本文报告了189例老年人的脑电图。他们的年龄均在60岁以上,平均为76.3岁。在生前均作过脑电图描记,大部份在描记后1—3年内死亡。验尸检发现有明显的脑动脉硬化者132例,无脑动脉硬化者57例,研究的对象以正常老年人和神经系统正常的其他疾病患者为主。(共计109例)作者对脑动脉硬化和脑电图的关系进行了分析和讨论,其结果如下: 1:在正常者和神经系统无异常的其他疾病患者中发现在有无脑动脉硬化的两组中其异常脑电图的出现率没有差异。硬化组α波的平均周波数为9.65±1.43c/s;而非硬化组为9.8±1.35c/s。而优势的α波的周波数在硬化组比非硬化组为小。 2.弥漫性α波型(即在单极导联中全部导联的单节律性α波几乎达100％)的出现率在硬化组和非 This article reports the EEGs of 189 elderly people. Their ages are over 60 years old, with an average of 76.3 years old. EEG made during his lifetime were described, most of the 1-3 years after the death of the mark. The autopsy found that there were 132 cases of cerebral arteriosclerosis and 57 cases of cerebral arteriosclerosis. The subjects were mainly normal elderly and other patients with normal nervous system. (A total of 109 cases) the author of the relationship between cerebral arteriosclerosis and electroencephalography were analyzed and discussed the results are as follows: 1: in normal subjects and other patients with no abnormalities in the nervous system were found in the presence or absence of cerebral arteriosclerosis There was no difference in the incidence of abnormal EEG in the group. The mean frequency of α wave in the sclerosis group was 9.65 ± 1.43c / s, while in the non-sclerosis group, it was 9.8 ± 1.35c / s. The dominant frequency of the alpha wave is smaller in the hardened group than in the non-hardened group. 2. The prevalence of diffuse alpha-wave patterns (ie, almost 100% of all rhythmic alpha-waves in the lead in a unipolar lead)