期刊
PSICOTHEMA
卷 33, 期 3, 页码 407-414出版社
COLEGIO OFICIAL DE PSICOLOGOS DE ASTURIAS
DOI: 10.7334/psicothema2020.437
关键词
Borderline personality disorder; mindfulness; decentering; emotion dysregulation; mediation analysis
资金
- Centro de Investigacion Biomedica en Red de Salud Mental (CIBERSAM)
- Instituto de Salud Carlos III [PI19/00087]
- European Regional Development Fund (ERDF) - National Agency for Research and Development (ANID)/Becas-Chile fellowship Program [201872190624]
The study compared the effectiveness of mindfulness-based DBT skills training and interpersonal effectiveness-based DBT skills training in reducing BPD symptoms, with DBT-M showing greater efficacy. A serial mediation model was identified, demonstrating that reducing emotion dysregulation by increasing decentering ability is an effective mechanism of DBT-M.
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.
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