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논문 기본 정보

자료유형
학술저널
저자정보
Kiriyama Tomohiko (Department of Rehabilitation Science Graduate School of Health Sciences Kobe University) Tanemura Rumi (Department of Rehabilitation Science Graduate School of Health Sciences Kobe University) Nakamura Yoshihiro (Department of Psychiatry Arima Hospital) Takemoto Chiaki (Department of Psychiatry Arima Hospital) Hashimoto Mariko (Department of Psychiatry Arima Hospital) Utsumi Hirohiko (Department of Psychiatry Arima Hospital)
저널정보
대한신경정신의학회 PSYCHIATRY INVESTIGATION PSYCHIATRY INVESTIGATION 제17권 제8호
발행연도
2020.1
수록면
804 - 813 (10page)

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초록· 키워드

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Objective Substantial research has revealed cognitive function impairments in patients with major depressive disorder (MDD). However, the relationship between MDD cognitive function impairment and brain activity is yet to be elucidated. This study aimed to reveal this relationship using near-infrared spectroscopy (NIRS) to extensively measure frontotemporal cortex function.Methods We recruited 18 inpatients with MDD and 22 healthy controls. Regional oxygenated hemoglobin changes (oxy-Hb) were measured during a verbal fluency task and its relationship to cognitive function was assessed. Cognitive function was assessed using the Japanese version of the Brief Assessment of Cognition in Schizophrenia.Results Compared to healthy controls, patients with MDD displayed poorer motor speed, attention and speed of information processing, and executive function. In the bilateral prefrontal and temporal surface regions, regional oxy-Hb changes were significantly lower in patients with MDD than in healthy individuals. Moreover, we observed a correlation between reduced activation in the left temporal region and poor motor speed in patients with MDD.Conclusion We suggest that reduced activation in the left temporal region in patients with MDD could be a biomarker of poor motor speed. Additionally, NIRS may be useful as a noninvasive, clinical measurement tool for assessing motor speed in these patients.

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