本文应用神经心理测查、脑电活动与ＣＴ／ＭＲＩ影像变化对比研究１３例Ａｌｚｈｅｉｍｅｒ痴呆和１２例多发性梗塞性痴呆病人之间的差异，发现Ａｉｚｈｅｉｍｅｒ痴呆的神经心理障碍较全面，多发性梗塞性痴呆为非全面性障碍。在脑电地形图上二者的θ频段两半球的对称系数不同、两组痴呆在ＣＴ／ＭＲＩ影像变化显示两半球脑萎缩的对称性有差异，并对其差异的产生机制及相互关系作了初步探讨。以上的变化可以为临床提供鉴别诊断的依据。 In this paper, the differences between 13 Alzheimer’s dementia patients and 12 patients with multi-infarct dementia were studied by neuropsychological test, EEG activity and CT / MRI imaging. The neuropsychological disorders of Aizheimer dementia were found to be more comprehensive and multiple infarct Dementia is a non-comprehensive disorder. The Symmetry coefficients of the two hemispheres in the EEG are different between the EEG topographs. The changes of CT / MRI images of the two groups of dementia show that there is a difference in the symmetry between the two hemispheres in brain atrophy, and their differences in the mechanism and their relationship Preliminary discussion. The above changes can provide the basis for the differential diagnosis of clinical.