A randomized clinical trial (RCT) was conducted to test the impact of Functional Analytic Psychotherapy (FAP) on individuals diagnosed with borderline personality disorder (BPD) who had finished treatment as usual (TAU) at a public institution in Mexico City. Two groups receiving 8 sessions of FAP (n=26) or Interpersonal Skills training (n=24) where compared. T-test analyses found statistically significant (p<0.05) and large (Cohen's d≥0.80) improvements for FAP group participants at post-test compared to pre-test in BPD symptom severity, intimacy, experience of self and emotion regulation. Between groups analysis found statistically significant and large effects in favor of FAP, with the largest differences observed in intimacy. Regression analysis found a reduction in the relation between intimacy and BPD severity before (R 2 =0.324) and after FAP treatment (R 2 =0.11). These results suggest FAP's possible utility as an adjunct treatment for BPD.
El trastorno límite de la personalidad (tlp) se encuentra entre las condiciones más costosas para quienes la padecen, su entorno social y las instituciones que asumen el reto de su tratamiento. Las intervenciones con soporte empírico para este problema siguen mostrando beneficios limitados. Las terapias conductual-contextuales representan una alternativa prometedora y, desde esta perspectiva, se ofrecen dos aportaciones para la comprensión y el tratamiento de este trastorno: se desarrolla un modelo del tlp, y se menciona la utilidad de diversas técnicas conductual-contextuales de intervención; estrategias de conciencia plena, analítico funcionales, modificación y activación conductual. Finalmente, se revisa el estado empírico de estas intervenciones. El artículo se propone contribuir a la comprensión y el desarrollo de tratamientos efectivos para este problema.
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