COMPARISON OF IPSILATERAL ACTIVATION BETWEEN RIGHT AND LEFT-HANDERS -A FUNCTIONAL MR-IMAGING STUDY

Citation
Ln. Singh et al., COMPARISON OF IPSILATERAL ACTIVATION BETWEEN RIGHT AND LEFT-HANDERS -A FUNCTIONAL MR-IMAGING STUDY, NeuroReport, 9(8), 1998, pp. 1861-1866
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Neurosciences
Journal title
ISSN journal
0959-4965
Volume
9
Issue
8
Year of publication
1998
Pages
1861 - 1866
Database
ISI
SICI code
0959-4965(1998)9:8<1861:COIABR>2.0.ZU;2-#
Abstract
WE used fMRI to compare the ipsilateral activation in the sensorimotor region (SMR) during dominant and non-dominant hand motor tasks betwee n right and left handers. In right handers, the ipsilateral activation was significantly greater during non-dominant (left) hand task than d ominant (right) hand task, while in left handers, it showed no signifi cant 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 h emispheric dominance. The skill of the hand and complexity of tasks ma y be related to the predominant activation of the premotor area. (C) 1 998 Rapid Science Ltd.