Name
Title | ||
|---|---|---|
Connectivity exploration with structural equation modeling: an fMRI study of bimanual motor coordination. |
Abstract | ||
|---|---|---|
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 PMdc (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. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1016/j.neuroimage.2004.11.007 | NeuroImage |
Keywords | Field | DocType |
Functional magnetic resonance imaging,Bimanual motor coordination,Structural equation modeling,Effective connectivity | SMA*,Developmental psychology,Dorsum,Structural equation modeling,Functional magnetic resonance imaging,Psychology,Motor Areas,Motor cortex,Motor coordination | Journal |
Volume | Issue | ISSN |
25 | 2 | 1053-8119 |
Citations | PageRank | References |
26 | 2.56 | 6 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jiancheng Zhuang | 1 | 29 | 2.96 |
| Stephen LaConte | 2 | 265 | 28.11 |
| Scott Peltier | 3 | 78 | 7.35 |
| Kan Zhang | 4 | 43 | 8.22 |
| Xiaoping Hu | 5 | 408 | 59.63 |