[Use of methods of pattern recognition to analyze the EEG of patients with different forms of epilepsy]

The electrophysiological aspects of the pathogenesis of Kozhevnikov's epilepsy associated with tick-borne encephalitis were investigated. The study involved computerization of 114 scalp EEGs obtained from patients with this form of epilepsy who were observed in the Primorye Territory. In order to receive control data, the analogous methods were used in processing EEGs of healthy age-matched subjects and also of patients with petit mal epilepsy and with Jackson's epilepsy. The computerized analysis was carried out by means of the image recognition method. The results of this study revealed distinctive features in the nature of the spectrograms of the test subjects and showed that apart from the dependence of the power spectra on the severity of the clinical manifestations of the disease, there are some elements of homogeneity between the spectrograms of patients suffering from Kozhewnikov's epilepsy and petit mal epilepsy. This similarity appears to suggest the sommon level of the localization of the pathological impulsation foci in the patients of both groups, with objective findings supporting this assumption.