How Sleep Timing and Time of Day Affect Preschoolers' Short-Term Memory for Places
Updated
Abstract
Evening-type preschoolers had better spatial working memory in the late afternoon than morning-types.
- No significant main or interaction effects of chronotype and time-of-day on spatial working memory measures were found.
- Evening-types showed lower average between search-total errors in the late afternoon compared to morning-types.
- Chronotype validation indicated that evening-types had later sleep midpoints on both weekdays and weekends.
- Findings suggest that time of day may influence spatial working memory performance in preschool children.
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Funding
Competing interests
All authors have seen and approved the final manuscript. Work for this study was performed at the Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR) and supported by the Singapore National Research Foundation under its Translational and Clinical Research (TCR) Flagship Programme and administered by the Singapore Ministry of Health’s National Medical Research Council (NMRC), Singapore-NMRC/TCR/004-NUS/2008; NMRC/TCR/012-NUHS/2014. Additional funding is provided by the Singapore Institute for Clinical Sciences, A*STAR, Singapore. Dr. Yap-Seng Chong received lecture fees from companies that sell nutritional products. They are part of an academic consortium that has received research funding from Abbott Nutrition, Nestec, and Danone. The other authors report no conflicts of interest.
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