https://doi.org/10.1140/epjs/s11734-023-01050-w
Regular Article
Mathematical models of the electrocardiogram and photoplethysmogram signals to test methods for detection of synchronization between physiological oscillatory processes
1
Institute of Physics, Saratov State University, 410028, Saratov, Russia
2
Saratov Branch of Kotelnikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences, 410019, Saratov, Russia
3
Institute of Cardiology, Saratov State Medical University, 410012, Saratov, Russia
Received:
5
October
2023
Accepted:
21
November
2023
Published online:
2
January
2024
We proposed mathematical models for the electrocardiogram and photoplethysmogram signals with functionality to preset the pattern of synchronization between the phases of the low-frequency oscillations, which are related to the sympathetic neuronal control of circulation. The simulated phase difference reproduced the statistical and spectral characteristics of the experimental data, including the alternating horizontal and sloped sections, corresponding to the intervals of synchronous and asynchronous behavior. Using the proposed model, we tested and tuned an algorithm for detection of the phase synchronization between the parts of the sympathetic control of circulation, improving both sensitivity and specificity of the algorithm.
A. V. Kurbako, A. M. Vahlaeva, M. D. Prokhorov, V. I. Gridnev, B. P. Bezruchko, and A. S. Karavaev have contributed equally to this work.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
