Sound the Alarm: The Effect of Narcissism on Retaliatory Aggression is Moderated by dACC Reactivity to Rejection

摘要

ObjectiveNarcissists behave aggressively when their egos are threatened by interpersonal insults. This effect has been explained in terms of narcissist’s motivation to reduce the discrepancy between their grandiose self and its threatened version, though no research has directly tested this hypothesis. If this notion is true, the link between narcissism and retaliatory aggression should be moderated by neural structures that subserve discrepancy detection, such as the dorsal anterior cingulate cortex (dACC). This study tested the hypothesis that narcissism would only predict greater retaliatory aggression in response to social rejection when the dACC was recruited by the threat.