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

<p><strong>Context and relevance.</strong> 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. <strong>Methods and materials.</strong> 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 <strong>objective</strong> 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, <em>not</em> acquired, improved, and <em>not</em> improved the skill. The sample consisted of 17 people (5 men, 12 women, 18—45 years old, med — 19). <strong>Results.</strong> A task-specific configuration of ERP components was identified, occurring in all leads in all study participants. <strong>Conclusions. </strong>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.</p>