НЕЛИНЕЙНЫЙ АНАЛИЗ ЭЛЕКТРОЭНЦЕФАЛОГРАММ ПРИ ДЕЙСТВИИ ЭЛЕКТРОМАГНИТНЫХ ИЗЛУЧЕНИЙ ГЕНЕРАТОРОВ ШУМА И НАЛИЧИИ РАДИОПОГЛОЩАЮЩИХ ЭКРАНОВ

Abstract

It is proposed to study the clinical electroencephalograms, recorded for healthy volunteers and subjected to the effect of noise oscillator radiation, influenced by protection screens based on radiation absorbing materials, with the use of nonlinear dynamics methods. The clinical electroencephalograms were processed and analyzed using the specially developed information-measuring system. The performed analysis of electroencephalograms shows that the structural changes in signals are different for radiation of operated noise oscillator also with the use of protection screens between the noise oscillator and wide-band antenna. The employment of nonlinear methods considering bioelectric signals of the brain as deterministic chaos enables one to realize the construction of phase portraits and to introduce such informative parameters as the correlation dimension and Kolmogorov entropy, making it possible to determined the influence of screens protecting against the electromagnetic radiation.