Fig. 2.

Tract Inclusion ROIs and Visual Depiction of Isolated Fibers. Inclusion ROIs used to delineate the motor fibers of the corpus callosum (A), left corticospinal fibers (B), and the left uncinate fasciculus fibers (C), and the resulting fiber tracts shown on the T1-weigthed anatomical image from the target representative scan. Right CST and UF fibers were isolated using similar inclusion ROIs to the above. Note that cortical inclusion ROIs used to isolate the left and right CST were used to delineate the corpus callosum fibers projecting to the cortical motor strip.