Limbic gray matter increases in response to cognitive-behavioral therapy in major depressive disorder.

ABSTRACT: Major depressive disorder (MDD) is related to volumetric decreases in (cortico-)limbic brain regions. In contrast to pharmacological and electroconvulsive therapy, little is known about the brain structural effects of psychotherapy and potential links to symptom improvements. In a naturalistic longitudinal study using structural magnetic resonance tomography, gray matter volume (GMV) and clinical measures were assessed in 30 outpatients with MDD before and after 20 cognitive-behavioral therapy (CBT) sessions. Data from 30 healthy controls was acquired. Region-of-interest analyses revealed significant GMV increases within patients for the right anterior hippocampus and the bilateral amygdala, resulting in a significant group-by-time interaction for the left amygdala (p ≤ 0.022). Simultaneou

SUBMITTER: Zwiky E 

PROVIDER: S-EPMC12381077 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature