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目的:分析健康老年人脑电图(EEG)和脑电地形图(BEAM)变化规律及特点。方法:对825例健康老年人根据不同年龄分三组,进行EEG、BEAM描记分析。结果:健康老年人EEG主要变化是α节律减慢,θ、δ活动增多,过度换气出现完全或不完全性改变,此变化与年龄相关。脑电地形图主要特点是δ、θ频带能量值增高,且与年龄相关,80岁以上者变化更明显。结论:EEG、BEAM对辅助评价老年人的健康状态,具有重要意义。
Objective: To analyze the regularity and characteristics of electroencephalogram (EEG) and electroencephalogram (BEAM) in healthy elderly. Methods: 825 healthy elderly people were divided into three groups according to different ages and analyzed by EEG and BEAM. Results: The main changes of EEG in healthy elderly were the slowing of α rhythm, the increase of θ and δ activities and the complete or incomplete change of hyperventilation. The change was related to age. EEG topographic map is characterized by δ, θ band energy value increased, and with age, more than 80 years of age more obvious changes. Conclusion: EEG and BEAM are of great significance in assisting the evaluation of the health of the elderly.