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Application of the coupling detection to the analysis of the low-frequency rhythms in the autonomic controlof circulation

Anatoly Karavaev, Viktoria Skazkina, Yury M. Ishbulatov, Ekaterina Borovkova
Many authors emphasize the fundamental and practical importance of investigation of the low-frequency rhythm in the brain and cardiac signals that correlate with the activity of the autonomic control of circulation. However complexity, nonstationarity and high nonlinearity of the system complicate the research and require application of the specialized methods. This study aims to compare the methods of coupling detection that were adapted to the detection of coupling between the loops
of autonomic control of circulation. The analysis of the data from healthy subject demonstrated that the methods based on the analysis of phase dynamics and coherence function calculations are adequate for the investigation of coupling patterns in the autonomic control of circulation. However the results of both methods require the control of statistical significance.
CYBERNETICS AND PHYSICS, Vol. 8, No. 3. 2019, 128-131. https://doi.org/10.35470/2226-4116-2019-8-3-128-131
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