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https://hdl.handle.net/2440/11835
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Type: | Journal article |
Title: | Reduced interhemispheric inhibition in musicians |
Author: | Ridding, M. Brouwer, B. Nordstrom, M. |
Citation: | Experimental Brain Research, 2000; 133(2):249-253 |
Publisher: | Springer |
Issue Date: | 2000 |
ISSN: | 0014-4819 1432-1106 |
Abstract: | In vivo magnetic resonance imaging has revealed that the anterior half of the corpus callosum is larger in musicians trained intensively from an early age than in untrained subjects. The corpus callosum is crucial for the coordination of bimanual motor activity, but neurophysiological correlates of morphological differences in the corpus callosum of musicians are not known. In the present study we have used transcranial magnetic stimulation (TMS) to assess interhemispheric inhibition in six adult professional musicians who began musical training at an early age. Conditioning TMS was applied to the hand area of the motor cortex of one hemisphere, followed 4-16 ms later by a test stimulus applied to the other hemisphere. Tests were performed at rest, and with the first dorsal interosseous muscle contralateral to the conditioning hemisphere voluntarily active. Conditioning TMS in musicians was 29% less effective at reducing the size of the test MEP at rest, and 63% less effective in the active condition, compared with control subjects. We conclude that transcallosal interhemispheric inhibitory circuits activated by TMS are less effective in musicians than in controls. |
Keywords: | Fingers Motor Cortex Corpus Callosum Humans Electromyography Electric Stimulation Evoked Potentials, Motor Isometric Contraction Neural Inhibition Magnetics Music Feedback Adult Female Male Functional Laterality Conditioning, Psychological |
DOI: | 10.1007/s002210000428 |
Published version: | http://dx.doi.org/10.1007/s002210000428 |
Appears in Collections: | Aurora harvest 7 Physiology publications |
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