BACKGROUND Mindfulness skills training is a core component of dialectical behavior therapy (DBT) that has proven to be an effective stand-alone treatment for the general symptoms commonly present in patients with borderline personality disorder (BPD). The aim of the present study was to compare the effectiveness of mindfulness-based DBT skills training (DBT-M) to interpersonal effectiveness-based DBT skills training (DBT-IE) in reducing BPD symptoms. We also evaluated the specific mechanism of action of these therapies through two proposed mediators: decentering and emotion dysregulation. METHOD A total of 102 participants diagnosed with BPD were included in the study. Multivariate repeated-measures ANOVAs were performed followed by a multiple mediation analysis. RESULTS The analyses showed that DBT-M was more effective than DBT-IE in reducing BPD symptoms, although both interventions were effective in reducing emotion dysregulation. We identified a serial mediation model in which DBT-M reduced BPD symptoms by increasing decentering ability, which in turn reduced emotion dysregulation. This mediation effect showed that changes in decentering preceded improvements in emotion dysregulation. CONCLUSIONS These findings underscore the key role of decentering as a primary mechanism of action in DBT-M, suggesting that this skill is a main component for BPD treatment.

中文翻译：

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边缘型人格障碍中的正念：去中心化调节有效性。

背景正念技能训练是辩证行为疗法（DBT）的核心组成部分，已被证明是治疗边缘型人格障碍（BPD）患者普遍存在的一般症状的有效的独立治疗方法。本研究的目的是比较基于正念的 DBT 技能培训（DBT-M）与基于人际有效性的 DBT 技能培训（DBT-IE）在减少 BPD 症状方面的有效性。我们还通过两个提议的调解器评估了这些疗法的具体作用机制：去中心化和情绪失调。方法 共有 102 名被诊断患有 BPD 的参与者被纳入研究。进行多变量重复测量方差分析，然后进行多重中介分析。结果 分析表明，DBT-M 在减轻 BPD 症状方面比 DBT-IE 更有效，尽管这两种干预措施在减轻情绪失调方面都很有效。我们确定了一个串行调解模型，其中 DBT-M 通过增加去中心化能力来减少 BPD 症状，从而减少情绪失调。这种中介效应表明，去中心化的变化先于情绪失调的改善。结论这些发现强调了去中心作为 DBT-M 中主要作用机制的关键作用，表明该技能是 BPD 治疗的主要组成部分。这种中介效应表明，去中心化的变化先于情绪失调的改善。结论这些发现强调了去中心作为 DBT-M 中主要作用机制的关键作用，表明该技能是 BPD 治疗的主要组成部分。这种中介效应表明，去中心化的变化先于情绪失调的改善。结论这些发现强调了去中心作为 DBT-M 中主要作用机制的关键作用，表明该技能是 BPD 治疗的主要组成部分。