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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 195-196Evaluation of Causal Influences in Model of Motor...

Evaluation of Causal Influences in Model of Motor Control in Left Hands Movement-Readiness State

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Abstract:

The previous research revealed some functional coupling among nodes in model of motor control in human brain, which described nondirectional synchronous actions among these nodes during movement-readiness state. However, causal relationships among these nodes were still lack, which represented some directional interactions among these nodes in movement-readiness state. In the present study, we used functional magnetic resonance imaging (fMRI) and conditional Granger causality (CGC) method to investigate the interactions in model of motor control in movement-readiness state. Our result showed that upper precuneus and cingulate motor area revealed net causal influences with contralateral supplementary motor areas and contralateral caudate nucleus during the left hands movement-readiness state. Moreover, the results of Out-In degrees indicated that bilateral primary sensorimotor areas revealed competitive relationship during left hands movement-readiness.

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Mechanical Engineering and Intelligent Systems

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Periodical:

Applied Mechanics and Materials (Volumes 195-196)

Pages:

418-423

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.195-196.418

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Online since:

August 2012

Authors:

Yu Qing Wang, Hua Fu Chen, Ling Zeng

Keywords:

Conditional Granger Causality Analysis, Movement-Readiness

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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