痴呆是由脑功能障碍引起的症状,应用测定脑功能方法之一的脑电图检查应能发现。但目前尚未发现痴呆的特异性脑电图波形。而且痴呆的病因多种多样,也未发现所有痴呆共同的脑电图表现。一、由老化引起的脑电图改变健康老年人的脑电图虽与壮年人的脑电图基本相同,但可见下述几种特征。但是,体检正常,而且一般临床检查也未发现异常的健康老年人(60岁以上)中有30%可见异常脑电图。这可能表示健康老年人的某些潜在性脑障碍的 Dementia is a symptom caused by brain dysfunction, and EEG examination, one of the methods of measuring brain function, should be found. However, no specific EEG waveform has been found for dementia. And dementia causes a variety of, nor found all dementia common EEG performance. First, the change caused by the aging of the EEG Although the EEG of healthy adults is basically the same with adults, but the following characteristics can be seen. However, normal physical examination, and general clinical examination did not find abnormal healthy elderly (60 years of age or more), 30% of abnormal EEG can be seen. This may indicate some of the potential brain disorders in healthy older adults