Alieva T. Age dynamics of EEG potentials and their relationship to the psychophysiological processes in children and adolescents

There is found that in the course of maturing from 6 to 16 years the latency of evoked and event-related potentials (ERP) P1, N1, P2 and P300 registered in go/no-go paradigm is gradually reducing while the amplitude of the N1–P2 complex and P2 potential increased. There is a correlation between the amplitude-temporal parameters of ERP and alpha- and beta-band of EEG. According to the results of the longitude study with 10–12 years children, the parameters of the P1, N1, P2, P300 and N1–P2 complex were the ones mostly related to the age. At the same time parameters of N1, N1–P2 complex and the P300 wave preserved their individual characteristics for several years. Emotional states were found to be related with the patterns of EEG and ERP. A series of EEG-feedback sessions designed to reduce anxiety resulted in decreased latency for P1, P2 and P300 potentials, increased latency for N2 potential, and reduced amplitude of P1 and P2 potentials.