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System analysis of neurophysiological parameters of human during the goal directed attention – the studying instructions of follow-up activities

Keywords:

E. P. Murtazina – Ph.D. (Med.), Leading Research Scientist, P.K. Anokhin’s Institute of Normal Physiology (Moscow). E-mail: e.murtazina@nphys.ru
B. V. Zhuravlev – Dr.Sc. (Med.), Professor, Head of laboratory, P.K. Anokhin’s Institute of Normal Physiology (Moscow). E-mail: b.zhuravlerb@nphys.ru


Analysis of the processes of studying instructions follow-up in terms is relevant for research system processes of learning and memory, and is also important for such as psychophysiology of focused attention, understanding the meaning of the information provided and the formation of social motivation in human activities. On the basis of social motivation, information about the situational and triggers signals, the memories of possible means for achieving results formed the follow-up programs and acceptor of the results. The purpose of the investigation was a system analysis of neurophysiological indicators goal directional attention during the human reading the instruction to perform follow-up test. The study revealed that the process of studying the instruction causes emotional stress, which manifests itself in an increase in heart rate, reducing variability and the increase in low frequency spectral power, as sympathetic components of heart rate regulation. It was shown that increase in spectral power of theta or beta EEG rhythms taken place in frontal and visual areas of the cerebral cortex of subjects, respectively. It is found that the changes of coherent in their relations with other regions of the cortex were opposed: the coherence from the visual areas intensified, and from the frontal – weakened. These characteristic neurophysiological changes correlated with indicators of follow-up visual-motor test execution: learning rate, efficiency and tactics, resistance to mismatching after error.
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