Comparison of ipsilateral activation between right and left handers: a functional MR imaging study
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...
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| Veröffentlicht in: | Neuroreport 1998-06, Vol.9 (8), p.1861-1866 |
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| creator | Singh, Laxmi N Higano, Shuichi Takahashi, Shoki Kurihara, Noriko Furuta, Susumu Tamura, Hajime Shimanuki, Yoshihisa Mugikura, Shunji Fujii, Toshikatsu Yamadori, Atsushi Sakamoto, Maya Yamada, Shogo |
| description | 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. |
| doi_str_mv | 10.1097/00001756-199806010-00036 |
| format | Article |
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| subjects | Adult Analysis of Variance Anatomical correlates of behavior Behavioral psychophysiology Biological and medical sciences Female Functional Laterality - physiology Fundamental and applied biological sciences. Psychology Humans Magnetic Resonance Imaging - methods Male Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Psychomotor Performance - physiology Somatosensory Cortex - pathology Somatosensory Cortex - physiology |
| title | Comparison of ipsilateral activation between right and left handers: a functional MR imaging study |
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