Investigating connectional characteristics of Motor Cortex network


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.

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Hao, 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.

Conflicts of Interest

The authors declare no conflicts of interest.


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