title: [Effect of environmental cyclicity on appearance of human brain functional asymmetry].
abstract: The indices of the brain functional asymmetry of 4373 persons, born in 1920-1984 were studied in connection with parameters of the environment during the periods of birth and conception. The trustworthy valuable seasonal and long-term variations of the brain functional asymmetry indices were discovered. Their correlation with the cosmo-physical fluctuations is maximum for the 10-year cycle of the oriental calendar elements and the month of conception. The leading factors of the environment are: the parameters of the interplanetary magnetic field; the long-period part's potential of the high-tide forming strength of the Moon and the Sun G; geomagnetic perturbation Kp; the joined location of the planets in relation of the Moon, the Earth and the Sun. The results trace the distinctly marked sexual dimorphism. The variability of the brain functional asymmetry appears to be the display of the human individuality diversity in time and is attended by the changes in the dominating type of the universe cognition in the society-logical, intuitive, sensual, combined. The long-term and century-old cycles of social development seem to be the consequence of this phenomenon.
authors.forename: O D
authors.initials: OD
authors.lastname: Volchek
mesh_terms: D001921:Brain / Q000502:physiology*; D004574:Electromagnetic Fields; D007839:Functional Laterality; D006801:Humans; D010507:Periodicity; D012621:Seasons; D012727:Sex Characteristics
vernacular_title: Vliianie tsiklichnosti sredy na proiavleniia funktsional'noĭ asimmetrii mozga u cheloveka.