[Visual evoked potentials and functional asymmetry in children with with different degrees of intellectual retardation].
Visual evoked potentials (VEP) to flash and patterned visual stimuli have been recorded from occipital and central brain regions in 7-8-year-old boys with normal intellect (20 cases), with mental retardation (15 cases) and with oligophrenia of a debile degree (27 cases). A significant elongation of late-component latency has been revealed in motor brain areas VEP in oligophrenia group compared to normal subjects. A negative correlation between P190 component latency of motor area VEP to patterned visual stimulus and general and non-verbal intellectual indices has been stated in full right-handed subjects with intellectual deficiency. Such a relation was absent in right-handed patients with left dominant eye.
Katargina
T A
TA
Kryzhanovskaia
I L
IL
Petrova
M A
MA
D002648:Child; D004292:Dominance, Cerebral; D004569:Electroencephalography; D005074:Evoked Potentials, Visual; D007839:Functional Laterality; D006801:Humans; D008607:Intellectual Disability / Q000503:physiopathology* / Q000523:psychology; D008297:Male; D010775:Photic Stimulation / Q000379:methods; D011597:Psychomotor Performance; D011599:Psychopathology; D011930:Reaction Time
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