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Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
Published on: October 2, 2019
The effects of napping on cognitive function in preschoolers
Janet C Lam1, E Mark Mahone, Thornton Mason
1Department of Pediatrics, University of Maryland, Baltimore, MD, USA.
Journal of Developmental and Behavioral Pediatrics : JDBP
|January 11, 2011
Summary
Daytime napping negatively impacts cognitive function in preschoolers, with more napping linked to poorer vocabulary and attention. Nighttime sleep is more critical for cognitive performance in young children.
Area of Science:
- Child Development
- Neuroscience
- Sleep Science
Background:
- Preschool-aged children's sleep patterns, including napping, are crucial for cognitive development.
- Understanding the interplay between daytime napping and nighttime sleep is essential for optimizing cognitive function in early childhood.
Purpose of the Study:
- To investigate the relationship between daytime napping and cognitive function in preschool-aged children.
- To determine the differential impact of weekday napping versus nighttime sleep on cognitive performance.
Main Methods:
- Actigraphy was used to measure sleep and napping patterns in 59 children aged 3-5 years over 7 days.
- Neuropsychological testing assessed attention, response control, and vocabulary.
- Parental sleep logs and behavior ratings supplemented actigraphy data.
Main Results:
- Weekday napping was negatively correlated with vocabulary and auditory attention span.
- Nighttime sleep was positively correlated with vocabulary and negatively correlated with impulsive errors on a go/no-go task.
- Children napping more on weekdays also napped more on weekends, with weekday napping inversely related to nighttime sleep.
Conclusions:
- Daytime napping shows a negative correlation with neurocognitive function in preschoolers.
- Adequate nighttime sleep appears more critical for cognitive performance than napping.
- Nap cessation may indicate brain maturation, and reduced napping is not necessarily indicative of sleep deprivation if compensated by nighttime sleep.
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