TABLE 2.

VMHC differences among PDD, PDND, and HCs.

Brain region	Number of voxels (cluster size)	MNI coordinates of local maxima			Peak z/t value
		x	y	z
PCG	83	± 33	−27	45	14.56
MFG/PCL	16	± 9	−30	57	9.671
HCs vs. PDD
Precentral (PCG)	83	± 33	−27	45	5.507
MFG/PCL	16	± 9	−30	57	4.167
HCs vs. PDND
Precentral (PCG)	83	± 33	−27	45	4.199
PDD vs. PDND
MFG/PCL	16	± 9	−30	57	−3.096

PDD, PD patients with depression; VMHC, voxel-mirrored homotopic connectivity; PCG, precentral gyrus; MFG, medial frontal gyrus; PCL, paracentral lobule; PD, Parkinson’s disease; PDND, PD patients without depression; HCs, healthy controls; MNI, Montreal Neurological Institute.