Соотношение сложности динамики сердечного ритма и системных характеристик поведения

Психологический журнал. 2018. Т. 39. № 5. С. 46–58.

Demidovskij A., Бахчина А. В., Александров Ю. И.

It is the important issue in system psychophysiology to describe the processes of orchestration and development of functional systems. Within the framework of the issue, heart rate variability dynamics was studied in behaviors formed at different stages of the ontogeny (earlier and later). Participants (n = 35 (5 female), age from 23 to 37 (M = 27.78; Me = 28)) had the professional education in fields of physics or mathematics. They had to perform the task of filling in gaps at sentences. There were two groups of sentences: 1) sentences consisted words, which age of acquisition was the period of learning at a university, from professional mathematicians vocabulary; 2) sentences consisted common-used words, which are used by children of pre-school and school ages. Heart rate complexity was measured with Sample Entropy. Comparison of two tasks has shown that heart rate complexity was less during the performance of the behavior formed on earlier stages of individual development (working with sentences with common-used words). In light of the system-evolutionary approach, the results can be explained through dissimilarities of sets of functional systems actualized in different behaviors. It is important to notice, system temporary dedifferentiation, which was induced by alcohol administration, decreased differences between heart rate complexities in two behaviors. It was concluded, heart rate complexity reflects system characteristics of performed behavior. 

Keywords: алкоголь, сложность, вариабельность сердечного ритма, системная дифференциация, обратимая дедифференциация