Fig. 1.
Pathway regions of interest. Sagittal views of the reconstructed WM pathways displayed on a T1-weighted image for one control participant. (A) CCI, CCII, and CCIII [64]: CCI is the most anterior portion of the CC and maintains prefrontal connections between both hemispheres; CCII is the portion that maintains connections between premotor and supplementary motor areas of both hemispheres. CCIII maintains connections between primary motor cortices of both hemispheres. (B) SMA-putamen pathway: this pathway has efferent and afferent projections to the primary motor cortex and is involved in movement execution.