Surround inhibition can instantly be modulated by changing the attentional focus

Abstract To further investigate the mechanism of surround inhibition (SI) and to determine whether adopting different attentional strategies might have an impact on the modulation of SI, the effects of adopting an external (EF) or internal focus of attention (IF) on SI and motor performance were inv...

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Autores principales:	Yves-Alain Kuhn, Martin Keller, Benedikt Lauber, Wolfgang Taube
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b7609e99ddc947649071eb8e9c1f0fe0
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spelling	oai:doaj.org-article:b7609e99ddc947649071eb8e9c1f0fe02021-12-02T15:08:14ZSurround inhibition can instantly be modulated by changing the attentional focus10.1038/s41598-017-19077-02045-2322https://doaj.org/article/b7609e99ddc947649071eb8e9c1f0fe02018-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-19077-0https://doaj.org/toc/2045-2322Abstract To further investigate the mechanism of surround inhibition (SI) and to determine whether adopting different attentional strategies might have an impact on the modulation of SI, the effects of adopting an external (EF) or internal focus of attention (IF) on SI and motor performance were investigated. While performing an index flexion with either an EF or IF, transcranial magnetic stimulation was applied at various time points in 14 healthy subjects. When adopting an EF compared to an IF, the results show an improved motor performance (+14.7% in MVC) and a reduced bEMG in the adjacent APB (−22.3%) during maximal index flexion. This was accompanied by an increased SI in the APB with an EF (+26.4%). Additionally, the decrease in bEMG correlated with the magnitude of SI in APB. The current results demonstrate an efficient way to modulate SI by changing the attentional focus in healthy subjects and might, at least in part, explain the better motor performance being associated with an EF. The present findings help to better understand the positive mechanisms of an EF on SI in the healthy motor system and may also points towards a treatment strategy in pathologies with disturbed SI such as focal hand dystonia.Yves-Alain KuhnMartin KellerBenedikt LauberWolfgang TaubeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yves-Alain Kuhn Martin Keller Benedikt Lauber Wolfgang Taube Surround inhibition can instantly be modulated by changing the attentional focus
description	Abstract To further investigate the mechanism of surround inhibition (SI) and to determine whether adopting different attentional strategies might have an impact on the modulation of SI, the effects of adopting an external (EF) or internal focus of attention (IF) on SI and motor performance were investigated. While performing an index flexion with either an EF or IF, transcranial magnetic stimulation was applied at various time points in 14 healthy subjects. When adopting an EF compared to an IF, the results show an improved motor performance (+14.7% in MVC) and a reduced bEMG in the adjacent APB (−22.3%) during maximal index flexion. This was accompanied by an increased SI in the APB with an EF (+26.4%). Additionally, the decrease in bEMG correlated with the magnitude of SI in APB. The current results demonstrate an efficient way to modulate SI by changing the attentional focus in healthy subjects and might, at least in part, explain the better motor performance being associated with an EF. The present findings help to better understand the positive mechanisms of an EF on SI in the healthy motor system and may also points towards a treatment strategy in pathologies with disturbed SI such as focal hand dystonia.
format	article
author	Yves-Alain Kuhn Martin Keller Benedikt Lauber Wolfgang Taube
author_facet	Yves-Alain Kuhn Martin Keller Benedikt Lauber Wolfgang Taube
author_sort	Yves-Alain Kuhn
title	Surround inhibition can instantly be modulated by changing the attentional focus
title_short	Surround inhibition can instantly be modulated by changing the attentional focus
title_full	Surround inhibition can instantly be modulated by changing the attentional focus
title_fullStr	Surround inhibition can instantly be modulated by changing the attentional focus
title_full_unstemmed	Surround inhibition can instantly be modulated by changing the attentional focus
title_sort	surround inhibition can instantly be modulated by changing the attentional focus
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/b7609e99ddc947649071eb8e9c1f0fe0
work_keys_str_mv	AT yvesalainkuhn surroundinhibitioncaninstantlybemodulatedbychangingtheattentionalfocus AT martinkeller surroundinhibitioncaninstantlybemodulatedbychangingtheattentionalfocus AT benediktlauber surroundinhibitioncaninstantlybemodulatedbychangingtheattentionalfocus AT wolfgangtaube surroundinhibitioncaninstantlybemodulatedbychangingtheattentionalfocus
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Surround inhibition can instantly be modulated by changing the attentional focus

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