Narcissists have a relatively higher proclivity for displaying antisocial rather than prosocial behaviors, suggesting a comparatively higher tendency for unfavorably impacting societies. However, maintenance of social order also depends on appropriate responses to others’ social behavior. Once we focus on narcissists as observers rather than actors, their impact on social functioning becomes less clear-cut. Theoretical arguments suggest that narcissists could be either hypo-responsive or hyper-responsive to others’ social behavior. Across four studies, we examined narcissists’ responsiveness to variations in others’ antisocial and prosocial behaviors. Results showed that narcissists differentiated less between others’ antisociality/prosociality, as reflected in their subsequent moral character evaluations (Studies 1–4) and reward and punishment (Studies 3 and 4). These results suggest that narcissists are hypo-responsive to others’ social behaviors. Implications and directions for future research are discussed.

自恋者表现出反社会而非亲社会行为的倾向相对较高，这表明对社会产生不利影响的倾向相对较高。然而，社会秩序的维持也取决于对他人社会行为的适当反应。一旦我们将自恋者作为观察者而不是行为者，他们对社会功能的影响就变得不那么明确了。理论论证表明，自恋者可能对他人的社会行为反应迟钝或反应过度。在四项研究中，我们检查了自恋者对他人反社会和亲社会行为变化的反应。结果表明，自恋者对他人的反社会性/亲社会性的区分较小，正如他们随后的道德品格评估（研究 1-4）和奖惩（研究 3 和 4）所反映的那样。这些结果表明，自恋者对他人的社会行为反应迟钝。讨论了未来研究的意义和方向。