JBiSE  Vol.2 No.1 , February 2009
Investigating connectional characteristics of Motor Cortex network
ABSTRACT
To understand the connectivity of cerebral cor-tex, especially the spatial and temporal pattern of movement, functional magnetic resonance imaging (fMRI) during subjects performing finger key presses was used to extract functional networks and then investigated their character-istics. Motor cortex networks were constructed with activation areas obtained with statistical analysis as vertexes and correlation coefficients of fMRI time series as linking strength. The equivalent non-motor cortex networks were constructed with certain distance rules. The graphic and dynamical measures of motor cor-tex networks and non-motor cortex networks were calculated, which shows the motor cortex networks are more compact, having higher sta-tistical independence and integration than the non-motor cortex networks. It indicates the motor cortex networks are more appropriate for information diffusion.

Cite this paper
nullHao, D. and Li, M. (2009) Investigating connectional characteristics of Motor Cortex network. Journal of Biomedical Science and Engineering, 2, 30-35. doi: 10.4236/jbise.2009.21006.
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