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Sleep maturation influences cognitive development of preterm toddlers

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Title: Sleep maturation influences cognitive development of preterm toddlers
Authors: Ando, Akiko Browse this author
Ohta, Hidenobu Browse this author
Yoshimura, Yuko Browse this author
Nakagawa, Machiko Browse this author
Asaka, Yoko Browse this author
Nakazawa, Takayo Browse this author
Mitani, Yusuke Browse this author
Oishi, Yoshihisa Browse this author
Mizushima, Masato Browse this author
Adachi, Hiroyuki Browse this author
Kaneshi, Yosuke Browse this author
Morioka, Keita Browse this author
Shimabukuro, Rinshu Browse this author
Hirata, Michio Browse this author
Ikeda, Takashi Browse this author
Fukutomi, Rika Browse this author
Kobayashi, Kyoko Browse this author
Ozawa, Miwa Browse this author
Takeshima, Masahiro Browse this author
Manabe, Atsushi Browse this author
Takahashi, Tsutomu Browse this author
Mishima, Kazuo Browse this author
Kusakawa, Isao Browse this author
Yoda, Hitoshi Browse this author
Kikuchi, Mitsuru Browse this author
Cho, Kazutoshi Browse this author →KAKEN DB
Issue Date: 5-Aug-2021
Publisher: Nature Portfolio
Journal Title: Scientific reports
Volume: 11
Issue: 1
Start Page: 15921
Publisher DOI: 10.1038/s41598-021-95495-5
Abstract: Our recent study on full-term toddlers demonstrated that daytime nap properties affect the distribution ratio between nap and nighttime sleep duration in total sleep time but does not affect the overall total amount of daily sleep time. However, there is still no clear scientific consensus as to whether the ratio between naps and nighttime sleep or just daily total sleep duration itself is more important for healthy child development. In the current study, to gain an answer to this question, we examined the relationship between the sleep properties and the cognitive development of toddlers born prematurely using actigraphy and the Kyoto scale of psychological development (KSPD) test. 101 premature toddlers of approximately 1.5 years of age were recruited for the study. Actigraphy units were attached to their waist with an adjustable elastic belt for 7 consecutive days and a child sleep diary was completed by their parents. In the study, we found no significant correlation between either nap or nighttime sleep duration and cognitive development of the preterm toddlers. In contrast, we found that stable daily wake time was significantly associated with better cognitive development, suggesting that sleep regulation may contribute to the brain maturation of preterm toddlers.
Type: article
Appears in Collections:北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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