Human morphometry. Regional GM volume in DCC^+/− carriers, DCC^+/+ relatives, and UHVs. A–F, Targets identified in whole-brain voxel-based morphometry and regions of interest comprised the (A) putamen, (B) nucleus accumbens (NAcc), (C) caudate nucleus, (D) hippocampus, (E) vmPFC, and (F) mPFC/ACC. *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001.