Modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity

Abstract Imagery plays an important role in our life. Motor imagery is the mental simulation of a motor act without overt motor output. Previous studies have documented the effect of motor imagery practice. However, its translational potential for patients as well as for athletes, musicians and othe...

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Autores principales:	Catharina Zich, Siobhán Harty, Cornelia Kranczioch, Karen L. Mansfield, Francesco Sella, Stefan Debener, Roi Cohen Kadosh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d25a8fdc6e234e37a86eda866d66597e
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spelling	oai:doaj.org-article:d25a8fdc6e234e37a86eda866d66597e2021-12-02T15:05:50ZModulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity10.1038/s41598-017-13795-12045-2322https://doaj.org/article/d25a8fdc6e234e37a86eda866d66597e2017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-13795-1https://doaj.org/toc/2045-2322Abstract Imagery plays an important role in our life. Motor imagery is the mental simulation of a motor act without overt motor output. Previous studies have documented the effect of motor imagery practice. However, its translational potential for patients as well as for athletes, musicians and other groups, depends largely on the transfer from mental practice to overt physical performance. We used bilateral transcranial direct current stimulation (tDCS) over sensorimotor areas to modulate neural lateralization patterns induced by unilateral mental motor imagery and the performance of a physical motor task. Twenty-six healthy older adults participated (mean age = 67.1 years) in a double-blind cross-over sham-controlled study. We found stimulation-related changes at the neural and behavioural level, which were polarity-dependent. Specifically, for the hand contralateral to the anode, electroencephalographic activity induced by motor imagery was more lateralized and motor performance improved. In contrast, for the hand contralateral to the cathode, hemispheric lateralization was reduced. The stimulation-related increase and decrease in neural lateralization were negatively related. Further, the degree of stimulation-related change in neural lateralization correlated with the stimulation-related change on behavioural level. These convergent neurophysiological and behavioural effects underline the potential of tDCS to improve mental and physical motor performance.Catharina ZichSiobhán HartyCornelia KrancziochKaren L. MansfieldFrancesco SellaStefan DebenerRoi Cohen KadoshNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Catharina Zich Siobhán Harty Cornelia Kranczioch Karen L. Mansfield Francesco Sella Stefan Debener Roi Cohen Kadosh Modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity
description	Abstract Imagery plays an important role in our life. Motor imagery is the mental simulation of a motor act without overt motor output. Previous studies have documented the effect of motor imagery practice. However, its translational potential for patients as well as for athletes, musicians and other groups, depends largely on the transfer from mental practice to overt physical performance. We used bilateral transcranial direct current stimulation (tDCS) over sensorimotor areas to modulate neural lateralization patterns induced by unilateral mental motor imagery and the performance of a physical motor task. Twenty-six healthy older adults participated (mean age = 67.1 years) in a double-blind cross-over sham-controlled study. We found stimulation-related changes at the neural and behavioural level, which were polarity-dependent. Specifically, for the hand contralateral to the anode, electroencephalographic activity induced by motor imagery was more lateralized and motor performance improved. In contrast, for the hand contralateral to the cathode, hemispheric lateralization was reduced. The stimulation-related increase and decrease in neural lateralization were negatively related. Further, the degree of stimulation-related change in neural lateralization correlated with the stimulation-related change on behavioural level. These convergent neurophysiological and behavioural effects underline the potential of tDCS to improve mental and physical motor performance.
format	article
author	Catharina Zich Siobhán Harty Cornelia Kranczioch Karen L. Mansfield Francesco Sella Stefan Debener Roi Cohen Kadosh
author_facet	Catharina Zich Siobhán Harty Cornelia Kranczioch Karen L. Mansfield Francesco Sella Stefan Debener Roi Cohen Kadosh
author_sort	Catharina Zich
title	Modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity
title_short	Modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity
title_full	Modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity
title_fullStr	Modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity
title_full_unstemmed	Modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity
title_sort	modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d25a8fdc6e234e37a86eda866d66597e
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Modulating hemispheric lateralization by brain stimulation yields gain in mental and physical activity

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