Document Detail


The effects of napping on cognitive function in preschoolers.
MedLine Citation:
PMID:  21217402     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To determine the relationship between napping and cognitive function in preschool-aged children.
METHODS: Daytime napping, nighttime sleep, and cognitive function were assessed in 59 typically developing children aged 3 to 5 years, who were enrolled in full-time childcare. Participants wore an actigraphy watch for 7 days to measure sleep and napping patterns and completed neuropsychological testing emphasizing attention, response control, and vocabulary. Parents of participants completed behavior ratings and sleep logs during the study. Sleep/wake cycles were scored with the Sadeh algorithm.
RESULTS: Children who napped more on weekdays were also more likely to nap during weekends. Weekday napping and nighttime sleep were inversely correlated, such that those who napped more slept less at night, although total weekday sleep remained relatively constant. Weekday napping was significantly (negatively) correlated with vocabulary and auditory attention span, and weekday nighttime sleep was positively correlated with vocabulary. Nighttime sleep was also significantly negatively correlated with performance, such that those who slept less at night made more impulsive errors on a computerized go/no-go test.
CONCLUSIONS: Daytime napping is actually negatively correlated with neurocognitive function in preschoolers. Nighttime sleep seems to be more critical for development of cognitive performance. Cessation of napping may serve as a developmental milestone of brain maturation. Children who nap less do not appear to be sleep deprived, especially if they compensate with increased nighttime sleep. An alternative explanation is that children who sleep less at night are sleep deprived and require a nap. A randomized trial of nap restriction would be the next step in understanding the relationship between napping and neurocognitive performance.
Authors:
Janet C Lam; E Mark Mahone; Thornton Mason; Steven M Scharf
Publication Detail:
Type:  Journal Article; Multicenter Study; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Journal of developmental and behavioral pediatrics : JDBP     Volume:  32     ISSN:  1536-7312     ISO Abbreviation:  J Dev Behav Pediatr     Publication Date:    2011 Feb-Mar
Date Detail:
Created Date:  2011-05-02     Completed Date:  2011-07-22     Revised Date:  2014-04-29    
Medline Journal Info:
Nlm Unique ID:  8006933     Medline TA:  J Dev Behav Pediatr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  90-7     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Actigraphy
Activity Cycles*
Child Development
Child, Preschool
Cognition*
Female
Humans
Male
Maryland
Sleep*
Grant Support
ID/Acronym/Agency:
K12 RR023250/RR/NCRR NIH HHS; K12 RR023250-05/RR/NCRR NIH HHS; K12RR023250/RR/NCRR NIH HHS; NIH HL074441/HL/NHLBI NIH HHS; P30 HD024061/HD/NICHD NIH HHS; P30 HD024061-22/HD/NICHD NIH HHS; P30HD-24061/HD/NICHD NIH HHS; U10 HL074441-05/HL/NHLBI NIH HHS
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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