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  • Особенности ЭЭГ лиц женского пола в эстрогеновую и прогестероновую фазы овариально-менструального цикла

Article

Особенности ЭЭГ лиц женского пола в эстрогеновую и прогестероновую фазы овариально-менструального цикла

Чадова И. Н., Водолажская М. Г.

The dynamics of EEG indicators in the estrogen (EF) (1-14 day) and progesterone phase (PF) (15-28 day) of the ovarian-menstrual cycle (OMC) in 49 healthy women was studied. A 21-channel electroencephalic graph "Neuron-Spectrum-4/VP"was used. The greatest changes during OMC are registered for "fast" EEG rhythms. In EF using correlation analysis revealed a linear decrease in the values of power and amplitude parameters of beta-rhythm of EEG from 1 to 14 days OMC mainly in the right hemisphere. In PF, there was a linear increase in the dominant frequency of the alpha rhythm of the EEG in the anterior part of the scalp from 15 to 28 days of the cycle, which is also characteristic of the full amplitude and the index of the main rhythm of the EEG. When comparing the averaged values in the two phases of the cycle, large values of the average power of alpha and beta rhythms are set in PF compared to EEG EEG. Thus, the values of bioelectric characteristics of the brain of women decrease during the EF due to beta rhythm and rise in the PF phase of the cycle due to alpha rhythm. It is discussed the connection of this dynamics with EEG psycho-physiological characteristics of females on the generations of the UMC.