Please use this identifier to cite or link to this item: https://doi.org/10.1371/journal.pone.0108100
Title: Comparing the effects of nocturnal sleep and daytime napping on declarative memory consolidation
Authors: Lo J.C. 
Dijk D.-J.
Groeger J.A.
Keywords: adult
Article
controlled study
daytime nap
declarative memory
female
human
human experiment
male
memory consolidation
mental task
night sleep
recall
semantic memory
sleep
sleep waking cycle
task performance
wakefulness
young adult
adolescent
comparative study
physiology
semantics
sleep
time
Adolescent
Adult
Female
Humans
Memory Consolidation
Semantics
Sleep
Time Factors
Young Adult
Issue Date: 2014
Citation: Lo J.C., Dijk D.-J., Groeger J.A. (2014). Comparing the effects of nocturnal sleep and daytime napping on declarative memory consolidation. PLoS ONE 9 (9) : e108100. ScholarBank@NUS Repository. https://doi.org/10.1371/journal.pone.0108100
Abstract: Nocturnal sleep and daytime napping facilitate memory consolidation for semantically related and unrelated word pairs. We contrasted forgetting of both kinds of materials across a 12-hour interval involving either nocturnal sleep or daytime wakefulness (experiment 1) and a 2-hour interval involving either daytime napping or wakefulness (experiment 2). Beneficial effects of post-learning nocturnal sleep and daytime napping were greater for unrelated word pairs (Cohen's d = 0.71 and 0.68) than for related ones (Cohen's d = 0.58 and 0.15). While the size of nocturnal sleep and daytime napping effects was similar for unrelated word pairs, for related pairs, the effect of nocturnal sleep was more prominent. Together, these findings suggest that sleep preferentially facilitates offline memory processing of materials that are more susceptible to forgetting. Copyright: © 2014 Lo et al.
Source Title: PLoS ONE
URI: https://scholarbank.nus.edu.sg/handle/10635/161771
ISSN: 19326203
DOI: 10.1371/journal.pone.0108100
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