[Borderline personality : Alterations to brain structure and function through psychotherapy].

BACKGROUND: There are now several scientifically evaluated psychotherapeutic methods for borderline personality disorder (BPD), all of which aim to improve the ability to regulate emotions. In recent years, there have been first studies on the neuronal correlates of the mechanisms of emotion regulation and of changes caused by psychotherapeutic interventions.

METHODS: This article reviews the data on functional and structural imaging studies that examine facets of disturbed emotion regulation before and after psychotherapy.

RESULTS: Although the overall database is still sparse, clinical improvement in psychotherapy appears to be associated with modulation of brain structure and function. Frontolimbic regulation circuits including the amygdala, insula, anterior cingulate cortex (ACC) and other prefrontal areas appear to be involved in these changes. An important finding is the reduction of initially increased amygdala activity after successful Dialectical Behavior Therapy (DBT).

CONCLUSION: The changes shown here most probably reflect an improvement in emotion regulation capacities in BPD and demonstrate the possibility of modulating disturbed emotion regulation processes. Since long-term follow-up data are still missing, the sustainability of the suggestive improvements still has to be proven in further studies.