Connectivity exploration with structural equation modeling: an fMRI study of bimanual motor coordination
Zhuang, JC; LaConte, S; Peltier, S; Zhang, K; Hu, XP; X. Hu
2005-04-01
发表期刊NEUROIMAGE
ISSN1053-8119
文章类型Article
卷号25期号:2页码:462-470
摘要The present fMRI study explores the connectivity among motor areas in a bimanual coordination task using the analysis framework of structural equation modeling (SEM). During bimanual finger tapping at different frequency ratios, temporal correlations of activations between left/right primary motor cortices (MI), left/right PMde (caudal dorsal premotor area) and supplementary motor cortex (SMA) were detected and used as inputs to the SEM analysis. SEM was extended from its traditional role as a confirmatory analysis to be used as an exploratory technique to determine the most statistically significant connectivity model given a set of cortical areas based on anatomic constraints. The resultant network exhibits coupling from left MI to right MI, links from both PMs to the two MIs, a negative interaction from left PM to right PM, and functional influence from SMA to right MI and right PM, revealing contributions of these areas to bimanual coordination.; The present fMRI study explores the connectivity among motor areas in a bimanual coordination task using the analysis framework of structural equation modeling (SEM). During bimanual finger tapping at different frequency ratios, temporal correlations of activations between left/right primary motor cortices (MI), left/right PMde (caudal dorsal premotor area) and supplementary motor cortex (SMA) were detected and used as inputs to the SEM analysis. SEM was extended from its traditional role as a confirmatory analysis to be used as an exploratory technique to determine the most statistically significant connectivity model given a set of cortical areas based on anatomic constraints. The resultant network exhibits coupling from left MI to right MI, links from both PMs to the two MIs, a negative interaction from left PM to right PM, and functional influence from SMA to right MI and right PM, revealing contributions of these areas to bimanual coordination. (c) 2004 Elsevier Inc. All rights reserved.
关键词functional magnetic resonance imaging bimanual motor coordination structural equation modeling effective connectivity
学科领域生理心理学/生物心理学 ; 运动心理学
收录类别SCI ; SSCI
语种英语
WOS记录号WOS:000228344300014
引用统计
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/5269
专题中国科学院心理研究所回溯数据库(1956-2010)
通讯作者X. Hu
作者单位1.Emory Univ, Georgia Inst Technol, Dept Biomed Engn, Biomed Imaging Technol Ctr, Atlanta, GA 30322 USA
2.Columbia Univ, Dept Psychiat, Magnet Resonance Imaging Unit, New York, NY 10027 USA
3.Chinese Acad Sci, Inst Psychol, Beijing, Peoples R China
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Zhuang, JC,LaConte, S,Peltier, S,et al. Connectivity exploration with structural equation modeling: an fMRI study of bimanual motor coordination[J]. NEUROIMAGE,2005,25(2):462-470.
APA Zhuang, JC,LaConte, S,Peltier, S,Zhang, K,Hu, XP,&X. Hu.(2005).Connectivity exploration with structural equation modeling: an fMRI study of bimanual motor coordination.NEUROIMAGE,25(2),462-470.
MLA Zhuang, JC,et al."Connectivity exploration with structural equation modeling: an fMRI study of bimanual motor coordination".NEUROIMAGE 25.2(2005):462-470.
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