Connectivity exploration with structural equation modeling: an fMRI study of bimanual motor coordination

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	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
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
	2005-04-01
语种	英语
发表期刊	NEUROIMAGE
ISSN	1053-8119
卷号	25 期号:2 页码:462-470
期刊论文类型	Article
收录类别	SCI ; SSCI
WOS记录号	WOS:000228344300014
引用统计	被引频次：84[WOS] [WOS记录] [WOS相关记录]
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
推荐引用方式 GB/T 7714	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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