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Regular version of the site

Article

The role of the temporoparietal and prefrontal cortices in third-party punishment: a tDCS study

Psychology. Journal of the Higher School of Economics. 2019. Vol. 16. No. 3. P. 529-550.

Recent studies have demonstrated that the right dorsolateral prefrontal cortex
(rDLPFC) and the right temporoparietal junction (rTPJ) are causally involved in social
norm compliance. Here, we tested the hypothesis that a third party's decision to punish
norm violations depends on the activity of the entire rDLPFC/rTPJ network. We used
transcranial direct current stimulation (tDCS) to independently or jointly modulate rTPJ
and rDLPFC activity during the third-party dictator game. We found a significant effect
of anodal tDCS of the rTPJ, which decreased the third-party punishment of moderately
unfair splits. Joint stimulation of the rTPJ (by anodal tDCS) and rDLPFC (by cathodal
tDCS) produced a marginal effect on third-party punishment.