Adolescents with 7 hours or less total rest time show longer 3-back response times, both acutely and averaged over the week¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Participants with 7 h or less rest the night before testing had longer 3-back response times than those with more (551.7 ± 148.1 vs. 514.5 ± 138.2 ms, p = 0.04), and the same held for weekly averages (570.3 ± 135.7 vs. 511.3 ± 143.7 ms, p = 0.03). → Stefansdottir 2020

Evidence¶

Stefansdottir 2020¶

Stefansdottir, R., Gundersen, H., Rognvaldsdottir, V., Lundervold, A. S., Gestsdottir, S., Gudmundsdottir, S. L., Chen, K. Y., Brychta, R. J. & Johannsson, E. (2020). Association between free-living sleep and memory and attention in healthy adolescents. Scientific Reports 10:16877. https://doi.org/10.1038/s41598-020-73774-x

q3 · i? · associational · r2

Exploratory categorical analysis dichotomizing total rest time at the 7-h group mean; the weekly version found "the 66 participants who averaged 7 h or less total rest time over the week had longer 3-back response times than the 94 participants who did not" (p = 0.03).

"We found that the 82 students with a rest duration of 7 h or less the night prior to cognitive testing had longer 3-back response times on than the 78 students with a rest duration of greater than 7 h (median ± interquartile range: 551.7 ± 148.1 vs. 514.5 ± 138.2 ms, p = 0.04; Fig. 1B, Table S3)"

Discussion¶

Related Claims¶

• Sleep the night before cognitive testing resembles weekly averages except for an earlier mid-sleep time — related
• Shorter time in bed the night before testing is associated with slower 3-back response times in older adolescents — related
• Weekly average sleep measures show no association with working memory performance in older adolescents — reports the opposite
• Older adolescents show high night-to-night variability in free-living sleep duration, which may obscure sleep-cognition associations — related
• Free-living sleep measures show no association with visual attention task performance in older adolescents — related
• Five nights of sleep restriction cause lower quiz performance in a simulated classroom among adolescents — related
• The association between sleep duration and school performance is nonlinear (p = 0.04) in generalized additive models — related
• Experimental sleep restriction causally extends adolescent sleep-loss effects beyond sleepiness to attention and learning — related