Fig. 4: NS in the rDLPFC (channel 11) and rTPJ (channel 13) and its correlation with outgroup likability during competition and cooperation.

a NS in the rDLPFC during competition as the first interaction (competition-to-cooperation condition) negatively correlates with outgroup likability (Pearson’s r = −0.257, p = 0.003, n = 34 dyads). b NS in the rTPJ during cooperation as the second interaction (competition-to-cooperation condition) does not significantly correlate with outgroup likability. c NS in the during cooperation as the first interaction (cooperation-to-competition condition) positively correlates with outgroup likability (Pearson’s r = 0.192, p = 0.023, n = 35 dyads). d NS in the rDLPFC during competition as the second interaction (cooperation-to-competition condition) does not significantly correlate with outgroup likability. Correlations were performed using Pearson’s correlation coefficient. Each circle represents the averaged outgroup likability within a dyad (y-axis) and NS in the rDLPFC or rTPJ (x-axis). The solid line indicates the least squares fit, with shading showing the 95% confidence interval.