Objectives: We examine correlates and predictors for implicit associations with non-suicidal self-injury (NSSI) with the Self-Injury Implicit Association Test (SI-IAT) in a treatment-seeking sample. We also examine group differences in the SI-IAT among those with low/none, moderate and high/clinically significant borderline personality disorder (BPD) symptomatology in a treatment-seeking sample.

Methods: Participants (N = 111; 58% female; 89% White; M_age = 30.25) completed the SI-IAT and self-report measures at two time points.

Results: Higher BPD symptom scores were significantly, positively correlated with implicit identification with NSSI, and predicted NSSI identity when controlling for depression indices, history of NSSI and other covariates. With Time 1 SI-IAT scores entered as a covariate, BPD scores no longer significantly predicted Time 2 SI-IAT scores. Individuals with moderate and high/clinically significant symptom counts of BPD had higher/stronger implicit associations with NSSI identity than those with no/low BPD symptoms.

Conclusions: Individuals with symptoms of BPD may implicitly identify with NSSI more than other clinical groups; examination of implicit assessments in BPD in future research is needed to further explore implicit identification with NSSI in this patient group to further understand both cross-sectional and prospective relations.

Keywords: borderline personality disorder; implicit identity; non‐suicidal self‐injury; self‐injury implicit association test.

© 2024 British Psychological Society.

目标： 我们使用自我伤害隐性关联测试（SI-IAT）在寻求治疗的样本中研究与非自杀性自伤（NSSI）的隐性关联的相关因素和预测因子。我们还研究了具有低/无、中等以及高/临床显著边缘型人格障碍（BPD）症状个体之间的SI-IAT差异，同样是在一个寻求治疗的样本中进行。

方法： 参与者（N = 111；58%为女性；89%为白人；平均年龄M_age = 30.25）在两个时间点完成了SI-IAT和自陈量表。

结果： BPD症状得分较高，与隐性认同NSSI显著正相关，并且在控制抑郁指标、NSSI历史和其他协变量的情况下预测了NSSI身份。将Time 1的SI-IAT分数作为协变量输入后，BPD得分不再显著预测Time 2的SI-IAT分数。具有中等和高/临床显著症状计数的BPD个体与NSSI身份的隐性关联比无或低BPD症状的个体更高更强。

结论： 患有边缘型人格障碍的人可能比其他临床组更隐性地认同自我伤害；未来研究需要进一步探讨该患者群体中的隐性识别，以更好地理解横断面和前瞻性关系。

关键词： 边缘型人格障碍；隐性身份；非自杀性自伤；自我伤害隐性关联测试。