Fig. 1: Group differences in placebo condition.

a, Reduced modulation by fearful intensity in bilateral mid-cingulate cortex and right anterior insula in violent offenders with ASPD + P (n = 19) compared with violent offenders with ASPD – P (n = 15), placebo condition, P = 0.005. Color bar represents t statistic. b, Individual beta values for fear processing (modulated fear regressor) in bilateral mid-cingulate cortex, placebo condition, P = 0.005. Individual participants’ data plotted as dots. Means are indicated by horizontal bars. Error bars represent standard deviations. Findings in insula did not survive multiple comparison corrections. For NO, n = 24.