[Clinico-electrophysiological characteristics of women--heterozygote carriers of fragile X chromosome].

Overall 21 women, heterozygous carriers of fragile X-chromosome (7 cases of obligate carriership and 14 sporadic cases) were examined by electroencephalography and cytogenetically. In none of them the clinical examination revealed a typical somatic appearance characteristic of Martin-Bell syndrome. Certain somatic disorders, psychasthenic traits, tearfulness and uncommunicativeness were recorded in single cases.

[A correlational analysis of the EEG rhythms and functional hemispheric asymmetry in children with the hyperdynamic syndrome].

Thirty-three mentally normal children aged 4.5 to 11 years with hyperdynamia were examined for their EEG. In the profile of functional asymmetry (PFA) detected by the leading hand and eye, a considerable portion, as compared to normals, was made up of ambidextrous children with no left-handers.

[Clinico-electrophysiological examination of children with Martin-Bell syndrome].

Based on somatic, psychopathological and electroencephalographic examination of 26 boys aged 3-11.5 years with Martin-Bell syndrome it was found that the disease is characterized by noticeable polymorphism. Three types of the encephalograms and 3 clinical types of diseased children were distinguished.

[Electrophysiological study of children with various hereditary forms of mental retardation].

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.

[Features of the convulsive activity in the EEG of patients with classic phenylketonuria].

The problem of the genetic burden inherited by the human race represents one of the research priorities of modern medicine, with hereditary diseases of the nervous system, particularly oligophrenia, being a significant part of it. The author examined the EEGs of patients suffering from "classic" phenylketonuria, a hereditary defect of metabolism, and found a) constant presence of intensive convulsive activity in all regions; b) presence of involuntary motor activity; c) changes in the principal rhythms of the EEGs; d) monotonous pattern of responses in the form of delta-waves of a generalized nature or in the form of epileptiform activity of the "slow spike wave" type; e) presence of the most profound EEG changes in the frontal regions.