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Activation of non‐primary motor areas during a complex finger movement task revealed by functional magnetic resonance imaging
Author(s) -
Moriyama Toshihiro,
Yamanouchi Naoto,
Kodama Kazuhiro,
Murakami Atsuhiro,
Okada ShinIchi,
Noda Shingo,
Komatsu Naoya,
Sato Toshio,
Kusaka Tadahumi,
Kato Kouichi
Publication year - 1998
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1046/j.1440-1819.1998.00392.x
Subject(s) - functional magnetic resonance imaging , magnetic resonance imaging , movement (music) , task (project management) , neuroscience , finger tapping , physical medicine and rehabilitation , psychology , medicine , audiology , physics , engineering , radiology , systems engineering , acoustics
We examined the brain activation induced by a complex finger movement task using functional magnetic resonance imaging (fMRI) with echo planar imaging (EPI). Imaging planes were set up for the observation of non‐primary motor areas. Among five normal males examined, four subjects naive to the task showed activations in contralateral primary and supplementary motor areas and the ipsilateral superior anterior part of the cerebellar hemisphere. Also, the bilateral premotor areas and the contralateral ventrolateral nucleus of thalamus were occasionally activated. No changes were observed in the putamen and globus pallidus. The subject accustomed to the task showed activation in the narrow areas of the contralateral primary motor and supplementary motor and premotor areas but not in the cerebellum. These results suggest that fMRI has nearly the same degree of detectability to that of positron emission tomography (PET) in regard to motor functions.