-
A Meta-analysis of the Effects of an Afternoon Nap on Cognitive Function
- QIAN Liu, RU Taotao, CHEN Yuping, ZHANG Chenze, ZHOU Guofu
-
Psychological Development and Education. 2025, 41(2):
173-184.
doi:10.16187/j.cnki.issn1001-4918.2025.02.03
-
Abstract
(
)
HTML
(
)
PDF (1352KB)
(
)
Save
-
References |
Related Articles |
Metrics
In accordance with the PRISMA-Protocol, a meta-analysis of 42 studies (total sample size = 1751) was conducted to examine the effects of an afternoon nap on cognitive function and its moderator variables with task performance. Results showed that compared with the control condition, an afternoon nap had a moderate positive effect size on cognitive function (g = 0.59, k = 130, p < 0.001). Results of the subgroup analyses showed that the cognitive domain and age were significant moderators. An afternoon nap could improve executive function, declarative memory, and procedural memory, but not attention function; compared with the youth, the minor and the old could get more benefits from napping. Besides, other moderators (i.e., nap duration, experience with napping, sleep restriction the night before, and the time point of re-testing tasks after napping) had no incpact on the effects of napping.