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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Divulgação Científica
2014-01-01
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| Series: | Brazilian Journal of Medical and Biological Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000100080&lng=en&tlng=en |
| _version_ | 1828304239519072256 |
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| author | M. Nisiyama L.E. Ribeiro-do-Valle |
| author_facet | M. Nisiyama L.E. Ribeiro-do-Valle |
| author_sort | M. Nisiyama |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-13T14:08:11Z |
| format | Article |
| id | doaj.art-e7177c7541724dd195828b1dbb04e65e |
| institution | Directory Open Access Journal |
| issn | 1414-431X |
| language | English |
| last_indexed | 2024-04-13T14:08:11Z |
| publishDate | 2014-01-01 |
| publisher | Associação Brasileira de Divulgação Científica |
| record_format | Article |
| series | Brazilian Journal of Medical and Biological Research |
| spelling | doaj.art-e7177c7541724dd195828b1dbb04e65e2022-12-22T02:43:52ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research1414-431X2014-01-01471808910.1590/1414-431X20132932S0100-879X2014000100080Relative performance of the two hands in simple and choice reaction time tasksM. NisiyamaL.E. Ribeiro-do-ValleThere 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000100080&lng=en&tlng=enMotor lateral asymmetryReaction timeMovement timeResponse complexityUnilateral responseBilateral response |
| spellingShingle | M. Nisiyama L.E. Ribeiro-do-Valle Relative performance of the two hands in simple and choice reaction time tasks Brazilian Journal of Medical and Biological Research Motor lateral asymmetry Reaction time Movement time Response complexity Unilateral response Bilateral response |
| 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 | Motor lateral asymmetry Reaction time Movement time Response complexity Unilateral response Bilateral response |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000100080&lng=en&tlng=en |
| work_keys_str_mv | AT mnisiyama relativeperformanceofthetwohandsinsimpleandchoicereactiontimetasks AT leribeirodovalle relativeperformanceofthetwohandsinsimpleandchoicereactiontimetasks |