(A) Glass brains depicting clusters in which GMV was negatively associated with total TriPM (left) and total PPI-R (right) after controlling for age, IQ and TIV. TriPM and PPI-R results overlap in a cluster including the left striatum, mid-posterior insula and amygdala (red circle), in which lower GMV was associated with higher total psychopathy scores (results displayed at an exploratory threshold of P < 0.005 uncorrected, 341 voxel threshold). (B) Negative association between TriPM total score and GMV in the left striatum (P < 0.001, uncorrected, 341 voxel threshold).