DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ghacibeh, Georges A. | ko |
dc.contributor.author | Mirpuri, Ravi | ko |
dc.contributor.author | Drago, Valeria | ko |
dc.contributor.author | Jeong, Yong | ko |
dc.contributor.author | Heilman, Kenneth M. | ko |
dc.contributor.author | Triggs, William J. | ko |
dc.date.accessioned | 2013-03-08T00:31:47Z | - |
dc.date.available | 2013-03-08T00:31:47Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2007-02 | - |
dc.identifier.citation | CLINICAL NEUROPHYSIOLOGY, v.118, no.2, pp.325 - 332 | - |
dc.identifier.issn | 1388-2457 | - |
dc.identifier.uri | http://hdl.handle.net/10203/91610 | - |
dc.description.abstract | Objective: To test for the presence and possible asymmetry of ipsilateral motor activation during unimanual and bimanual motor tasks. Methods: Twelve right-handed healthy subjects underwent motor evoked potential (MEP) measurement of one hand (target-hand) while the other hand (task-hand) performed different motor tasks. The target-hand was either at rest (first experiment) or performed a Perdue PegBoard task (second experiment). The task-hand was either at rest, performed a simultaneous pegboard task, or rotated a coin (second experiment). Results: In the first experiment, the motor task resulted in significant increase in MEP area in the target-hand, regardless which hand was the task-hand, with a greater increase when the left hand was the task-hand. In the second experiment, ipsilateral motor activation was not present for either hand, however, when the right hand was the task-hand, performance of continuous coin rotation by the right hand resulted in a significant decrease in the MEP area of the left hand. Conclusions: Hemispheric asymmetry and task-dependence of ipsilateral motor cortex activation supports the postulate that motor activity may start bilaterally with subsequent interhemispheric inhibition. Furthermore, in right-handers, the left motor cortex is either more active in ipsilateral hand movements or exerts more effective inhibitory control over the right motor cortex than vice versa. Significance: We suggest that hemispheric asymmetry in ipsilateral motor control is a factor in determining motor dominance in right-handed individuals. (c) 2006 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER IRELAND LTD | - |
dc.title | Ipsilateral motor activation during unimanual and bimanual motor tasks | - |
dc.type | Article | - |
dc.identifier.wosid | 000244135200011 | - |
dc.identifier.scopusid | 2-s2.0-33845930817 | - |
dc.type.rims | ART | - |
dc.citation.volume | 118 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 325 | - |
dc.citation.endingpage | 332 | - |
dc.citation.publicationname | CLINICAL NEUROPHYSIOLOGY | - |
dc.identifier.doi | 10.1016/j.clinph.2006.10.003 | - |
dc.contributor.localauthor | Jeong, Yong | - |
dc.contributor.nonIdAuthor | Ghacibeh, Georges A. | - |
dc.contributor.nonIdAuthor | Mirpuri, Ravi | - |
dc.contributor.nonIdAuthor | Drago, Valeria | - |
dc.contributor.nonIdAuthor | Heilman, Kenneth M. | - |
dc.contributor.nonIdAuthor | Triggs, William J. | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | ipsilateral motor cortex | - |
dc.subject.keywordAuthor | interhemispheric inhibition | - |
dc.subject.keywordAuthor | motor dominance | - |
dc.subject.keywordAuthor | transcranial magnetic stimulation | - |
dc.subject.keywordAuthor | motor evoked potentials | - |
dc.subject.keywordPlus | TRANSCRANIAL MAGNETIC STIMULATION | - |
dc.subject.keywordPlus | HEMISPHERIC-ASYMMETRY | - |
dc.subject.keywordPlus | EVOKED-POTENTIALS | - |
dc.subject.keywordPlus | CORPUS-CALLOSUM | - |
dc.subject.keywordPlus | HAND PREFERENCE | - |
dc.subject.keywordPlus | HUMAN-BRAIN | - |
dc.subject.keywordPlus | INTERHEMISPHERIC INHIBITION | - |
dc.subject.keywordPlus | DIFFERENT COMPLEXITIES | - |
dc.subject.keywordPlus | VOLUNTARY CONTRACTION | - |
dc.subject.keywordPlus | FINGER MOVEMENTS | - |
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