BACKGROUND: Using magnetic resonance imaging (MRI) and resting-state functional magnetic resonance imaging (rsfMRI) to explore the mechanism of brain structure and function in unmedicated patients with major depressive disorder (MDD). PATIENTS AND METHODS: Fifty patients with MDD and 50 matched healthy control participants free of psychotropic medication underwent high-resolution structural and rsfMRI scanning. Optimized diffeomorphic anatomical registration through exponentiated lie algebra and the Data Processing Assistant for rsfMRI were used to find potential differences in gray-matter volume (GMV) and regional homogeneity (ReHo) between the two groups. A Pearson correlation model was used to analyze associations of morphometric and functional changes with clinical symptoms. RESULTS: Compared to healthy controls, patients with MDD showed significant GMV increase in the left posterior cingulate gyrus and GMV decrease in the left lingual gyrus (P{
CITATION STYLE
Ma, X., Yang, X., Ma, X., Li, M., Liu, Y., Zhang, J., … Li, T. (2015). Anatomical and functional brain abnormalities in unmedicated major depressive disorder. Neuropsychiatric Disease and Treatment, 2415. https://doi.org/10.2147/ndt.s93055
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