Things to discuss

[skjerns]

• How to ask for English Proficiency? (01_screning_questiosn)
  • prolific pre-screening
• how many cigarettes? (01_screening)
  • only use prolific prescreening -> only ask, no excl
• how to do balancing - problem with exclusion/noshow
• good study name for prolific?

Rickard et al (2015): five variables were identified as predictors of postdelay and (or) relative gain effects: data averaging, performance duration, time of testing, training duration, and elderly status

Rickard et al (2022/2015) found that sleep effects were eliminated when

• (a) Reactivation inhibition buildup: the duration of training blocks between breaks is reduced from the typical 30 s to 10 s, minimizing the accumulation of block-level reactive inhibition as well as more general task fatigue, two factors can inflate the postsleep gain estimate. | "Empirically, reactive inhibition refers to performance worseningthat can accumulate during a period of continuous training" [...] "worsening during each uninterrupted performance block but improving across blocks"

• (b) Circadian time of learning/delay: a 24-hr delay is used instead 12h [...] "XYZ suggest [...] ciracdian [...] negligible, however [...]". Time of testing has strong influence, time of training not. Also: Motivation!
  

• (c1) Test time: the postsleep gain effect is assessed using a learning curve continuity analysis rather than the nearly ubiquitous pretest-posttest difference score which can inflate the postsleep gain estimate due to averaging over online learning

• (c2): it involves averaging of results across the last few training blocks to compute a pretest result, and over the first few test blocks to compute a posttest resul [...] constituting a potential online learning confound that has been confirmed in our metaanalyses ->> make both blocks same length?

Rickard et al (2015) recommendations

• 10s learning blocks
• Testing same number of blocks
• curve fitting usage
• nap studies or varied delay (12h vs 24h)

Rickard et al (2015)

• However, the results also confirm strong moderating effects of 4 previously hypothesized variables: averaging in the calculation of prepost gain scores, build-up of reactive inhibition over training, time of testing, and training duration, along with 1 supplemental variable, elderly status. With those variables accounted for, there was no evidence that sleep enhances learning.
• Elderly: Those results raise the possibility that elderly subjects have an unusually long warm-up period in the test session, but that any effect that sleep may have on motor sequence performance occurs equivalently for the young and the elderly.