• A
  • A
  • A
  • ABC
  • ABC
  • ABC
  • А
  • А
  • А
  • А
  • А
Regular version of the site

Article

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

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.