title: [Interrelation of certain parameters of the human EEG].
abstract: The paper describes the results of factor analysis of interconnections between 20 EEG parameters in each of 4 leads from the central and parietal areas of both hemispheres at inter-individual variation of parameter values in 54 healthy subjects. Three of the chosen factors reveal a stable structure in all leads, and also significant differences in factor values between various areas. Marked fluctuations of factor values are found in some subjects in different moments, which presumably reflect spontaneous fluctuations of the brain functional state and open a perspective for evaluation of these states by means of factor values. An attempt has been made to interpret the physiological meaning of some factors. Factor I is presumably connected with activity of non-specific activating systems controlling the level of wakefulness and stipulating the processes of synchronization of the bioelectrical activity. Factor II is interpreted as a reflection of the processes of cortical excitation, factor III--as a reflection of active selective inhibitory processes in the cerebral cortex.
mesh_terms: D000293:Adolescent; D000328:Adult; D004569:Electroencephalography; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male
vernacular_title: O vzaimosviazannosti nekotorykh parametrov EEG cheloveka.