[Sex distribution of EEG phenomena with particular reference to subcortical dysfunctions].
The most constant or continually recurring sexual difference observed from childhood through to old age and determined from the results of a total of 1500 electroencephalograms was a considerable increase in beta activity occurring in female individuals at an earlier time and at a higher rate. The more frequent observation in male individuals of a "pure" alpha electroencephalogram may be interpreted as suggesting a slight decrease of vigilance in them. The percentage of abnormal electroencephalographic results was highest in females, the proportion being 62.5%:51.5% and the functional disorders occurring chiefly in the form of subcortical dysfunctions (30%:20%). Low voltage was found to be predominant in males. More frequent occurrence in the female sex of weakness of the brainstem and a more sensitively reacting formatio reticularis may be considered a possible explanation; also, attempts are made to bring the results obtained into causal or reciprocal relation to psychic conditions. Beta activity is perhaps a parameter of emotionality.
D000293:Adolescent; D000328:Adult; D002493:Central Nervous System Diseases / Q000175:diagnosis*; D002648:Child; D004569:Electroencephalography; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis*; D008875:Middle Aged; D012737:Sex Factors
Zur Geschlechtsverteilung von EEG-Phänomenen mit besonderer Berücksichtigung der subkortikalen Funktionsstörungen