Abstract: The EEG and the symptoms of 150 neurasthenics were studied, and the EEG of the patients were compared with those of 30 normal subjects. The results indicated: 1) the EEG of patients were different from those of normal subjects in regard to the basic rhythms, amplitudes and the reactions to sound and light stimuli; 2) EEG of the 150 neurasthenics may be classified into 5 groups according to the characteristics of basic rhythms; 3) there seems to be some relationship between the EEG and the symptoms of the patients.

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