[The seizure syndrome combined with sensorimotor aphasia and alalia (the Landau-Kleffner syndrome)].

Electric brain activity and clinical status were studied in children with Landau-Kleffner syndrome. The paper covers 21 cases of the disease in patients aged from 2 years 11 months to 16 years in whom speech disorders and convulsive episodes varied in onset. A characteristic EEG pattern was recorded in the majority of the examinees.

[Possibility of EEG-diagnosis of heterozygotic Martin-Bell syndrome].

A case of fragile-X syndrome (the Martin-Bell syndrome) in two male half-sibs from different marriages of their mother was described. Both patients suffered from mental retardation and had some characters of the Martin-Bell syndrome. Somatically healthy mother was characterized by IQ-101.