Study of brain networks during motor execution and imagery using dynamic causal model

被引：0
|
作者：
Gao Q. [1 ,2 ]
Chen H.-F. [2 ]
机构：
[1] School of Applied Mathematics, University of Electronic Science and Technology of China
[2] Key Laboratory for NeuroInformation of Ministry of Education, University of Electronic Science and Technology of China
来源：
Dianzi Keji Daxue Xuebao/Journal of the University of Electronic Science and Technology of China | 2010年 / 39卷 / 03期
关键词：
Dynamic causal model; Magnetic resonance imaging; Motor execution; Motor imagery;
D O I：
10.3969/j.issn.1001-0548.2010.03.030
中图分类号：
学科分类号：
摘要：
Using the dynamic causal model (DCM), the functional magnetic resonance imaging (fMRI) data of right-hand motor execution (ME) and motor imagery (MI) are analyzed to detect the dynamic networks between contralateral primary motor cortex (M1) and bilateral supplementary motor area (SMA) in the present study. The results show the dominant function of left SMA during both ME and MI, and the suppressive influence of left SMA on left M1 during MI. Furthermore, the difference of the dynamic networks during ME and MI is analyzed and the results suggest the alteration of the influence of the stimulus on the activated regions during ME and MI, implying the transformation of the neural mechanism in dynamic networks of ME and MI.
引用
收藏
页码：457 / 460
页数：3
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