[Neurophysiologic mechanisms of the formation of the signal significance of words in yound children].
It has been established by means of the auto- and cross-correlation EEG analysis of children in the second year of life that different functional systems of relationships of cortical structures are formed during the word perception depending on whether it is an indifferent or signal stimulus for the child. In response to indifferent words, synphasic oscillations of the biopotentials appear in the infero-parietal and temporal, as well as in the temporal and frontal zones of the dominant hemisphere, without enhancement of the periodic processes and without appearance of a common rhythm. Signal verbal stimuli produce enhanced highly synchronous, synphasic interconnections of the infero-parietal biopotentials not only with temporal, but more considerably so with the frontal activity of the left hemisphere. This is accompanied by increased periodicity of processes between them and the appearance of a predominant rhythm 4--5 osc/sec.
D001307:Auditory Perception / Q000502:physiology*; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology*; D004292:Dominance, Cerebral; D004569:Electroencephalography; D005625:Frontal Lobe / Q000502:physiology; D006801:Humans; D007223:Infant; D007804:Language Development; D010296:Parietal Lobe / Q000502:physiology; D011578:Psycholinguistics; D013060:Speech; D013702:Temporal Lobe / Q000502:physiology
O neĭrofiziologicheskikh mekhanizmakh formirovaniia signal'nogo znachniia slov u deteĭ rannego vozrasta