Cross-sectional evidences suggest a relationship between early childhood sleep and cognitive as well as socio-emotional functions. However, the casual relation has not been fully revealed. The current study aims to perform a randomized lab-based crossover nap restriction study on preschoolers, to determine the effects of sleep restriction on preschoolers empathy, prosocial behaviors as well as executive functions.
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Voltage of N2 and Late Positive Potential (LPP) components
Timeframe: 20 minutes after waking up from scheduled nap, or 20 minutes post nap restriction
Empathic pain rating
Timeframe: 20 minutes after waking up from scheduled nap, or 20 minutes post nap restriction