Description of typical components of the ERP when solving the task of distinguishing short intervals of time

Context and relevance. This article is one of a series of works published as part of a major research project devoted to the study of the procedural characteristics of learning. Methods and materials. Based on the Signal Detection Theory and the “Yes-No” task method with EEG recording was previously developed and tested to study the dynamics of the processes of acquisition/improvement of a skill of distinguishing short intervals of time. The objective of the study was to identify and describe typical components of event-related potentials (ERPs) during the presentation of the estimated signal in leads F-, C-, P-, and O- for the analysis of the brain support of learning process in different groups experiment: acquired, not acquired, improved, and not improved the skill. The sample consisted of 17 people (5 men, 12 women, 18—45 years old, med — 19). Results. A task-specific configuration of ERP components was identified, occurring in all leads in all study participants. Conclusions. Reliable and stable differences in the amplitude and latent period values of individual some components between leads F-, C- and P-, O- were obtained for the entire sample. No significant differences were found in the amplitude-time characteristics of the components extracted from participants from different groups.