FIG. 2.

A: Connectivity maps taken from a representative subject. The white matter tract regions of interest in red are used as starting seeds for connectivity mapping, and diffusion MRI data are used to generate connectivity maps. Yellow voxels in these images indicate high connectivity to the original region of interest. The connectivity maps and starting seeds are shown for the optic radiations white matter tract (top left), posterior corona radiata (top right), and splenium of corpus callosum (bottom). A representative axial (on the left) and coronal view (on the right) is shown for each case. B: The overlap between the connectivity map and cortical regions is used to determine which cortical regions have high connectivity with the original white matter regions of interest. In this representative subject, the lateral occipital gyral cortical boundary is shown in blue in the upper image, and overlap with the optic radiations connectivity map is shown in yellow in the lower image. (A high-quality digital representation of this figure is available in the online issue.)