Electroencephalographic Correlates of Fluctuation of Cognitive Control Level in Auditory Condensation Task

This qualification work is dedicated to the problem of cognitive control and methods of its investigation. Most empirical tasks used to study cognitive control, such as Stroop task, or Simon task, require suppressing automayic irrelevant motor response to solve it. Thus these tasks are aimed at studying the influence of the level of conflict of motor responses at the success of the task. In this case, the main activated mechanism of cognitive control is a non-specific regulation of motor threshold. Cognitive control is not limited to this group of processes. In order to study all aspects of the phenomenon another type of task was applied to analyse little-studied aspects of cognitive control. Auditory condensation task designed for this study provides a high level of cognitive load, and does not imply any automatic irrelevant motor programme, so that its solving is not based on the suppression of such a reaction. In this case specific cognitive control mechanism including a attention plays a much greater role. In this study, we create new experimental conditions to investigate the cognitive control processes. The purpose of this work is to explore patterns of cognitive control processes by studying the evoked potential components. Statistical analysis of variance of evoked potential components average amplitudes is provided by analysis of variance with repeated measures (ANOVA).