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抑郁症认知功能损伤及异常脑机制研究进展
Cognitive dysfunction and brain mechanisms in major depression disorder

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刘佳丽 1,2   王亮 1,2,3 *  
文摘 认知损伤不仅是抑郁症患者的重要症状,也阻碍着抑郁症状的消除和疾病的整体康复,因此,探讨抑郁症认知缺陷及异常脑机制对了解抑郁症的病因、诊断和治疗意义重大.本文从执行功能、注意、记忆、反应速度等维度讨论抑郁症认知功能缺陷,并阐述其背后的异常宏观脑活动和微观分子标记.未来研究我们建议借助心理认知任务定量评估抑郁症认知功能,同时采集患者多模态脑影像和神经生理数据,通过多维数据计算建模分析,探寻抑郁症潜在生物标记,进而对抑郁症进行生物亚型分类,为深入理解抑郁症发病机理和个体化诊疗提供科学依据.
其他语种文摘 The prevalence of major depressed disorder increased rapidly in recent year all over the world and has become a heavy burden of society. So research on depression has become a hot topic. A great amount of studies found that patients with major depression disorder had impaired cognition. Cognitive dysfunction, the important symptom of depression, has been regarded as not only an indicator of illness, but also an obstacle to the elimination of depressive mood and the overall recovery of the disease. Exploring cognitive dysfunction and the potential brain mechanism meant significantly to understanding the etiology of major depression disorder, which could benefit the prevention, diagnosis, treatment of this mental disease. Therefore, the current research aimed to discuss cognitive dysfunction, the potential brain mechanism of the impaired dysfunction as well as the molecular factors behind major depression disorder, try to threw light on the abnormal macro-brain activity and micro-molecular marker of major depression disorder. The literatures showed that patients with major depression disorder had abnormalities in executive function, attention, memory and reaction speed. Deficit in executive function was mainly related to abnormality in prefrontal lobe and the connected subcutaneous nuclei; attention deficits had connection with abnormality in the frontal network connection, occipital lobe and cingulate gyrus; and memory defects are corresponded to abnormality in the hippocampus, cingulate gyrus, and medial temporal cortex. In addition, the abnormal neurotransmitters or brain-derived neuronal factors, and long-term stress state may also be the cause of depressive symptoms and abnormal cognitive levels. At present, the study of brain structure is relatively rough, mainly focusing on the changes in a big brain area, such as the hippocampus, prefrontal cortex, etc. In the future, high-resolution magnetic resonance imaging technology are needed to study more refined brain structures, such as CA1-3, entorhinal cortex to provide biological targets for neuromodulation treatment of various non-pharmacological interventions. Future studies also need to balance as much as possible irrelevant variables such as disease progression, severity of depression, gender, and neuropsychological tests. Besides, the causal link between neuroimaging and molecular biomarkers and depression remains unclear and longitudinal studies should be taken into consideration. As for clinical studies, we suggested to improve the traditional criteria of mental illness classification by combining the biological abnormality found by research evidence. Specifically, future studies of major depression disorder can consider cognitive dysfunctions assessed by psychological cognitive tasks; multimodal brain image and neurophysiological data to construct multidimensional computational modeling, in order to systematically explore potential biomarkers of depression, further identify the subtypes of depression. New classification criteria would provide full understanding of the pathogenesis as well as individual diagnosis and treatment of major depression disorder.
来源 科学通报 ,2018,63(20):1973-1983 【核心库】
DOI 10.1360/N972018-00129
关键词 抑郁症 ; 认知缺陷 ; 脑机制 ; 前额叶 ; 海马
地址

1. 中国科学院心理研究所, 中国科学院心理健康重点实验室, 北京, 100101  

2. 中国科学院大学心理学系, 北京, 100049  

3. 中国科学院脑科学与智能技术卓越创新中心, 中国科学院脑科学与智能技术卓越创新中心, 上海, 200031

语种 中文
文献类型 综述型
ISSN 0023-074X
学科 神经病学与精神病学
基金 国家重点研发计划 ;  北京市科委项目 ;  中国科学院心理研究所自主项目
文献收藏号 CSCD:6332366

参考文献 共 89 共5页

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引证文献 3 篇

1 傅小兰 研究抑郁,破除在人心深处肆虐的雾霾 科学通报,2018,63(20):1971-1972
被引 0 次

2 王立琴 细叶远志皂甙对抑郁小鼠精神行为影响 中国公共卫生,2020,36(4):570-573
被引 1 次

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