title: [Electrophysiological study of children with various hereditary forms of mental retardation].
abstract: Nine children with syndromes of Albright, Coffin-Loury, Ullrich-Noonan, C. De Lange and brachyphalangia with prenatal cerebral affection and severe mental retardation have been examined. They entered group I. Four children with syndromes of Möbius, Christ-Siemens and LEOPARD with secondary retardation of cognitive activity comprised group II. In a case of Coffin-Loury and Albright syndromes electroencephalographic picture was similar to that for Martin-Bell syndrome. In the majority of the patients general changes in the EEG presented with local ones. Correlations between intra- and interhemispheric EEG parameters deviated from those of healthy children matched for age. A drastic prevalence of the left-handers and ambidexters in a primary whereas right-handers in a secondary cerebral disorder has been recorded.
authors.forename: L M
authors.initials: LM
authors.lastname: Puchinskaia
authors.forename: N A
authors.initials: NA
authors.lastname: Lastochkina
authors.forename: G S
authors.initials: GS
authors.lastname: Marincheva
mesh_terms: D000293:Adolescent; D002540:Cerebral Cortex / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000503:physiopathology*; D004569:Electroencephalography; D007839:Functional Laterality; D006801:Humans; D008607:Intellectual Disability / Q000209:etiology / Q000235:genetics / Q000503:physiopathology*
vernacular_title: Elektrofiziologicheskoe issledovanie deteĭ s razlichnymi nasledstvenno obuslovlennymi formami umstvennoĭ otstalosti.