Activation of non-primary motor areas during a complex finger movement task revealed by functional magnetic resonance imaging
| Autor: | Shingo Noda, Kouichi Kato, Tadahumi Kusaka, Toshihiro Moriyama, Shin-ichi Okada, Naoto Yamanouchi, Kazuhiro Kodama, Toshio Sato, Naoya Komatsu, Atsuhiro Murakami |
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| Rok vydání: | 1998 |
| Předmět: |
Adult
Male Thalamus Motor Activity behavioral disciplines and activities Sensitivity and Specificity Fingers Cerebellar hemisphere Cerebellum medicine Humans Supplementary motor area medicine.diagnostic_test General Neuroscience Putamen Motor Cortex Body movement General Medicine Anatomy Magnetic Resonance Imaging Psychiatry and Mental health Globus pallidus medicine.anatomical_structure nervous system Neurology Neurology (clinical) Psychology Functional magnetic resonance imaging Neuroscience psychological phenomena and processes Motor cortex |
| Zdroj: | Psychiatry and clinical neurosciences. 52(3) |
| ISSN: | 1323-1316 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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