“…In this meta-analysis, we did not find any spatial convergence in VS and other brain regions involved in the reward system, indicating that retaliatory behaviors in healthy subjects may not be as “ pleasurable ” as previously expected. Nevertheless, we cannot rule out the possibility that the VS activation during retaliation (or when viewing others in pain) may be specific to some clinical populations such as CP/ASPD with psychopathic traits and/or high levels of sadistic traits (Decety, Chen, Harenski, & Kiehl, 2013; Decety, Michalska, Akitsuki, & Lahey, 2009; Harenski, Thornton, Harenski, Decety, & Kiehl, 2012; Perino, Moreira, & Telzer, 2019). Further research is needed to examine this possibility.…”