ELECTROPHYSIOLOGICAL CORRELATES OF THE SYSTEM ORGANIZATION OF THE PHYSIOLOGICAL FUNCTIONS IN PEOPLE WITH DIFFERENT EFFECTIVENESS OF PURPOSEFUL ACTIVITY
The results of study of electroencephalographic parameters, characteristics of cognitive evoked potential P300 and heart rate variability in 46 healthy people during purposeful activity are presented. The purpose of this study is to estimate the effectiveness of purposeful activity and its implementing mechanisms in healthy people. The clusters with different effectiveness of modeling purposeful activity were identified. The higher power of theta-waves of electroencephalograms in frontal leads in low-efficient group, higher frequency of alpha-waves, high level of coherency and frequency of electroencephalographic coherency in leads O1-O2, amplitude N2 component of P300 potential in high-efficient group was established. The artificial neural network for classification of test subjects in subgroups on the basis of physiological parameters was created, trained and tested. The artificial neural network was trained effectively; the larger number of errors was made during distribution to high-efficient group. The prognostic value of physiologic parameters for determination of effectiveness of purposeful activity was estimated using artificial neural network technology. The greater role of activity of nonspecific modulating brain structures and parameters of synchronous activity of cortical structures in effectiveness of behavior in patients with epilepsy are determined.