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Relative performance of the two hands in simple and choice reaction time tasks

There is evidence that the left hemisphere is more competent for motor control than the right hemisphere. This study investigated whether this hemispheric asymmetry is expressed in the latency/duration of sequential responses performed by the left and/or right hands. Thirty-two right-handed young ad...

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Autores principales: Nisiyama, M., Ribeiro-do-Valle, L.E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Associação Brasileira de Divulgação Científica 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3932976/
https://www.ncbi.nlm.nih.gov/pubmed/24345871
http://dx.doi.org/10.1590/1414-431X20132932
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author Nisiyama, M.
Ribeiro-do-Valle, L.E.
author_facet Nisiyama, M.
Ribeiro-do-Valle, L.E.
author_sort Nisiyama, M.
collection PubMed
description There is evidence that the left hemisphere is more competent for motor control than the right hemisphere. This study investigated whether this hemispheric asymmetry is expressed in the latency/duration of sequential responses performed by the left and/or right hands. Thirty-two right-handed young adults (16 males, 16 females; 18-25 years old) were tested in a simple or choice reaction time task. They responded to a left and/or right visual target by moving their left and/or right middle fingers between two keys on each side of the midline. Right hand reaction time did not differ from left hand reaction time. Submovement times were longer for the right hand than the left hand when the response was bilateral. Pause times were shorter for the right hand than the left hand, both when the responses were unilateral or bilateral. Reaction time results indicate that the putatively more efficient response preparation by the left hemisphere motor mechanisms is not expressed behaviorally. Submovement time and pause time results indicate that the putatively more efficient response execution by the left hemisphere motor mechanisms is expressed behaviorally. In the case of the submovements, the less efficient motor control of the left hand would be compensated by a more intense attention to this hand.
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spelling pubmed-39329762014-03-06 Relative performance of the two hands in simple and choice reaction time tasks Nisiyama, M. Ribeiro-do-Valle, L.E. Braz J Med Biol Res Biomedical Sciences There is evidence that the left hemisphere is more competent for motor control than the right hemisphere. This study investigated whether this hemispheric asymmetry is expressed in the latency/duration of sequential responses performed by the left and/or right hands. Thirty-two right-handed young adults (16 males, 16 females; 18-25 years old) were tested in a simple or choice reaction time task. They responded to a left and/or right visual target by moving their left and/or right middle fingers between two keys on each side of the midline. Right hand reaction time did not differ from left hand reaction time. Submovement times were longer for the right hand than the left hand when the response was bilateral. Pause times were shorter for the right hand than the left hand, both when the responses were unilateral or bilateral. Reaction time results indicate that the putatively more efficient response preparation by the left hemisphere motor mechanisms is not expressed behaviorally. Submovement time and pause time results indicate that the putatively more efficient response execution by the left hemisphere motor mechanisms is expressed behaviorally. In the case of the submovements, the less efficient motor control of the left hand would be compensated by a more intense attention to this hand. Associação Brasileira de Divulgação Científica 2013-12-12 /pmc/articles/PMC3932976/ /pubmed/24345871 http://dx.doi.org/10.1590/1414-431X20132932 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Biomedical Sciences
Nisiyama, M.
Ribeiro-do-Valle, L.E.
Relative performance of the two hands in simple and choice reaction time tasks
title Relative performance of the two hands in simple and choice reaction time tasks
title_full Relative performance of the two hands in simple and choice reaction time tasks
title_fullStr Relative performance of the two hands in simple and choice reaction time tasks
title_full_unstemmed Relative performance of the two hands in simple and choice reaction time tasks
title_short Relative performance of the two hands in simple and choice reaction time tasks
title_sort relative performance of the two hands in simple and choice reaction time tasks
topic Biomedical Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3932976/
https://www.ncbi.nlm.nih.gov/pubmed/24345871
http://dx.doi.org/10.1590/1414-431X20132932
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