{"_buckets": {"deposit": "52c4db0a-d7da-4aef-9380-044594667168"}, "_deposit": {"created_by": 3, "id": "5974", "owners": [3], "pid": {"revision_id": 0, "type": "depid", "value": "5974"}, "status": "published"}, "_oai": {"id": "oai:air.repo.nii.ac.jp:00005974", "sets": ["940"]}, "author_link": ["17915", "17905", "17913", "17922", "17904", "17902", "17920", "17908", "17907", "17899", "17918", "17898", "17921", "17919", "17914", "17903", "17912", "17906", "17900", "17911", "17910", "17916", "17909", "17917", "17923", "17901"], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2021", "bibliographicIssueDateType": "Issued"}, "bibliographicVolumeNumber": "11", "bibliographic_titles": [{"bibliographic_title": "SCIENTIFIC REPORTS"}]}]}, "item_10001_description_5": {"attribute_name": "内容記述（抄録）", "attribute_value_mlt": [{"subitem_description": "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.", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Nature Research"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type": "isIdenticalTo", "subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1038/s41598-021-95495-5", "subitem_relation_type_select": "DOI"}}]}, "item_10001_relation_25": {"attribute_name": "関連リンク", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "http://dx.doi.org/10.1038/s41598-021-95495-5"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://dx.doi.org/10.1038/s41598-021-95495-5", "subitem_relation_type_select": "DOI"}}]}, "item_10001_rights_15": {"attribute_name": "著作権等", "attribute_value_mlt": [{"subitem_rights": "Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. © The Author(s) 2021"}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "2045-2322", "subitem_source_identifier_type": "ISSN"}]}, "item_10001_version_type_20": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Ando, Akiko"}], "nameIdentifiers": [{"nameIdentifier": "17898", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ohta, Hidenobu"}], "nameIdentifiers": [{"nameIdentifier": "17899", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yoshimura, Yuko"}], "nameIdentifiers": [{"nameIdentifier": "17900", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nakagawa, Machiko"}], "nameIdentifiers": [{"nameIdentifier": "17901", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Asaka, Yoko"}], "nameIdentifiers": [{"nameIdentifier": "17902", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nakazawa, Takayo"}], "nameIdentifiers": [{"nameIdentifier": "17903", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Mitani, Yusuke"}], "nameIdentifiers": [{"nameIdentifier": "17904", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Oishi, Yoshihisa"}], "nameIdentifiers": [{"nameIdentifier": "17905", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Mizushima, Masato"}], "nameIdentifiers": [{"nameIdentifier": "17906", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Adachi, Hiroyuki"}], "nameIdentifiers": [{"nameIdentifier": "17907", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kaneshi, Yosuke"}], "nameIdentifiers": [{"nameIdentifier": "17908", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Morioka, Keita"}], "nameIdentifiers": [{"nameIdentifier": "17909", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shimabukuro, Rinshu"}], "nameIdentifiers": [{"nameIdentifier": "17910", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Hirata, Michio"}], "nameIdentifiers": [{"nameIdentifier": "17911", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ikeda, Takashi"}], "nameIdentifiers": [{"nameIdentifier": "17912", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Fukutomi, Rika"}], "nameIdentifiers": [{"nameIdentifier": "17913", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kobayashi, Kyoko"}], "nameIdentifiers": [{"nameIdentifier": "17914", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ozawa, Miwa"}], "nameIdentifiers": 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