Obtaining the Connectivity Matrix.

<p>A schematic digram illustrating the major processes involved in generating the final connectivity maps. Streamline fiber tractography was performed on each diffusion tensor image and a connectivity matrix was computed based on the AAL <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0024678#pone.0024678-TzourioMazoyer1" target="_blank">[23]</a> ROIs. The fiber count matrices were constructed by enumerating the number of fibers connecting each region pair. The connectivity matrix, indicating consistent connections, was generated by thresholding the fiber count statistics.