Citation

Chester DS, Dewall CN. J. Pers. 2015; 84(3): 361-368.

Affiliation

University of Kentucky, USA.

Copyright

(Copyright © 2015, John Wiley and Sons)

DOI

10.1111/jopy.12164

PMID

25564936

Abstract

OBJECTIVE: Narcissists 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.

METHOD: Thirty participants (15 females; MAge =18.86, SD=1.25; 77% White) completed a trait narcissism inventory, were socially accepted and then rejected while undergoing fMRI, and then could behave aggressively towards one of the rejecters by blasting them with unpleasant noise.

RESULTS: When narcissists displayed greater dACC activation during rejection, they behaved aggressively. But there was only a weak or nonsignificant relation between narcissism and aggression among participants with a blunted dACC response.

CONCLUSIONS: Narcissism's role in aggressive retaliation to interpersonal threats is likely determined by the extent to which the brain's discrepancy detector registers the newly-created gap between the grandiose and threatened selves.

Language: en