February 2025
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Current Psychology
Vulnerable and grandiose narcissism may relate differentially to psychological states following ego-threat. We hypothesized that following ego-threat, more (vs. less) vulnerable narcissistic people would be more motivated toward action as evidenced by neural correlates of action preparation (suppressed motor-cortical beta activity) when a competitive opportunity is present (vs. not present). Participants (N = 34; 67.6% female) completed measures of vulnerable and grandiose narcissism and baseline electroencephalography activity; subsequently, they received ego-threat via insulting feedback and later learned they would have the opportunity to compete against the insulter. Electroencephalography activity was recorded just after the insult and once again after learning about the competition opportunity. Vulnerable but not grandiose narcissism was associated with enhanced perceived ego-threat after the insult and greater suppressed beta activity after learning about the competition opportunity relative to baseline or just after the insult; moreover, this greater suppressed beta activity associated with vulnerable narcissism was nullified upon accounting for its overlap with perceived ego-threat. Only vulnerable narcissism related to more action preparation potentially to engage in motivated behavior to repair their ego in response to a greater perceived ego-threat. Broadly, the findings bolster the view that vulnerable and grandiose narcissistic individuals may not share similar reactions to ego-threat, such that vulnerable narcissistic responding entails greater perception of ego-threat and motivation to redress the slight.