Comparison of ipsilateral activation between right and left handers
| Autor: | Atsushi Yamadori, Shuichi Higano, Shogo Yamada, Maya Sakamoto, Noriko Kurihara, Laxmi N. Singh, Shunji Mugikura, Syouki Takahashi, Hajime Tamura, Yoshihisa Shimanuki, Susumu Furuta, Toshikatsu Fujii |
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| Rok vydání: | 1998 |
| Předmět: |
Adult
Male Left handed Analysis of Variance medicine.medical_specialty General Neuroscience Significant difference Precentral gyrus Imaging study Somatosensory Cortex Audiology Somatosensory system Magnetic Resonance Imaging behavioral disciplines and activities Functional Laterality Laterality Cerebral hemisphere medicine Humans Functional mr Female Psychology Neuroscience Psychomotor Performance psychological phenomena and processes |
| Zdroj: | NeuroReport. 9:1861-1866 |
| ISSN: | 0959-4965 |
| Popis: | We used fMRI to compare the ipsilateral activation in the sensorimotor region (SMR) during dominant and non-dominant hand motor tasks between right and left handers. In right handers, the ipsilateral activation was significantly greater during non-dominant (left) hand task than dominant (right) hand task, while in left handers, it showed no significant difference. The ipsilateral activation was most pronounced in the precentral subregion (presumably corresponding to the premotor area) during either hand task in both groups. We conclude that the different patterns of ipsilateral activation might be mainly explained by the hemispheric dominance. The skill of the hand and complexity of tasks may be related to the predominant activation of the premotor area. |
| Databáze: | OpenAIRE |
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