(A,B) An interactive effect was found in the dACC (A, F = 17.02, PFWE_SVC = 4.3 x 10−2, MNI coordinates 8, 14, 28). More specifically, the response to envy in the dACC was larger in rs3791878GT/TT-rs53576AG/GG carriers and rs3791878GG-rs53576AA carriers (B, PFWE_SVC = 2.8 x 10−2). Peak locations in the MNI coordinates are shown in Table 6. Each cluster was small-volume corrected using the ROI defined by Shen et al. [50], and the threshold of the image was p < 0.001 and p < 0.005 (uncorrected, yellow and red respectively) for display purposes. The envy-correlated activity at the peak location in B (MNI coordinates 10, 14, 28) is displayed separately for the different groups shown in Fig 4 (rs3791878GT/TT-rs53576AG/GG > rs3791878GT/TT-rs53576AA). (C) Mean envy-induced activities in the rs3791878GG and rs3791878 GT/TT groups are shown in blue and red, respectively.