{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,26]],"date-time":"2026-04-26T02:08:08Z","timestamp":1777169288285,"version":"3.51.4"},"reference-count":41,"publisher":"AIP Publishing","issue":"8","funder":[{"name":"the State task of the Ministry of Health of the RF","award":["056-03-2024-071"],"award-info":[{"award-number":["056-03-2024-071"]}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,8,1]]},"abstract":"<jats:p>This paper presents the results of a study of the characteristics of phase synchronization between electrocardiography(ECG) and electroencephalography (EEG) signals during night sleep. Polysomnographic recordings of eight generally healthy subjects and eight patients with obstructive sleep apnea syndrome were selected as experimental data. A feature of this study was the introduction of an instantaneous phase for EEG and ECG signals using a continuous wavelet transform at the heart rate frequency using the concept of time scale synchronization, which eliminated the emergence of asynchronous areas of behavior associated with the \u201cleaving\u201d of the fundamental frequency of the cardiovascular system. Instantaneous phase differences were examined for various pairs of EEG and ECG signals during night sleep, and it was shown that in all cases the phase difference exhibited intermittency. Laminar areas of behavior are intervals of phase synchronization, i.e., phase capture. Turbulent intervals are phase jumps of 2\u03c0. Statistical studies of the observed intermittent behavior were carried out, namely, distributions of the duration of laminar sections of behavior were estimated. For all pairs of channels, the duration of laminar phases obeyed an exponential law. Based on the analysis of the movement of the phase trajectory on a rotating plane at the moment of detection of the turbulent phase, it was established that in this case the eyelet intermittency was observed. There was no connection between the statistical characteristics of laminar phase distributions for intermittent behavior and the characteristics of night breathing disorders (apnea syndrome). It was found that changes in statistical characteristics in the phase synchronization of EEG and ECG signals were correlated with blood pressure at the time of signal recording in the subjects, which is an interesting effect that requires further research.<\/jats:p>","DOI":"10.1063\/5.0227179","type":"journal-article","created":{"date-parts":[[2024,8,23]],"date-time":"2024-08-23T14:50:25Z","timestamp":1724424625000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":4,"title":["Wavelet analysis of intermittent dynamics in nocturnal electrocardiography and electroencephalography data"],"prefix":"10.1063","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8620-1609","authenticated-orcid":false,"given":"M.","family":"Zhuravlev","sequence":"first","affiliation":[{"name":"Institute of Physics, Saratov State University 1 , 410012 Saratov, Russia"},{"name":"Saratov State Medical University 2 , 410005 Saratov, Russia"},{"name":"National Medical Research Center for Therapy and Preventive Medicine 3 , 101990 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8581-1077","authenticated-orcid":false,"given":"E.","family":"Egorov","sequence":"additional","affiliation":[{"name":"Institute of Physics, Saratov State University 1 , 410012 Saratov, Russia"},{"name":"Saratov State Medical University 2 , 410005 Saratov, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5727-5169","authenticated-orcid":false,"given":"O.","family":"Moskalenko","sequence":"additional","affiliation":[{"name":"Institute of Physics, Saratov State University 1 , 410012 Saratov, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-5924-5443","authenticated-orcid":false,"given":"Yu.","family":"Zhuravleva","sequence":"additional","affiliation":[{"name":"Saratov State Medical University 2 , 410005 Saratov, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5935-2655","authenticated-orcid":false,"given":"N.","family":"Akimova","sequence":"additional","affiliation":[{"name":"Saratov State Medical University 2 , 410005 Saratov, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3967-3950","authenticated-orcid":false,"given":"A.","family":"Kiselev","sequence":"additional","affiliation":[{"name":"National Medical Research Center for Therapy and Preventive Medicine 3 , 101990 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4453-8430","authenticated-orcid":false,"given":"O.","family":"Drapkina","sequence":"additional","affiliation":[{"name":"National Medical Research Center for Therapy and Preventive Medicine 3 , 101990 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2102-164X","authenticated-orcid":false,"given":"A.","family":"Runnova","sequence":"additional","affiliation":[{"name":"Saratov State Medical University 2 , 410005 Saratov, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"317","published-online":{"date-parts":[[2024,8,23]]},"reference":[{"key":"2024082314385205100_c1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1016\/S0370-1573(02)00137-0","article-title":"The synchronization of chaotic systems","volume":"366","year":"2002","journal-title":"Phys. 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