目的：评价事件相关电位P 300作为血管性痴呆患者认知功能障碍客观指征的临床价值。
AIM: To evaluate the clinical value of event related potential P300 as assessment of cognitive function disorder in the patients with vascular dementia (VD).
此外，学习和记忆功能障碍还是诸多脑部疾病和全身性疾病的一种症状，认知功能障碍严重者可出现痴呆。
In addition, learning and memory deficit is a symptom of many encephalopathy and general diseases, the patients with serious cognition deficit occur dementia.
结论：血管性痴呆患者P 300峰潜伏时的延长反映与认知功能相关脑区的病理改变，客观反映认知功能障碍程度。
CONCLUSION: the prolongation of P300 peak latency reflects the pathological changes of brain areas associated with cognitive function and the degree of cognitive function disorder in VD patients.
目的：轻度认知功能障碍(MCI)因为其高度的AD危险性已成痴呆研究领域的的热点课题，研究MCI有助于识别痴呆高危个体并对探索有效干预途径有重要作用。
Objective: the research of Mild Cognitive Impairment (MCI) is the hot issue for its high risk for AD, redounding to identify the high risk individual and to find out the methods of prevention.
结论认知功能减退的患者出现波动性认知功能障碍、反复的视幻觉和帕金森样运动障碍应高度怀疑路易体痴呆。
Conclusion: Fluctuating cognitive impairment patient with recurrent visual hallucinations and spontaneous motor features of Parkinsonism shall be high suspected to be dementia with Lewy bodies.
阿尔茨海默病是一种以渐进性的认知功能障碍为主要特征的神经退行性疾病，该病最终会导致死亡，是痴呆病中最常见的一种类型。
Alzheimer disease (AD), the most common cause of dementia in the elderly, is a progressive neurodegenerative disorder that gradually robs the patient of cognitive function and eventually causes death.
目的：探讨非痴呆型血管性认知功能障碍(VCIND)患者的神经心理学特点，观察石杉碱甲对认知功能损害的改善作用。
Aim: to investigate the characteristics of the patients with vascular cognitive impairment no dementia (VCIND) in terms of neuropsychology and to observe the efficacy of huperzine a in treating VCIND.
VD是由一系列脑血管因素导致脑组织损害引起的痴呆综合征，多伴有持续性和多发性认知功能障碍。
VD is a kind of chronic brain syndrome induced by brain damage due to a series of agents related to cerebral vessels, mostly being accompanied with lasting and frequent cognition dysfunction.
目的：轻度认知功能障碍因为其高度的AD危险性已成痴呆研究领域的的热点课题，研究MCI有助于识别痴呆高危个体并对探索有效干预途径有重要作用。
Objective: The research of Mild Cognitive Impairment is the hot issue for its high risk for AD, redounding to identify the high risk individual and to find out the methods of prevention.
目的：轻度认知功能障碍因为其高度的AD危险性已成痴呆研究领域的的热点课题，研究MCI有助于识别痴呆高危个体并对探索有效干预途径有重要作用。
Objective: The research of Mild Cognitive Impairment is the hot issue for its high risk for AD, redounding to identify the high risk individual and to find out the methods of prevention.
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