The present study examines whether dimensions of pathological narcissism are associated with the presence, frequency, and function of nonsuicidal self-injury (NSSI). Adults (N = 252) completed questionnaires assessing narcissistic grandiosity, narcissistic vulnerability, fluctuation between these narcissistic states, and borderline personality disorder (BPD) symptoms. Those with a history of NSSI (n = 105) also reported the method, frequency, and function of their NSSI engagement. When controlling for co-occurring BPD symptoms, there were very few associations between vulnerability, grandiosity, and narcissistic fluctuation and NSSI presence and frequency. However, a clear pattern emerged regarding NSSI functions. Although vulnerability and narcissistic fluctuation were not associated with any functions of NSSI when co-occurring BPD symptoms were controlled for, grandiosity was positively associated with all interpersonal functions of NSSI (e.g., peer bonding, revenge) and negatively associated with the intrapersonal function of affect regulation. These results suggest a unique relationship between narcissistic grandiosity and NSSI that may inform clinical intervention.

中文翻译：

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伤害浮夸的自我：检查病理性自恋中非自杀性自伤的存在、频率和功能。

本研究探讨了病理性自恋的维度是否与非自杀性自残（NSSI）的存在、频率和功能相关。成年人 (N = 252) 完成了评估自恋自大、自恋脆弱性、这些自恋状态之间的波动以及边缘性人格障碍 (BPD) 症状的调查问卷。有 NSSI 病史的人 (n = 105) 还报告了他们参与 NSSI 的方法、频率和功能。当控制同时发生的 BPD 症状时，脆弱性、自大和自恋波动与 NSSI 的存在和频率之间几乎没有关联。然而，关于 NSSI 功能出现了一个清晰的模式。虽然当控制同时发生的 BPD 症状时，脆弱性和自恋波动与 NSSI 的任何功能无关，但自大与 NSSI 的所有人际功能（例如，同伴关系、报复）呈正相关，与情感的个人内部功能呈负相关。规定。这些结果表明自恋狂妄和 NSSI 之间存在独特的关系，这可能为临床干预提供信息。