title: [Effect of the informational specificity of a stimulus on human evoked potentials].
abstract: A study was made of the influence of stimuli with different informational specificity (a checkerboard pattern, the image of a house, the word "house") on respective EPs recorded in the occipital zone (OZ) and symmetrical postero-temporal areas (T5 and T6) of the cerebral cortex. Paired comparisons were carried out of distribution histograms of the maxima of negative and positive EP components. A statistical control of heterogeneity of such distributions by the Brand--Snedecker formula allowed to detect the histogram fragments, where the differences were most pronounced. All the fragments were included in the period from 0 to 250 ms. Estimation of discrimination indices testified to the influence of stimulus informational specificity on the respective EPs of the occipital and temporal areas of the left hemisphere.
mesh_terms: D000293:Adolescent; D000328:Adult; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology*; D004192:Discrimination, Psychological / Q000502:physiology; D004292:Dominance, Cerebral / Q000502:physiology; D005074:Evoked Potentials, Visual; D005260:Female; D006801:Humans; D008297:Male; D009778:Occipital Lobe / Q000502:physiology; D013702:Temporal Lobe / Q000502:physiology
vernacular_title: Vliianie informatsionnoĭ spetsifiki stimula na vyzvannye potentsialy cheloveka.