The difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study

Abstract The human brain is lateralized to dominant or non-dominant hemispheres, and controlled through large-scale neural networks between correlated cortical regions. Recently, many neuroimaging studies have been conducted to examine the origin of brain lateralization, but this is still unclear. I...

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Autores principales:	Seung Hyun Lee, Sang Hyeon Jin, Jinung An
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0e81128345934631979c1ab1c8ad23b8
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spelling	oai:doaj.org-article:0e81128345934631979c1ab1c8ad23b82021-12-02T15:09:13ZThe difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study10.1038/s41598-019-50644-92045-2322https://doaj.org/article/0e81128345934631979c1ab1c8ad23b82019-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-50644-9https://doaj.org/toc/2045-2322Abstract The human brain is lateralized to dominant or non-dominant hemispheres, and controlled through large-scale neural networks between correlated cortical regions. Recently, many neuroimaging studies have been conducted to examine the origin of brain lateralization, but this is still unclear. In this study, we examined the differences in brain activation in subjects according to dominant and non-dominant hands while using chopsticks. Fifteen healthy right-handed subjects were recruited to perform tasks which included transferring almonds using stainless steel chopsticks. Functional near-infrared spectroscopy (fNIRS) was used to acquire the hemodynamic response over the primary sensory-motor cortex (SM1), premotor area (PMC), supplementary motor area (SMA), and frontal cortex. We measured the concentrations of oxy-hemoglobin and deoxy-hemoglobin induced during the use of chopsticks with dominant and non-dominant hands. While using the dominant hand, brain activation was observed on the contralateral side. While using the non-dominant hand, brain activation was observed on the ipsilateral side as well as the contralateral side. These results demonstrate dominance and functional asymmetry of the cerebral hemisphere.Seung Hyun LeeSang Hyeon JinJinung AnNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Seung Hyun Lee Sang Hyeon Jin Jinung An The difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study
description	Abstract The human brain is lateralized to dominant or non-dominant hemispheres, and controlled through large-scale neural networks between correlated cortical regions. Recently, many neuroimaging studies have been conducted to examine the origin of brain lateralization, but this is still unclear. In this study, we examined the differences in brain activation in subjects according to dominant and non-dominant hands while using chopsticks. Fifteen healthy right-handed subjects were recruited to perform tasks which included transferring almonds using stainless steel chopsticks. Functional near-infrared spectroscopy (fNIRS) was used to acquire the hemodynamic response over the primary sensory-motor cortex (SM1), premotor area (PMC), supplementary motor area (SMA), and frontal cortex. We measured the concentrations of oxy-hemoglobin and deoxy-hemoglobin induced during the use of chopsticks with dominant and non-dominant hands. While using the dominant hand, brain activation was observed on the contralateral side. While using the non-dominant hand, brain activation was observed on the ipsilateral side as well as the contralateral side. These results demonstrate dominance and functional asymmetry of the cerebral hemisphere.
format	article
author	Seung Hyun Lee Sang Hyeon Jin Jinung An
author_facet	Seung Hyun Lee Sang Hyeon Jin Jinung An
author_sort	Seung Hyun Lee
title	The difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study
title_short	The difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study
title_full	The difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study
title_fullStr	The difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study
title_full_unstemmed	The difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study
title_sort	difference in cortical activation pattern for complex motor skills: a functional near- infrared spectroscopy study
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/0e81128345934631979c1ab1c8ad23b8
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The difference in cortical activation pattern for complex motor skills: A functional near- infrared spectroscopy study

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