title: [Effects of sex hormones on systemic reactions of the brain in women of different age].
abstract: Comparative analysis of electroencephalograms (EEG) and brain reactions to single and rhythmic photostimulation in 40 girls aged 9 to 17 with ovarian aplasia or hypofunction, 39 women of a reproductive age with ovarian exhaustion, and in 305 experimental animals aged 2 to 60 days with changed levels of estrogenic hormones showed that such changes influenced the formation of cerebral response starting from the age of 14-15 in humans and from days 15-20 in animals. The general trend of the electrical activity of the brain in hormonal deficiency manifested in all the groups by changed function of the activating brain structures. An increase of estrogen level at the age of 14-15 (in girls) and 20-30 days (in animals) caused the appearance of convulsive activity on the background EEG and an increase of rhythmic discharges of afteraction in the evoked potential. A definitive pattern of systemic reactions of the brain to changes in estrogen level was observed in girls aged 16-17 and in experimental animals aged 46-60 days.
authors.forename: N M
authors.initials: NM
authors.lastname: Tkachenko
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000818:Animals; D001921:Brain / Q000502:physiology* / Q000503:physiopathology; D002648:Child; D004569:Electroencephalography; D004967:Estrogens / Q000172:deficiency / Q000502:physiology*; D005260:Female; D006801:Humans; D010049:Ovarian Diseases / Q000503:physiopathology; D010053:Ovary / Q000503:physiopathology; D011817:Rabbits
chemical_list: D004967:Estrogens
vernacular_title: Vliianie polovykh gormonov na sistemnye reaktsii mozga v razlichnye vozrastnye periody zhizni zhenshchin.