Association between free-living sleep and memory and attention in healthy adolescents

Abstract In laboratory studies, imposed sleep restriction consistently reduces cognitive performance. However, the association between objectively measured, free-living sleep and cognitive function has not been studied in older adolescents. To address this gap, we measured one week of sleep with a w...

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Autores principales:	Runa Stefansdottir, Hilde Gundersen, Vaka Rognvaldsdottir, Alexander S. Lundervold, Sunna Gestsdottir, Sigridur L. Gudmundsdottir, Kong Y. Chen, Robert J. Brychta, Erlingur Johannsson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3ea507a25ae74fc7b1a23eaa9f34a725
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spelling	oai:doaj.org-article:3ea507a25ae74fc7b1a23eaa9f34a7252021-12-02T18:37:07ZAssociation between free-living sleep and memory and attention in healthy adolescents10.1038/s41598-020-73774-x2045-2322https://doaj.org/article/3ea507a25ae74fc7b1a23eaa9f34a7252020-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-73774-xhttps://doaj.org/toc/2045-2322Abstract In laboratory studies, imposed sleep restriction consistently reduces cognitive performance. However, the association between objectively measured, free-living sleep and cognitive function has not been studied in older adolescents. To address this gap, we measured one week of sleep with a wrist-worn GT3X+ actigraph in 160 adolescents (96 girls, 17.7 ± 0.3 years) followed by assessment of working memory with an n-back task and visual attention with a Posner cue-target task. Over the week, participants spent 7.1 ± 0.8 h/night in bed and slept 6.2 ± 0.8 h/night with 88.5 ± 4.8% efficiency and considerable intra-participant night-to-night variation, with a standard deviation in sleep duration of 1.2 ± 0.7 h. Sleep measures the night before cognitive testing were similar to weekly averages. Time in bed the night before cognitive testing was negatively associated with response times during the most challenging memory task (3-back; p = 0.005). However, sleep measures the night before did not correlate with performance on the attention task and weekly sleep parameters were not associated with either cognitive task. Our data suggests shorter acute free-living sleep may negatively impact difficult memory tasks, however the relationship between free-living sleep and cognitive task performance in healthy adolescents is less clear than that of laboratory findings, perhaps due to high night-to-night sleep variation.Runa StefansdottirHilde GundersenVaka RognvaldsdottirAlexander S. LundervoldSunna GestsdottirSigridur L. GudmundsdottirKong Y. ChenRobert J. BrychtaErlingur JohannssonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-13 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Runa Stefansdottir Hilde Gundersen Vaka Rognvaldsdottir Alexander S. Lundervold Sunna Gestsdottir Sigridur L. Gudmundsdottir Kong Y. Chen Robert J. Brychta Erlingur Johannsson Association between free-living sleep and memory and attention in healthy adolescents
description	Abstract In laboratory studies, imposed sleep restriction consistently reduces cognitive performance. However, the association between objectively measured, free-living sleep and cognitive function has not been studied in older adolescents. To address this gap, we measured one week of sleep with a wrist-worn GT3X+ actigraph in 160 adolescents (96 girls, 17.7 ± 0.3 years) followed by assessment of working memory with an n-back task and visual attention with a Posner cue-target task. Over the week, participants spent 7.1 ± 0.8 h/night in bed and slept 6.2 ± 0.8 h/night with 88.5 ± 4.8% efficiency and considerable intra-participant night-to-night variation, with a standard deviation in sleep duration of 1.2 ± 0.7 h. Sleep measures the night before cognitive testing were similar to weekly averages. Time in bed the night before cognitive testing was negatively associated with response times during the most challenging memory task (3-back; p = 0.005). However, sleep measures the night before did not correlate with performance on the attention task and weekly sleep parameters were not associated with either cognitive task. Our data suggests shorter acute free-living sleep may negatively impact difficult memory tasks, however the relationship between free-living sleep and cognitive task performance in healthy adolescents is less clear than that of laboratory findings, perhaps due to high night-to-night sleep variation.
format	article
author	Runa Stefansdottir Hilde Gundersen Vaka Rognvaldsdottir Alexander S. Lundervold Sunna Gestsdottir Sigridur L. Gudmundsdottir Kong Y. Chen Robert J. Brychta Erlingur Johannsson
author_facet	Runa Stefansdottir Hilde Gundersen Vaka Rognvaldsdottir Alexander S. Lundervold Sunna Gestsdottir Sigridur L. Gudmundsdottir Kong Y. Chen Robert J. Brychta Erlingur Johannsson
author_sort	Runa Stefansdottir
title	Association between free-living sleep and memory and attention in healthy adolescents
title_short	Association between free-living sleep and memory and attention in healthy adolescents
title_full	Association between free-living sleep and memory and attention in healthy adolescents
title_fullStr	Association between free-living sleep and memory and attention in healthy adolescents
title_full_unstemmed	Association between free-living sleep and memory and attention in healthy adolescents
title_sort	association between free-living sleep and memory and attention in healthy adolescents
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/3ea507a25ae74fc7b1a23eaa9f34a725
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Association between free-living sleep and memory and attention in healthy adolescents

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