Regular sleep habits in toddlers are associated with social development and brain coherence

Iwatani, Yoshiko; Kagitani-Shimono, Kuriko; Ono, Azusa; Yamamoto, Tomoka; Mohri, Ikuko; Yoshizaki, Arika; Taniike, Masako

doi:https://doi.org/10.1016/j.sleep.2024.10.018

Regular sleep habits in toddlers are associated with social development and brain coherence

Iwatani, Yoshiko; Kagitani-Shimono, Kuriko; Ono, Azusa et al.

Sleep Medicine, 2024, 124, 531-539

アクセス数:1,065件（2025-08-14 18:48 集計）

固定URL: https://hdl.handle.net/11094/98427

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タイトル	Regular sleep habits in toddlers are associated with social development and brain coherence
著者	NRID 1000060724903 1000060724903 researchmap permalink y_iwatani y_iwatani Scopus Author ID 36992967200 36992967200 著者名 Iwatani, Yoshiko
	NRID 1000060403185 1000060403185 ORCID 0000-0001-9649-9499 0000-0001-9649-9499 researchmap permalink osaka_rengo osaka_rengo Scopus Author ID 13002542100 13002542100 著者名 Kagitani-Shimono, Kuriko
	著者名 Ono, Azusa
	NRID 1000030581558 1000030581558 researchmap permalink tomokayamamoto tomokayamamoto Scopus Author ID 55561973800 55561973800 ORCID 0000-0001-9809-3804 0000-0001-9809-3804 著者名 Yamamoto, Tomoka
	NRID 1000070399351 1000070399351 ORCID 0000-0002-1850-6347 0000-0002-1850-6347 researchmap permalink read0156483 read0156483 Scopus Author ID 6602234195 6602234195 著者名 Mohri, Ikuko
	NRID 1000090600552 1000090600552 researchmap permalink ayoshizaki ayoshizaki Scopus Author ID 37666333100 37666333100 著者名 Yoshizaki, Arika
	NRID 1000030263289 1000030263289 researchmap permalink read0185088 read0185088 Scopus Author ID 7004244133 7004244133 著者名 Taniike, Masako
キーワード等	Child
	Coherence
	Development
	Electroencephalography
	Eye-tracking
	Irregular sleep
内容	Iwatani Y., Kagitani-Shimono K., Ono A., et al. Regular sleep habits in toddlers are associated with social development and brain coherence. Sleep Medicine 124, 531 (2024); https://doi.org/10.1016/j.sleep.2024.10.018.
抄録	Objective: Although sleep habits are associated with the development of toddlers, factors affecting social development and brain function remain unclear. We aimed to elucidate the relationship between sleep habits and social development as well as brain coherence in toddlers. Methods: We used the data set at 1.5–2 years old, in the longitudinal study until 6 years old. We evaluated sleep parameters, such as average wake-up time, bedtime, nighttime sleep duration, total sleep duration, and the standard deviation (SD) of sleep habits. We also examined the development, including the social stimuli fixation percentage using Gazefinder® and electroencephalography (EEG) coherence between brain regions. Results: Seventy-two children (37 boys and 35 girls) were included. The fixation percentage for the human face was negatively correlated with the SD of the total sleep duration, nighttime sleep duration, nap duration, and bedtime (r = −0.516, p = 0.000; r = −0.331, p = 0.005; r = −0.330, p = 0.005; and r = −0.324, p = 0.005, respectively). The EEG analysis indicated that α-band coherence in the right centro-parietal area was negatively correlated with the total sleep duration (r = −0.283, p = 0.016). The path diagram demonstrated a direct significant effect of sleep duration irregularity on development including social communication and fixation percentage for human faces. Additionally, total sleep duration exhibited a direct effect on α cortical coherence in the right centro-parietal area. Conclusions: In this study, we found an association between sleep irregularity and the development of social communication, preference for humans, and brain coherence in toddlers. We suggest that regular sleep plays an important role in promoting the development of social communication.
出版者	Elsevier B.V.
収録物名	Sleep Medicine
巻(号)	124
ページ	531-539
刊行年月	2024-12-01
言語	英語
ハンドルURL	https://hdl.handle.net/11094/98427
PISSN	13899457
eISSN	18785506
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1016/j.sleep.2024.10.018
アクセス権	embargoed access
権利情報	© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
権利情報	The full-text file will be made open to the public on 1 December 2025 in accordance with the publisher's policy.
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCTERMS.bibliographicCitation	Sleep Medicine. 2024, 124, p. 531-539
DC.title	Regular sleep habits in toddlers are associated with social development and brain coherence
DC.creator	Iwatani, Yoshiko
	Kagitani-Shimono, Kuriko
	Ono, Azusa
	Yamamoto, Tomoka
	Mohri, Ikuko
	Yoshizaki, Arika
	Taniike, Masako
DC.publisher	Elsevier B.V.
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-12-01
DC.identifier	https://doi.org/10.1016/j.sleep.2024.10.018
DC.subject	Child
	Coherence
	Development
	Electroencephalography
	Eye-tracking
	Irregular sleep
DC.description	Iwatani Y., Kagitani-Shimono K., Ono A., et al. Regular sleep habits in toddlers are associated with social development and brain coherence. Sleep Medicine 124, 531 (2024); https://doi.org/10.1016/j.sleep.2024.10.018.
DCTERMS.abstract	Objective: Although sleep habits are associated with the development of toddlers, factors affecting social development and brain function remain unclear. We aimed to elucidate the relationship between sleep habits and social development as well as brain coherence in toddlers. Methods: We used the data set at 1.5–2 years old, in the longitudinal study until 6 years old. We evaluated sleep parameters, such as average wake-up time, bedtime, nighttime sleep duration, total sleep duration, and the standard deviation (SD) of sleep habits. We also examined the development, including the social stimuli fixation percentage using Gazefinder® and electroencephalography (EEG) coherence between brain regions. Results: Seventy-two children (37 boys and 35 girls) were included. The fixation percentage for the human face was negatively correlated with the SD of the total sleep duration, nighttime sleep duration, nap duration, and bedtime (r = −0.516, p = 0.000; r = −0.331, p = 0.005; r = −0.330, p = 0.005; and r = −0.324, p = 0.005, respectively). The EEG analysis indicated that α-band coherence in the right centro-parietal area was negatively correlated with the total sleep duration (r = −0.283, p = 0.016). The path diagram demonstrated a direct significant effect of sleep duration irregularity on development including social communication and fixation percentage for human faces. Additionally, total sleep duration exhibited a direct effect on α cortical coherence in the right centro-parietal area. Conclusions: In this study, we found an association between sleep irregularity and the development of social communication, preference for humans, and brain coherence in toddlers. We suggest that regular sleep plays an important role in promoting the development of social communication.
DC.rights	© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
DC.rights	The full-text file will be made open to the public on 1 December 2025 in accordance with the publisher's policy.
DC.format	98427
citation_title	Regular sleep habits in toddlers are associated with social development and brain coherence
citation_author	Iwatani, Yoshiko
	Kagitani-Shimono, Kuriko
	Ono, Azusa
	Yamamoto, Tomoka
	Mohri, Ikuko
	Yoshizaki, Arika
	Taniike, Masako
citation_publisher	Elsevier B.V.
citation_language	英語
citation_date	2024-12-01
citation_journal_title	Sleep Medicine
citation_volume	124
citation_firstpage	531
citation_lastpage	539
citation_doi	https://doi.org/10.1016/j.sleep.2024.10.018
citation_public_url	https://hdl.handle.net/11094/98427

Regular sleep habits in toddlers are associated with social development and brain coherence

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