Dialectical behavior therapy skills training affects defense mechanisms in borderline personality disorder: An integrative approach of mechanisms in psychotherapy.

Objective: Borderline personality disorder (BPD) is characterized by immature defense mechanisms. Dialectical behavior therapy (DBT) is an effective treatment for BPD. However, understanding the underlying mechanisms of change is still limited. Using a transtheoretical framework, we investigated the effect of DBT skills training on defense mechanisms. Method: In this randomized controlled trial, 16 of 31 BPD outpatients received DBT skills training adjunctive to individual treatment as usual (TAU), while the remaining 15 received only individual TAU. Pre-post changes of defense mechanisms, assessed with the Defense Mechanism Rating Scale, were compared between treatment conditions using ANCOVAs. Partial correlations and linear regressions were conducted to explore associations between defenses and symptom outcome. Results: Overall defense function improved significantly more in the skills training condition (F(1, 28) = 4.57, p = .041). Borderline defenses decreased throughout skills training, but not throughout TAU only (F(1, 28) = 5.09, p = .032). In the skills training condition, an increase in narcissistic defenses was associated with higher symptom scores at discharge (β = 0.58, p = .02). Conclusions: Although DBT does not explicitly target defense mechanisms, skills training may have favorable effects on defense function in BPD. Our findings contribute to an integrative understanding of mechanisms of change in BPD psychotherapy

Mentalisierungsbasierte Therapie bei Narzisstischer Persönlichkeitsstörung

ie Behandlung von Patienten mit Narzisstischer Persönlichkeitsstörung (NPS) stellt für Psychotherapeuten eine besondere Herausforderung dar. Bisher ist die Mentalisierungsbasierte Therapie (MBT) v. a. zur Behandlung der Borderline-Persönlichkeitsstörung etabliert und evidenzbasiert, jedoch bietet sie auch einen vielversprechenden Ansatz zur Behandlung der NPS [1]

Impact of childhood maltreatment in borderline personality disorder on treatment response to intensive dialectical behaviour therapy

Childhood maltreatment (CM), including emotional, physical, and sexual abuse and emotional and physical neglect, is associated with severity of borderline personality disorder (BPD). However, knowledge on the impact of CM on treatment response is scarce. The authors investigated whether self-reported CM or one of its subtypes affected treatment retention, depressive symptoms, and impulsivity throughout short-term intensive dialectical behavior therapy (I-DBT) in 333 patients with BPD. Data were analyzed with linear and logistic regressions and linear mixed models, using a Bayesian approach. Patients who reported childhood emotional abuse had a higher dropout rate, whereas it was lower in patients who reported childhood emotional neglect. Emotional neglect predicted a greater decrease of depressive symptoms, and global CM predicted a greater decrease of impulsivity. The authors concluded that patients with BPD who experienced CM might benefit from I-DBT in specific symptom domains. Nonetheless, the impact of emotional abuse on higher dropout needs to be considered