The purpose was to test parameters of visual evoked potentials (VEPs) and of event-related potentials (ERPs) in deaf subjects to verify visual and cognitive CNS functions in a handicapped group of the population. Three types of visual stimuli (with dominating parvocellular or magnocellular system activation or with cognitive tasks) were used in the study. Six deaf persons (4 women, 2 men, mean age 17 years) and 6 persons with normal hearing (sex- and age-matched) were included in this pilot study. In all types of stimulation, latencies and amplitudes of main VEPs and ERPs components were evaluated. No significant latency differences were found. However, significantly reduced amplitudes were found in the occipital area for responses to motion and cognitive stimuli which might be interpreted as a part of functional reorganization of the extrastriate and cognitive cortical areas of deaf subjects.
- MeSH
- hluchota vrozené patofyziologie rehabilitace MeSH
- kognice MeSH
- lidé MeSH
- mladiství MeSH
- rozpoznávání obrazu MeSH
- týlní lalok patofyziologie MeSH
- znaková řeč * MeSH
- zraková percepce klasifikace MeSH
- zrakové evokované potenciály * MeSH
- Check Tag
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Hallgren syndrome is a hereditary disease with autosomal recessive inheritance. Its exact genetic background has not been elucidated so far. From the clinical aspect is comprises association of retinitis pigmentosa, atrophy of the optic nerve, nystagmus and congenital hearing damage combined with neurological and psychiatric symptoms. The authors describe two siblings with the clinical picture of this syndrome. It is a finding not published so far in the Czech literature.
- MeSH
- dítě MeSH
- hluchota vrozené MeSH
- lidé MeSH
- nemoci zrakového nervu * MeSH
- patologický nystagmus * MeSH
- předškolní dítě MeSH
- retinopathia pigmentosa * MeSH
- syndrom MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- mužské pohlaví MeSH
- předškolní dítě MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
- kazuistiky MeSH
The author analyzes factors which may play a part in the aetiology of severe congenital bilateral perception deafness--practically complete deafness--in children. The group of patients comprises 177 deaf children, 135 siblings with normal hearing and 70 deaf parents and other relatives. Pathological factors during pregnancy were detected in 20, perinatal and neonatal pathology in 32 instances. If the anamnestically detected risk factors in the aetiology of the hearing deficit played a part, theoretically by their elimination a considerable proportion of the congenital hearing affections in children could be prevented. The author emphasizes the necessity of collaboration with a geneticist in the prevention of inborn hereditary deafness.
- MeSH
- dějiny 20. století MeSH
- dítě MeSH
- hluchota vrozené etiologie dějiny MeSH
- lidé MeSH
- meningitida komplikace MeSH
- retrospektivní studie MeSH
- školní zdravotnické služby MeSH
- Check Tag
- dějiny 20. století MeSH
- dítě MeSH
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- historické články MeSH
- Geografické názvy
- Československo MeSH
- MeSH
- dítě MeSH
- elektrokardiografie MeSH
- hluchota vrozené diagnóza MeSH
- lidé MeSH
- nemoci srdce diagnóza MeSH
- poruchy sluchu diagnóza MeSH
- syndrom MeSH
- synkopa diagnóza MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- mužské pohlaví MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
- kazuistiky MeSH
- MeSH
- dospělí MeSH
- epidermální cysta * komplikace patologie MeSH
- hluchota vrozené MeSH
- lidé MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mužské pohlaví MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
- kazuistiky MeSH
