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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
2005-04-01
Source PublicationNEUROIMAGE
ISSN1053-8119
SubtypeArticle
Volume25Issue:2Pages:462-470
AbstractThe 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.
Keywordfunctional magnetic resonance imaging bimanual motor coordination structural equation modeling effective connectivity
Subject Area生理心理学/生物心理学 ; 运动心理学
Indexed BySCI ; SSCI
Language英语
WOS IDWOS:000228344300014
Citation statistics
Cited Times:75[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/5269
Collection中国科学院心理研究所回溯数据库(1956-2010)
Corresponding AuthorX. Hu
Affiliation1.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
Recommended Citation
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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