Borisova M. Event-related brain potentials in children and adolescents: relation to individual peculiarities of attention.

The thesis is devoted to the study of correlation between the components of the event-related brain potentials (ERP) and individual characteristics of attention in children. One of the main features of ERP of 5-7 year-old children was small amplitude of contingent negative variation (CNV) and big amplitude of N2 component. The best characteristics of attention were found in healthy children of 5-7 and 10-12 years of age who had maximum amplitudes of N1-Р2 components. As for retarded children and children with general underdevelopment of speech, they had increased RT, decreased amplitude of CNV, increased amplitude and latency of P300 in response to feedback signal. The best characteristics of attention were peculiar to adolescents who had maximum amplitudes of ERP components, such as: Р1, Р2, CNV, Р300 and minimal amplitude of N2. It was revealed the dynamics of ERP changes with age: amplitude of N1, Р2 and CNV increases but amplitude of N2 decreases with the increase of age.