Borderline personality disorder (BPD) is a serious mental health condition associated with severe symptoms of distress and poor quality of life (QoL). Research outside the field of BPD suggests that ego-resiliency is negatively associated with psychopathology and positively associated with a range of positive life outcomes. Thus, ego-resiliency may be a valuable construct for furthering our understanding and treatment of BPD. However, the mechanisms linking ego-resiliency to psychopathology and QoL in relation to BPD have not been examined and explored by research. This study has addressed this gap in the collective knowledge by evaluating whether within-person associations between daily reports of positive affect (PA) and negative affect (NA) mediated the relationship between ego-resiliency, BPD symptom severity, and QoL. For 21 consecutive days, 72 women diagnosed with BPD completed end-of-day electronic assessments regarding ego-resiliency, PA and NA, symptom severity, and QoL. Multilevel structural equation modelling established that PA and NA were parallel mediators linking ego-resiliency with BPD symptom severity and QoL. As hypothesized, the path to QoL was stronger through PA than through NA. The mediation paths through NA and PA to BPD symptom severity were both significant, but their strength did not differ. Our findings align with the assertions of theories on emotion, thus suggesting a two-factor approach to PA and NA. Future research can build on these findings by developing psychotherapeutic interventions designed not only to reduce symptom severity but also to enhance PA in individuals with BPD and determine whether an increase in PA is associated with improved QoL.

中文翻译：

---

边缘型人格障碍的自我恢复力及其积极和消极影响与其症状严重程度和日常生活质量相关的中介作用

边缘型人格障碍 (BPD) 是一种严重的心理健康状况，与严重的痛苦症状和生活质量 (QoL) 差有关。BPD 领域以外的研究表明，自我弹性与精神病理学呈负相关，并与一系列积极的生活结果呈正相关。因此，自我弹性可能是促进我们对 BPD 的理解和治疗的有价值的构建。然而，尚未通过研究检查和探索将自我弹性与精神病理学和与 BPD 相关的 QoL 联系起来的机制。本研究通过评估积极情绪 (PA) 和消极情绪 (NA) 的日常报告之间的个人内部关联是否介导了自我弹性、BPD 症状严重程度和 QoL 之间的关系，从而解决了集体知识中的这一差距。连续21天，72 名被诊断患有 BPD 的女性完成了关于自我弹性、PA 和 NA、症状严重程度和 QoL 的日终电子评估。多层次结构方程模型确定 PA 和 NA 是将自我弹性与 BPD 症状严重程度和 QoL 联系起来的平行中介。正如假设的那样，通过 PA 获得 QoL 的途径比通过 NA 更强。通过 NA 和 PA 到 BPD 症状严重程度的中介路径都很显着，但它们的强度没有差异。我们的发现与情绪理论的断言一致，因此建议对 PA 和 NA 采取双因素方法。未来的研究可以建立在这些发现的基础上，开发心理治疗干预措施，不仅旨在降低症状的严重程度，而且还可以增强 BPD 患者的体力活动，并确定体力活动的增加是否与改善 QoL 相关。