Functional magnetic resonance imaging of whole brain related to motor preparation and execution

To investigate the roles the different functional activation areas in whole human brain related to movement play during motor preparation (CUE) and execution (GO). Event-related functional MRI technique was used on 12 right-handed healthy subjects to record the brain activation in a manner of delaye...

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Bibliographic Details
Published inZhong hua yi xue za zhi Vol. 87; no. 14; p. 971
Main Authors Wang, Mei-hao, Zhu, Yi-hong, Li, Jian-ce, Weng, Xu-chu
Format Journal Article
LanguageChinese
Published China 10.04.2007
Subjects
Adult
Brain - physiology
Brain Mapping
Cerebellar Cortex - physiology
Female
Functional Laterality
Humans
Magnetic Resonance Imaging
Male
Motor Cortex - physiology
Psychomotor Performance - physiology
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ISSN0376-2491

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Summary:To investigate the roles the different functional activation areas in whole human brain related to movement play during motor preparation (CUE) and execution (GO). Event-related functional MRI technique was used on 12 right-handed healthy subjects to record the brain activation in a manner of delayed sequential finger movement. Activation maps and time-signal intensity curves were generated. Bilateral anterior parts of supplementary motor area (Pre-SMA), bilateral posterior parietal cortex (PPC), and bilateral anterior premotor cortex (PMC) were strongly activated during the preparation period, while bilateral SMA proper, and contralateral primary motor cortex (M1) were strongly activated during the execution period, Cerebellar cortex was activated during both periods. The time-signal intensity curves based on single voxel indicated that above-mentioned brain areas were activated during both periods to different degrees; however, the characteristics of distribution in every area were different. The brain area
ISSN:0376-2491