成人抑郁癥心理治療早期大腦白質(zhì)纖維完整性研究
[Abstract]:Background: there is considerable evidence that antidepressants are almost as effective as psychotherapy in the treatment of severe depression. Previous studies have used functional magnetic resonance to study depression and changes in regional cerebral blood flow resulting from treatment, but there is still no evidence that treatment can lead to changes in the microstructures of white matter fibers. Objective: to explore the specific changes of white matter in adult patients with severe depression after guided psychotherapy with diffuse Zhang Liang imaging. Methods: a total of 21 patients with severe depression (16 females, 5 males, mean age 29.6 years) were enrolled in this study. They were examined by diffusive Zhang Liang imaging before and after 4 weeks of psychotherapy, and 22 healthy subjects (14 females and 8 males) were enrolled in the study. The average age was 30.2 years. Results: compared with healthy controls, the right thalamus, cerebellar vermis, right posterior central gyrus and right posterior gyrus showed a significant increase in anisotropic fraction, and the right cuneate lobe decreased after four weeks of treatment. An area of increased anisotropy appeared in the white matter of the left frontal lobe. Conclusion: in the early stage of psychotherapy, anisotropy scores were increased in the regions associated with emotional regulation in the frontal lobe, indicating that psychotherapy could cause changes in the white matter of the frontal lobe. This may be done by reinventing the connections of nodes in the brain's emotional regulatory network, and the results support the "top-down" mechanism of psychotherapy.
【學(xué)位授予單位】:重慶醫(yī)科大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2013
【分類號】:R749.4
【共引文獻(xiàn)】
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