Brain structure and symptom dimensions in borderline personality disorder

Area of Science:

• Neuroimaging
• Neuroscience
• Psychiatry

Background:

• Borderline personality disorder (BPD) exhibits complex symptoms with poorly understood neurobiological underpinnings.
• Research is needed to identify structural brain correlates of BPD symptom dimensions.

Purpose of the Study:

• To investigate structural brain differences in female BPD patients compared to controls.
• To explore the relationship between gray matter volume and specific BPD symptom severity.

Main Methods:

• Voxel-based morphometry (VBM) was applied to high-resolution MRI scans.
• 19 female BPD patients and 50 age-matched female controls were included.
• Correlations between gray matter volume and symptom severity scores (BSL-95, YSQ-S2) were analyzed.

Main Results:

• Bilateral orbitofrontal gray matter loss was observed in BPD patients.
• Gray matter reductions correlated negatively with overall symptom severity in prefrontal, temporal, and occipital cortices, and thalamus.
• Specific symptom dimensions, such as autoaggression and self-perception, were linked to gray matter changes in distinct cortical and subcortical regions.

Conclusions:

• Orbitofrontal structural deficits are confirmed in BPD.
• This study provides preliminary evidence for structural correlates of BPD symptom dimensions, particularly involving dorsolateral and orbitofrontal cortices.