title: [EEG correlates of geno-phenotypical features of the brain development in children of the native and newcomers' population of the Russian North-East].
abstract: Traditional and original methods of EEG analysis were used to study the brain electrical activity maturation in 156 children and adolescents from 7 to 17 years old who represented the native (Koryaks and Evenks) and newcomers' populations living in severe climatic and geographic conditions of the Russian North-East. New data revealing age-, sex- and ethnic-related features in quantitative EEG parameters are presented. Markers are obtained that characterize alterations in the structure of interaction between different EEG rhythms. The results demonstrate age-dependent transformation of this structure separated in time for both different cortical areas and different EEG frequency bands. These alterations show time lag from 2 to 3 years in children of native population compared to the newcomers. The revealed differences are assumed to reflect geno-phenotypical features of morpho-functional CNS development in children of the native and newcomers' population that depend on strong adaptation tension for extreme environmental conditions.
authors.forename: S I
authors.initials: SI
authors.lastname: Soroko
authors.forename: S S
authors.initials: SS
authors.lastname: Bekshaev
authors.forename: V P
authors.initials: VP
authors.lastname: Rozhkov
mesh_terms: D000222:Adaptation, Physiological; D000293:Adolescent; D000367:Age Factors; D001921:Brain / Q000254:growth & development*; D001931:Brain Mapping; D002490:Central Nervous System / Q000254:growth & development*; D002648:Child; D004569:Electroencephalography / Q000379:methods*; D005260:Female; D005838:Genotype; D006801:Humans; D008297:Male; D010641:Phenotype; D044382:Population Groups; D012426:Russia