Shorter sleep duration and better sleep quality are associated with greater tissue density in the brain

Takeuchi, H, Taki, Y, Nouchi, R, Yokoyama, R, Kotozaki, Y, Nakagawa, S, Sekiguchi, A, Iizuka, K, Yamamoto, Y, Hanawa, S, Araki, T, Miyauchi, CM, Shinada, T, Sakaki, K, Nozawa, T, Ikeda, S, Yokota, S, Magistro, D ORCID: https://orcid.org/0000-0002-2554-3701, Sassa, Y and Kawashima, R, 2018. Shorter sleep duration and better sleep quality are associated with greater tissue density in the brain. Scientific Reports, 8: 5833. ISSN 2045-2322

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Abstract

Poor sleep quality is associated with unfavorable psychological measurements, whereas sleep duration has complex relationships with such measurements. The aim of this study was to identify the associations between microstructural properties of the brain and sleep duration/sleep quality in a young adult. The associations between mean diffusivity (MD), a measure of diffusion tensor imaging (DTI), and sleep duration/sleep quality were investigated in a study cohort of 1201 normal young adults. Positive correlations between sleep duration and MD of widespread areas of the brain, including the prefrontal cortex (PFC) and the dopaminergic systems, were identified. Negative correlations between sleep quality and MD of the widespread areas of the brain, including the PFC and the right hippocampus, were also detected. Lower MD has been previously associated with more neural tissues in the brain. Further, shorter sleep duration was associated with greater persistence and executive functioning (lower Stroop interference), whereas good sleep quality was associated with states and traits relevant to positive affects. These results suggest that bad sleep quality and longer sleep duration were associated with aberrant neurocognitive measurements in the brain in healthy young adults.

Item Type:	Journal article
Publication Title:	Scientific Reports
Creators:	Takeuchi, H., Taki, Y., Nouchi, R., Yokoyama, R., Kotozaki, Y., Nakagawa, S., Sekiguchi, A., Iizuka, K., Yamamoto, Y., Hanawa, S., Araki, T., Miyauchi, C.M., Shinada, T., Sakaki, K., Nozawa, T., Ikeda, S., Yokota, S., Magistro, D., Sassa, Y. and Kawashima, R.
Publisher:	Nature Publishing Group
Date:	2018
Volume:	8
ISSN:	2045-2322
Identifiers:	Number Type 10.1038/s41598-018-24226-0 DOI 24 Publisher Item Identifier
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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
Divisions:	Schools > School of Science and Technology
Record created by:	Linda Sullivan
Date Added:	08 May 2018 15:14
Last Modified:	08 May 2018 15:14
URI:	https://irep.ntu.ac.uk/id/eprint/33464

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