 for electrode with name T01, intracranial electrode on top of a grid, not included with data, upside down electrode). If different channels have a different reference, this field should have a general description and the channel specific reference should be defined in the channels.tsv file.
diff --git a/src/schema/terms2/impedance.yaml b/src/schema/terms2/impedance.yaml
deleted file mode 100644
index f4481f574c..0000000000
--- a/src/schema/terms2/impedance.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: impedance
-description: |
-  RECOMMENDED. Impedance of the electrode in kOhm
diff --git a/src/schema/terms2/low_cutoff.yaml b/src/schema/terms2/low_cutoff.yaml
deleted file mode 100644
index fb02c96c2b..0000000000
--- a/src/schema/terms2/low_cutoff.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: low_cutoff
-description: |
-  OPTIONAL. Frequencies used for the high-pass filter applied to the channel in Hz. If no high-pass filter applied, use n/a.
diff --git a/src/schema/terms2/material.yaml b/src/schema/terms2/material.yaml
deleted file mode 100644
index 80e7733cb6..0000000000
--- a/src/schema/terms2/material.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: material
-description: |
-  RECOMMENDED. Material of the electrode, e.g., Tin, Ag/AgCl, Gold
diff --git a/src/schema/terms2/notch.yaml b/src/schema/terms2/notch.yaml
deleted file mode 100644
index 1252600f25..0000000000
--- a/src/schema/terms2/notch.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: notch
-description: |
-  OPTIONAL. Frequencies used for the notch filter applied to the channel, in Hz. If no notch filter applied, use n/a.
diff --git a/src/schema/terms2/onset.yaml b/src/schema/terms2/onset.yaml
deleted file mode 100644
index 4b20f546e2..0000000000
--- a/src/schema/terms2/onset.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: onset
-description: |
-  REQUIRED. Onset (in seconds) of the event measured from the beginning of the acquisition of the first volume in the corresponding task imaging data file. If any acquired scans have been discarded before forming the imaging data file, ensure that a time of 0 corresponds to the first image stored. In other words negative numbers in onset are allowed.
diff --git a/src/schema/terms2/reference.yaml b/src/schema/terms2/reference.yaml
deleted file mode 100644
index a12786c7ec..0000000000
--- a/src/schema/terms2/reference.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: reference
-description: |
-  OPTIONAL. Name of the reference electrode(s) (not needed when it is common to all channels, in that case it can be specified in * eeg.json as EEGReference).
diff --git a/src/schema/terms2/response_time.yaml b/src/schema/terms2/response_time.yaml
deleted file mode 100644
index 2c281169d0..0000000000
--- a/src/schema/terms2/response_time.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: response_time
-description: |
-  OPTIONAL. Response time measured in seconds. A negative response time can be used to represent preemptive responses and n/a denotes a missed response.
diff --git a/src/schema/terms2/sample.yaml b/src/schema/terms2/sample.yaml
deleted file mode 100644
index 25b8ad2c03..0000000000
--- a/src/schema/terms2/sample.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: sample
-description: |
-  OPTIONAL. Onset of the event according to the sampling scheme of the recorded modality (i.e., referring to the raw data file that the events.tsv file accompanies).
diff --git a/src/schema/terms2/sampling_frequency.yaml b/src/schema/terms2/sampling_frequency.yaml
deleted file mode 100644
index e4437a8de5..0000000000
--- a/src/schema/terms2/sampling_frequency.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: sampling_frequency
-description: |
-  OPTIONAL. Sampling rate of the channel in Hz.
diff --git a/src/schema/terms2/size.yaml b/src/schema/terms2/size.yaml
deleted file mode 100644
index 7dc94b05a6..0000000000
--- a/src/schema/terms2/size.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: size
-description: |
-  REQUIRED. Surface area of the electrode, in mm^2.
diff --git a/src/schema/terms2/software_filters.yaml b/src/schema/terms2/software_filters.yaml
deleted file mode 100644
index e441b6202c..0000000000
--- a/src/schema/terms2/software_filters.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: software_filters
-description: |
-  OPTIONAL. List of temporal and/or spatial software filters applied (e.g. SSS, SpatialCompensation). Note that parameters should be defined in the general MEG sidecar .json file. Indicate n/a in the absence of software filters applied.
diff --git a/src/schema/terms2/status.yaml b/src/schema/terms2/status.yaml
deleted file mode 100644
index 3695e8db37..0000000000
--- a/src/schema/terms2/status.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: status
-description: |
-  OPTIONAL. Data quality observed on the channel (good/bad). A channel is considered bad if its data quality is compromised by excessive noise. Description of noise type SHOULD be provided in [status_description].
diff --git a/src/schema/terms2/status_description.yaml b/src/schema/terms2/status_description.yaml
deleted file mode 100644
index f5a5171ae9..0000000000
--- a/src/schema/terms2/status_description.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: status_description
-description: |
-  OPTIONAL. Freeform text description of noise or artifact affecting data quality on the channel. It is meant to explain why the channel was declared bad in [status].
diff --git a/src/schema/terms2/stim_file.yaml b/src/schema/terms2/stim_file.yaml
deleted file mode 100644
index 6aedaf178c..0000000000
--- a/src/schema/terms2/stim_file.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
----
-name: stim_file
-description: |
-  OPTIONAL. Represents the location of the stimulus file (image, video, sound etc.) presented at the given onset time. There are no restrictions on the file formats of the stimuli files, but they should be stored in the /stimuli folder (under the root folder of the dataset; with optional subfolders). The values under the stim_file column correspond to a path relative to /stimuli. For example images/cat03.jpg will be translated to /stimuli/images/cat03.jpg.

From 3aa13241565c544bb95c066282900b8c1501dc69 Mon Sep 17 00:00:00 2001
From: Taylor Salo <tsalo006@fiu.edu>
Date: Fri, 2 Oct 2020 21:05:29 -0400
Subject: [PATCH 16/16] Update and add more terms.

---
 src/schema/terms/.json.yaml               | 4 ++++
 src/schema/terms/.nii.yaml                | 4 ++++
 src/schema/terms/CHANGES.yaml             | 6 ++++++
 src/schema/terms/DatasetType.yaml         | 6 ++++++
 src/schema/terms/EthicsApprovals.yaml     | 4 ++++
 src/schema/terms/GeneratedBy.yaml         | 4 ++++
 src/schema/terms/README.yaml              | 5 +++++
 src/schema/terms/SourceDatasets.yaml      | 5 +++++
 src/schema/terms/dataset_description.yaml | 5 +++++
 src/schema/terms/subject.yaml             | 3 ---
 10 files changed, 43 insertions(+), 3 deletions(-)
 create mode 100644 src/schema/terms/.json.yaml
 create mode 100644 src/schema/terms/.nii.yaml
 create mode 100644 src/schema/terms/CHANGES.yaml
 create mode 100644 src/schema/terms/DatasetType.yaml
 create mode 100644 src/schema/terms/EthicsApprovals.yaml
 create mode 100644 src/schema/terms/GeneratedBy.yaml
 create mode 100644 src/schema/terms/README.yaml
 create mode 100644 src/schema/terms/SourceDatasets.yaml
 create mode 100644 src/schema/terms/dataset_description.yaml

diff --git a/src/schema/terms/.json.yaml b/src/schema/terms/.json.yaml
new file mode 100644
index 0000000000..15d9221ef0
--- /dev/null
+++ b/src/schema/terms/.json.yaml
@@ -0,0 +1,4 @@
+---
+name: JSON
+description: |
+  A JSON file.
diff --git a/src/schema/terms/.nii.yaml b/src/schema/terms/.nii.yaml
new file mode 100644
index 0000000000..d04731a735
--- /dev/null
+++ b/src/schema/terms/.nii.yaml
@@ -0,0 +1,4 @@
+---
+name: Nifti
+description: |
+  A nifti file.
diff --git a/src/schema/terms/CHANGES.yaml b/src/schema/terms/CHANGES.yaml
new file mode 100644
index 0000000000..1cdcfacf22
--- /dev/null
+++ b/src/schema/terms/CHANGES.yaml
@@ -0,0 +1,6 @@
+---
+name: CHANGES
+description: |
+  Version history of the dataset (describing changes, updates and corrections) MAY be provided in the form of a CHANGES text file.
+  This file MUST follow the CPAN Changelog convention: http://search.cpan.org/~haarg/CPAN-Changes-0.400002/lib/CPAN/Changes/Spec.pod.
+  The CHANGES file MUST be either in ASCII or UTF-8 encoding.
diff --git a/src/schema/terms/DatasetType.yaml b/src/schema/terms/DatasetType.yaml
new file mode 100644
index 0000000000..6c0b9f07a0
--- /dev/null
+++ b/src/schema/terms/DatasetType.yaml
@@ -0,0 +1,6 @@
+---
+name: DatasetType
+description: |
+  The interpretaton of the dataset.
+  MUST be one of "raw" or "derivative".
+  For backwards compatibility, the default value is "raw".
diff --git a/src/schema/terms/EthicsApprovals.yaml b/src/schema/terms/EthicsApprovals.yaml
new file mode 100644
index 0000000000..435aedc3b7
--- /dev/null
+++ b/src/schema/terms/EthicsApprovals.yaml
@@ -0,0 +1,4 @@
+---
+name: Ethics Approvals
+description: |
+  List of ethics committee approvals of the research protocols and/or protocol identifiers.
diff --git a/src/schema/terms/GeneratedBy.yaml b/src/schema/terms/GeneratedBy.yaml
new file mode 100644
index 0000000000..95b0b89904
--- /dev/null
+++ b/src/schema/terms/GeneratedBy.yaml
@@ -0,0 +1,4 @@
+---
+name: Generated By
+description: |
+  List of [objects][object] with at least one element.
diff --git a/src/schema/terms/README.yaml b/src/schema/terms/README.yaml
new file mode 100644
index 0000000000..003f1984f5
--- /dev/null
+++ b/src/schema/terms/README.yaml
@@ -0,0 +1,5 @@
+---
+name: License
+description: |
+  In addition a free form text file (`README`) describing the dataset in more details SHOULD be provided.
+  The `README` file MUST be either in ASCII or UTF-8 encoding.
diff --git a/src/schema/terms/SourceDatasets.yaml b/src/schema/terms/SourceDatasets.yaml
new file mode 100644
index 0000000000..2e9b0cf4ff
--- /dev/null
+++ b/src/schema/terms/SourceDatasets.yaml
@@ -0,0 +1,5 @@
+---
+name: Source Datasets
+description: |
+  A list of [objects][object] specifying the locations and relevant attributes of all source datasets.
+  Valid fields in each object include `URL`, `DOI`, and `Version`.
diff --git a/src/schema/terms/dataset_description.yaml b/src/schema/terms/dataset_description.yaml
new file mode 100644
index 0000000000..bd6cbdcf41
--- /dev/null
+++ b/src/schema/terms/dataset_description.yaml
@@ -0,0 +1,5 @@
+---
+name: Dataset Description
+description: |
+  The file `dataset_description.json` is a JSON file describing the dataset.
+  Every dataset MUST include this file.
diff --git a/src/schema/terms/subject.yaml b/src/schema/terms/subject.yaml
index 1d809f1f69..396f00352e 100644
--- a/src/schema/terms/subject.yaml
+++ b/src/schema/terms/subject.yaml
@@ -1,7 +1,4 @@
 ---
 name: Subject
-class: entity
 description: |
   A person or animal participating in the study.
-# Entity-specific fields
-format: label