Intratask and intertask asymmetry analysis of motor function
Intratask and intertask asymmetry analysis of motor function
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DOI：
10.1097/01.wnr.0000230509.78467.df
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发表时间：
2006-07
期刊：
影响因子：
1.7
通讯作者：
Lirong Yan;Daxing Wu;Xiang Wang;Zongtan Zhou;Yadong Liu;S. Yao;D. Hu
中科院分区：
文献类型：
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作者：
Lirong Yan;Daxing Wu;Xiang Wang;Zongtan Zhou;Yadong Liu;S. Yao;D. Hu
来自功能性磁共振成像研究的充分证据表明，在手指对拇指（任务内）的任务中，运动皮层和小脑的功能性大脑不对称性，但左手和右手执行的手指对拇指（任务间）任务的不对称性却鲜为人知。在这里，我们发现，任务内引起的不对称反应，在运动皮层和小脑，有趣的是，在核外和小脑。任务间比较左右手激活的图像之间的不对称性的左右手，然而，发现不同的侧化反应在颞叶皮层，核，海马旁回，扣带回和显著的基底神经节。这些结果表明，运动组织中功能不对称的多个方面反映在特定的大脑区域。
Ample evidence from functional magnetic resonance imaging studies has demonstrated functional brain asymmetries in the motor cortex and cerebellum within the task of finger-to-thumb (intratask), but the asymmetries across left and right hand-performed tasks of finger-to-thumb (intertask) are little known. Here, we found that intratask evoked asymmetry responses in the motor cortex and cerebellum, and interestingly in the Extra-Nuclear and insula. Intertask comparisons between left and right hand-activated images and between the asymmetries of intratasks of left and right hand, however, revealed distinct lateralization responses in the temporal cortex, extranuclear, parahippocampal gyrus, cingulate gyrus and prominently in basal ganglia. These results suggest that multiple aspects of functional asymmetries in motor organization are reflected in specific brain regions.