Theoretical perspectives on non-suicidal self-injury (NSSI; direct and deliberate self-injury without lethal intent such as self-cutting or hitting) have long underscored the affective regulating properties of NSSI. Less attention has been given to the processes through which individuals choose to engage in NSSI, specifically, to regulate their distress. In the present study, we tested one theoretical model in which recent stressful experiences facilitates NSSI through emotional reactivity. Further, we tested whether the indirect link between stressful experiences and NSSI was moderated by several NSSI specific risk factors (e.g., having friends who engage in NSSI). Given the widespread prevalence of NSSI among community-based samples of adolescents and emerging adults, we surveyed 1,125 emerging adults in first-year university at a large academic institution (72% female, Mage = 17.96, 25% with a recent history of NSSI at Time 1). Participants completed an online survey three times (assessments were 4 months apart), reporting on their recent stressful experiences in university, emotional reactivity, NSSI, as well as three NSSI specific risk factors (i.e., close friend engagement in NSSI, high self-disgust, and low fear of pain). As expected, path analysis revealed that there was a significant indirect effect of recent stressful experiences on NSSI engagement, through emotional reactivity. However, this effect was maintained across moderator analyses. These novel findings underscore the salient role of proximally occurring stressors in the prediction of NSSI among emerging adults in university, and can inform developing theoretical perspectives on NSSI.

关于非自杀性自我伤害的理论观点（NSSI；无致命意图（如自伤或击打）的直接故意蓄意伤害）长期以来都强调了NSSI的情感调节特性。人们对个人选择参与NSSI的过程的关注较少，特别是用来调节自己的困扰的过程。在本研究中，我们测试了一种理论模型，其中最近的压力经历通过情绪反应促进了NSSI。此外，我们测试了压力经历与NSSI之间的间接联系是否被某些NSSI特定的风险因素（例如，有从事NSSI的朋友）所缓解。鉴于NSSI在以社区为基础的青少年和新兴成年人中普遍存在，我们对1进行了调查，中号年龄= 17.96，其中25％的人在时间1时有NSSI的近期病史。参与者完成了3次在线调查（评估间隔为4个月），报告了他们最近在大学中的压力经历，情绪反应，NSSI以及三个NSSI特定的风险因素（即，与NSSI的密友互动，极高的自我厌恶感） ，并且对痛苦的恐惧感较低）。正如预期的那样，路径分析显示，最近的压力经历通过情感反应对NSSI参与有显着的间接影响。但是，这种影响在主持人分析中得以维持。这些新颖的发现强调了在大学中新兴成年人中，近端应激源在预测NSSI中的重要作用，并且可以为有关NSSI的理论发展提供信息。