The subject of the research is the physiological manifestations of attention and perception in the constitutional and emotional aspects.
The purpose of the research is to perform a comprehensive study of psychophysiological and behavioral correlates of attention and perception in individuals with different temperament types and structure; search for patterns of the manifestation of attention and perception in dependence on the characteristics of temperament; as well as identify electrophysiological manifestations of the emotional aspect of individual responses.
The process of the research was based on recording and measuring evoked potentials and electroencephalogram spectral power analysis during the implementation of attentional tasks upon the presentation of discrete stimuli of varying significance, as well as the use of temperament questionnaires. Five experiments were conducted.
The research made it possible to identify psychophysiological parameters related to the effectiveness of task performance and the peculiarities of temperament. For the first time in the condition of confident stimulus discrimination based on their physical parameters, it was shown that the evoked potential peak P3, corresponding to the later stages of the processes of attention and perception, is linked with a behavioral performance indicator.
For the first time, we have defined physiological signs that make it possible to distinguish between conditions of a stable and an unstable response to a significant stimulus observed in the process of attention and perception of the stimulus in a transition from preattention to attention. For the first time, we have obtained a direct confirmation of the theoretical psychophysiological notion that extraverts show a lower level of arousal in response to external stimuli, and the difference occurs at the early preattentional stage of information processing. The dynamics of attentional training, determined by the characteristics of temperament, were determined. The psychophysiological manifestations of emotions of different signs were described.
The results of this research make it possible to extend the fundamental theoretical understanding of brain mechanisms of cognitive processes, and also qualify for a future practical application in the field of psychodiagnostics and professional selection, and provide a basis for developing new methods in the area of neuromarketing.
Foreign Research Partner: Norman M. Weinberger, research professor, Center for the Neurobiology of Learning and Memory, Herklotz Research Facility, 320 Qureshey Research Laboratory, University of California - Irvine, Irvine, CA, USA.