EEG beta-modulations reflect age-specific motor resource allocation during dual-task walking

Abstract The parallel execution of two motor tasks can lead to performance decrements in either one or both of the tasks. Age-related declines can further magnify the underlying competition for cognitive resources. However, little is known about the neural dynamics underlying motor resource allocati...

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Autores principales:	Janna Protzak, Klaus Gramann
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cb65827645544ff89444d27ece4ac931
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spelling	oai:doaj.org-article:cb65827645544ff89444d27ece4ac9312021-12-02T15:08:39ZEEG beta-modulations reflect age-specific motor resource allocation during dual-task walking10.1038/s41598-021-94874-22045-2322https://doaj.org/article/cb65827645544ff89444d27ece4ac9312021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94874-2https://doaj.org/toc/2045-2322Abstract The parallel execution of two motor tasks can lead to performance decrements in either one or both of the tasks. Age-related declines can further magnify the underlying competition for cognitive resources. However, little is known about the neural dynamics underlying motor resource allocation during dual-task walking. To better understand motor resource conflicts, this study investigated sensorimotor brain rhythms in younger and older adults using a dual-task protocol. Time-frequency data from two independent component motor clusters were extracted from electroencephalography data during sitting and walking with an additional task requiring manual responses. Button press-related desynchronization in the alpha and beta frequency range were analyzed for the impact of age (< 35 years, ≥ 70 years) and motor task (sitting, walking). Button press-related desynchronization in the beta band was more pronounced for older participants and both age groups demonstrated less pronounced desynchronizations in both frequency bands during walking compared to sitting. Older participants revealed less power modulations between sitting and walking, and less pronounced changes in beta and alpha suppression were associated with greater slowing in walking speed. Our results indicate age-specific allocations strategies during dual-task walking as well as interdependencies of concurrently performed motor tasks reflected in modulations of sensorimotor rhythms.Janna ProtzakKlaus GramannNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Janna Protzak Klaus Gramann EEG beta-modulations reflect age-specific motor resource allocation during dual-task walking
description	Abstract The parallel execution of two motor tasks can lead to performance decrements in either one or both of the tasks. Age-related declines can further magnify the underlying competition for cognitive resources. However, little is known about the neural dynamics underlying motor resource allocation during dual-task walking. To better understand motor resource conflicts, this study investigated sensorimotor brain rhythms in younger and older adults using a dual-task protocol. Time-frequency data from two independent component motor clusters were extracted from electroencephalography data during sitting and walking with an additional task requiring manual responses. Button press-related desynchronization in the alpha and beta frequency range were analyzed for the impact of age (< 35 years, ≥ 70 years) and motor task (sitting, walking). Button press-related desynchronization in the beta band was more pronounced for older participants and both age groups demonstrated less pronounced desynchronizations in both frequency bands during walking compared to sitting. Older participants revealed less power modulations between sitting and walking, and less pronounced changes in beta and alpha suppression were associated with greater slowing in walking speed. Our results indicate age-specific allocations strategies during dual-task walking as well as interdependencies of concurrently performed motor tasks reflected in modulations of sensorimotor rhythms.
format	article
author	Janna Protzak Klaus Gramann
author_facet	Janna Protzak Klaus Gramann
author_sort	Janna Protzak
title	EEG beta-modulations reflect age-specific motor resource allocation during dual-task walking
title_short	EEG beta-modulations reflect age-specific motor resource allocation during dual-task walking
title_full	EEG beta-modulations reflect age-specific motor resource allocation during dual-task walking
title_fullStr	EEG beta-modulations reflect age-specific motor resource allocation during dual-task walking
title_full_unstemmed	EEG beta-modulations reflect age-specific motor resource allocation during dual-task walking
title_sort	eeg beta-modulations reflect age-specific motor resource allocation during dual-task walking
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/cb65827645544ff89444d27ece4ac931
work_keys_str_mv	AT jannaprotzak eegbetamodulationsreflectagespecificmotorresourceallocationduringdualtaskwalking AT klausgramann eegbetamodulationsreflectagespecificmotorresourceallocationduringdualtaskwalking
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EEG beta-modulations reflect age-specific motor resource allocation during dual-task walking

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