To investigate the relationship between subclinical body dysmorphic symptoms and gray matter volume in specific brain regions, emphasizing the significance of gender differences.
Key Findings:
Significant interaction between body dysmorphic symptom severity and gender in the right inferior occipital gyrus (IOG), with men showing greater gray matter volume and women showing lower volume.
Similar interaction effects were observed in the right amygdala and bilateral hippocampus, though not statistically significant after correction.
Women reported higher body dysmorphic symptom scores, while men reported higher alexithymia scores, particularly in describing feelings.
No significant associations between alexithymia and body dysmorphic symptoms in men after correction.
Interpretation:
Findings suggest gender-specific neurobiological pathways in visual processing related to body dysmorphic symptoms, with implications for understanding emotional and social information processing in clinical practice.
Limitations:
Cross-sectional design limits causal inference.
Findings may not generalize to diagnosed BDD patients.
Reliance on self-reported symptoms may affect accuracy and interpretation, and there is an imbalance in gender representation.
Conclusion:
Insights from subclinical samples may inform the etiology of BDD and aid in developing prevention strategies, highlighting the need for future research.
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