Fig. 2.

(A) Display of means and standard errors of rejection rates of unfair offers in the ‘fair alternative’ and ‘no alternative’ conditions collapsed over groups, and difference scores (fair alternative–no alternative) in rejection rates for each group separately. (B) Network of brain regions that was more active for accepting than rejecting unfair offers: (rTPJ: right temporal parietal junction [54, −45, 41], rIFG: right inferior frontal gyrus [54, 12, 18], dACC: dorsal anterior cingulate cortex [3, 18, 27], PCC [0, −33, 30], anterior insula: anterior insula [36, 15, 19], Vstr: bilateral ventral striatum [14, 9, −4] and [−12, 9, −4]. Cluster corrected threshold: P < 0.001 and k > 24 voxels.