Sleep maturation influences cognitive development of preterm toddlers
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...
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2021
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oai:doaj.org-article:8b22366577504ff58834c4d29a46fc532021-12-02T16:35:46ZSleep maturation influences cognitive development of preterm toddlers10.1038/s41598-021-95495-52045-2322https://doaj.org/article/8b22366577504ff58834c4d29a46fc532021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95495-5https://doaj.org/toc/2045-2322Abstract 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.Akiko AndoHidenobu OhtaYuko YoshimuraMachiko NakagawaYoko AsakaTakayo NakazawaYusuke MitaniYoshihisa OishiMasato MizushimaHiroyuki AdachiYosuke KaneshiKeita MoriokaRinshu ShimabukuroMichio HirataTakashi IkedaRika FukutomiKyoko KobayashiMiwa OzawaMasahiro TakeshimaAtsushi ManabeTsutomu TakahashiKazuo MishimaIsao KusakawaHitoshi YodaMitsuru KikuchiKazutoshi ChoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021) |
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Medicine R Science Q Akiko Ando Hidenobu Ohta Yuko Yoshimura Machiko Nakagawa Yoko Asaka Takayo Nakazawa Yusuke Mitani Yoshihisa Oishi Masato Mizushima Hiroyuki Adachi Yosuke Kaneshi Keita Morioka Rinshu Shimabukuro Michio Hirata Takashi Ikeda Rika Fukutomi Kyoko Kobayashi Miwa Ozawa Masahiro Takeshima Atsushi Manabe Tsutomu Takahashi Kazuo Mishima Isao Kusakawa Hitoshi Yoda Mitsuru Kikuchi Kazutoshi Cho Sleep maturation influences cognitive development of preterm toddlers |
| description |
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. |
| format |
article |
| author |
Akiko Ando Hidenobu Ohta Yuko Yoshimura Machiko Nakagawa Yoko Asaka Takayo Nakazawa Yusuke Mitani Yoshihisa Oishi Masato Mizushima Hiroyuki Adachi Yosuke Kaneshi Keita Morioka Rinshu Shimabukuro Michio Hirata Takashi Ikeda Rika Fukutomi Kyoko Kobayashi Miwa Ozawa Masahiro Takeshima Atsushi Manabe Tsutomu Takahashi Kazuo Mishima Isao Kusakawa Hitoshi Yoda Mitsuru Kikuchi Kazutoshi Cho |
| author_facet |
Akiko Ando Hidenobu Ohta Yuko Yoshimura Machiko Nakagawa Yoko Asaka Takayo Nakazawa Yusuke Mitani Yoshihisa Oishi Masato Mizushima Hiroyuki Adachi Yosuke Kaneshi Keita Morioka Rinshu Shimabukuro Michio Hirata Takashi Ikeda Rika Fukutomi Kyoko Kobayashi Miwa Ozawa Masahiro Takeshima Atsushi Manabe Tsutomu Takahashi Kazuo Mishima Isao Kusakawa Hitoshi Yoda Mitsuru Kikuchi Kazutoshi Cho |
| author_sort |
Akiko Ando |
| title |
Sleep maturation influences cognitive development of preterm toddlers |
| title_short |
Sleep maturation influences cognitive development of preterm toddlers |
| title_full |
Sleep maturation influences cognitive development of preterm toddlers |
| title_fullStr |
Sleep maturation influences cognitive development of preterm toddlers |
| title_full_unstemmed |
Sleep maturation influences cognitive development of preterm toddlers |
| title_sort |
sleep maturation influences cognitive development of preterm toddlers |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/8b22366577504ff58834c4d29a46fc53 |
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