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Intrahemispheric dysfunction in primary motor cortex without corpus callosum: a transcranial magnetic stimulation study |
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| Authors: | Shirley Fecteau Maryse Lassonde Hugo Théoret |
| Affiliation: | (1) Centre de Recherche en Neuropsychologie et Cognition, D?partement de Psychologie, Universit? de Montr?al and H?pital Sainte-Justine, Montreal, Canada;(2) Center for Non-Invasive Brain Stimulation, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, USA;(3) Center for Non-Invasive Brain Stimulation, Harvard MedicalSchool, Beth Israel Deaconess Medical Center, 300 Brookline, 02215 Boston, MA, USA;(4) D?partement de Psychologie, Universit? de Montr?al, CP 6128, Succ. Centre-Ville, Montr?al, QC, H3C 3J7, Canada |
| Abstract: | BackgroundThe two human cerebral hemispheres are continuously interacting, through excitatory and inhibitory influences and one critical structure subserving this interhemispheric balance is the corpus callosum. Interhemispheric neurophysiological abnormalities and intrahemispheric behavioral impairments have been reported in individuals lacking the corpus callosum. The aim of this study was to examine intrahemispheric neurophysiological function in primary motor cortex devoid of callosal projections. |
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