{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T21:31:17Z","timestamp":1786570277218,"version":"3.56.0"},"reference-count":34,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"funder":[{"DOI":"10.13039\/501100012550","name":"Nemzeti Kutat\u00e1si, Fejleszt\u00e9si \u00e9s Innovaci\u00f3s Alap","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100012550","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100016267","name":"P\u00e1zm\u00e1ny P\u00e9ter Catholic University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100016267","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003827","name":"National Research Development and Innovation Office","doi-asserted-by":"publisher","award":["TKP2021-EGA- 25"],"award-info":[{"award-number":["TKP2021-EGA- 25"]}],"id":[{"id":"10.13039\/501100003827","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003827","name":"National Research Development and Innovation Office","doi-asserted-by":"publisher","award":["TKP2021-NKTA- 47"],"award-info":[{"award-number":["TKP2021-NKTA- 47"]}],"id":[{"id":"10.13039\/501100003827","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003827","name":"National Research Development and Innovation Office","doi-asserted-by":"publisher","award":["2024-2.1.1-EK\\u00D6P-2024-0004"],"award-info":[{"award-number":["2024-2.1.1-EK\\u00D6P-2024-0004"]}],"id":[{"id":"10.13039\/501100003827","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Computers in Biology and Medicine"],"published-print":{"date-parts":[[2026,8]]},"DOI":"10.1016\/j.compbiomed.2026.111853","type":"journal-article","created":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T10:33:27Z","timestamp":1783593207000},"page":"111853","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"special_numbering":"C","title":["A broken power-law model of heart rate variability spectra in sleep"],"prefix":"10.1016","volume":"213","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6910-7258","authenticated-orcid":false,"given":"Bence","family":"Schneider","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7441-3818","authenticated-orcid":false,"given":"Martin","family":"Dresler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ferenc","family":"Gombos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ilona","family":"Kov\u00e1cs","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5341-060X","authenticated-orcid":false,"given":"R\u00f3bert","family":"B\u00f3dizs","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.compbiomed.2026.111853_bib0005","doi-asserted-by":"crossref","DOI":"10.1016\/j.crphys.2024.100123","article-title":"Autonomic brain functioning and age-related health concerns","volume":"7","author":"Alrosan","year":"2024","journal-title":"Current Research in Physiology"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0010","doi-asserted-by":"crossref","first-page":"2142","DOI":"10.1161\/01.CIR.93.12.2142","article-title":"Power law behavior of RR-interval variability in healthy middle-aged persons, patients with recent acute myocardial infarction, and patients with heart transplants","volume":"93","author":"Bigger","year":"1996","journal-title":"Circulation"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0015","doi-asserted-by":"crossref","DOI":"10.3389\/fphys.2013.00026","article-title":"The LF\/HF ratio does not accurately measure cardiac sympatho-vagal balance","volume":"4","author":"Billman","year":"2013","journal-title":"Front. Physiol."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0020","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1556\/2053.01.2017.002","article-title":"The hemispheric lateralization of sleep spindles in humans","volume":"1","author":"B\u00f3dizs","year":"2017","journal-title":"Sleep Spindles and Cortical Up States"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0025","doi-asserted-by":"crossref","first-page":"80","DOI":"10.1016\/j.apcbee.2013.08.016","article-title":"A review of heart rate variability and its applications","volume":"7","author":"ChuDuc","year":"2013","journal-title":"APCBEE Procedia"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0030","doi-asserted-by":"crossref","first-page":"631","DOI":"10.1016\/j.neuroimage.2019.01.024","article-title":"The spectral exponent of the resting EEG indexes the presence of consciousness during unresponsiveness induced by propofol, xenon, and ketamine","volume":"189","author":"Colombo","year":"2019","journal-title":"Neuroimage"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0035","doi-asserted-by":"crossref","first-page":"1655","DOI":"10.1038\/s41593-020-00744-x","article-title":"Parameterizing neural power spectra into periodic and aperiodic components","volume":"23","author":"Donoghue","year":"2020","journal-title":"Nat. Neurosci."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0040","doi-asserted-by":"crossref","first-page":"1067","DOI":"10.1093\/sleep\/22.8.1067","article-title":"Heart rate variability during waking and sleep in healthy Males and females","volume":"22","author":"Elsenbruch","year":"1999","journal-title":"Sleep"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0045","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1093\/abm\/kaaa039","article-title":"Heart rate variability, sleep quality, and depression in the context of chronic stress","volume":"55","author":"da Estrela","year":"2020","journal-title":"Ann. Behav. Med."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0050","first-page":"730","article-title":"Piecewise regression through the Akaike information criterion using mathematical programming","volume":"51","author":"Gkioulekas","year":"2018","journal-title":"IFAC-Pap."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0055","series-title":"The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specification","author":"Iber","year":"2007"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0060","doi-asserted-by":"crossref","first-page":"461","DOI":"10.1038\/20924","article-title":"Multifractality in human heartbeat dynamics","volume":"399","author":"Ivanov","year":"1999","journal-title":"Nature"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0065","author":"Jekel"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0070","doi-asserted-by":"crossref","DOI":"10.1093\/ehjci\/ehaa946.3463","article-title":"Age, sex and underlying heart rate as determinants of nocturnal heart rate variability among wearable smart ring users","volume":"41","author":"Kentta","year":"2020","journal-title":"Eur. Heart J."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0075","doi-asserted-by":"crossref","first-page":"H16","DOI":"10.1152\/ajpheart.00143.2022","article-title":"Reliability of heart rate variability during stable and disrupted polysomnographic sleep","volume":"323","author":"Kerkering","year":"2022","journal-title":"American Journal of Physiology-Heart and Circulatory Physiology"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0080","doi-asserted-by":"crossref","first-page":"456","DOI":"10.1109\/TBME.1982.324972","article-title":"1\/f fluctuation of heartbeat period","volume":"BME-29","author":"Kobayashi","year":"1982","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0085","doi-asserted-by":"crossref","first-page":"288","DOI":"10.1016\/j.neubiorev.2016.03.007","article-title":"Sex differences in healthy human heart rate variability: a meta-analysis","volume":"64","author":"Koenig","year":"2016","journal-title":"Neuroscience. Biobehavioral Reviews"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0090","doi-asserted-by":"crossref","DOI":"10.1016\/j.neuroimage.2023.120154","article-title":"Aperiodic brain activity and response to anesthesia vary in disorders of consciousness","volume":"275","author":"Maschke","year":"2023","journal-title":"Neuroimage"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0095","doi-asserted-by":"crossref","first-page":"1576","DOI":"10.1093\/cvr\/cvz112","article-title":"Complexities in cardiovascular rhythmicity: perspectives on circadian normality, ageing and disease","volume":"115","author":"Monfredi","year":"2019","journal-title":"Cardiovasc. Res."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0100","doi-asserted-by":"crossref","first-page":"54","DOI":"10.2174\/157340310790231635","article-title":"Sleep duration as a risk factor for cardiovascular disease- a review of the recent literature","volume":"6","author":"Nagai","year":"2010","journal-title":"Current Cardiology Reviews"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0105","doi-asserted-by":"crossref","DOI":"10.1016\/j.arr.2024.102521","article-title":"Heart rate variability and autonomic nervous system imbalance: potential biomarkers and detectable hallmarks of aging and inflammaging","volume":"101","author":"Olivieri","year":"2024","journal-title":"Ageing Res. Rev."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0110","doi-asserted-by":"crossref","first-page":"82","DOI":"10.1063\/1.166141","article-title":"Quantification of scaling exponents and crossover phenomena in nonstationary heartbeat time series","volume":"5","author":"Peng","year":"1995","journal-title":"Chaos Interdiscip. J. Nonlinear Sci."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0115","doi-asserted-by":"crossref","first-page":"1863","DOI":"10.1111\/j.1540-8159.1996.tb03241.x","article-title":"Changes in heart rate variability with age","volume":"19","author":"REARDON","year":"1996","journal-title":"Pacing Clin. Electrophysiol."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0120","series-title":"A Manual of Standardized Terminology, Techniques and Scoring System for Sleep Stages of Human Subjects","first-page":"4","author":"Rechtschaffen","year":"1968"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0125","first-page":"135","article-title":"The association of sleep duration and quality with heart rate variability and blood pressure","volume":"19","author":"Sajjadieh","year":"2020","journal-title":"Tanaffos"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0130","doi-asserted-by":"crossref","DOI":"10.1152\/ajpregu.1999.276.6.R1724","article-title":"Aging and spectral characteristics of the nonharmonic component of 24-h heart rate variability","volume":"276","author":"Sakata","year":"1999","journal-title":"Am. J. Physiol.-Regul. Integr. Comp. Physiol."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0135","doi-asserted-by":"crossref","DOI":"10.1038\/s41598-023-33013-5","article-title":"Effects of sleep fragmentation and partial sleep restriction on heart rate variability during night","volume":"13","author":"Schlagintweit","year":"2023","journal-title":"Sci. Rep."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0140","doi-asserted-by":"crossref","DOI":"10.3389\/fninf.2022.989262","article-title":"Scale-free and oscillatory spectral measures of sleep stages in humans","volume":"16","author":"Schneider","year":"2022","journal-title":"Front. Neuroinformatics"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0145","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/j.smrv.2011.02.005","article-title":"Heart rate variability, sleep and sleep disorders","volume":"16","author":"Stein","year":"2012","journal-title":"Sleep Med. Rev."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0150","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1016\/j.cmpb.2013.07.024","article-title":"Kubios HRV \u2013 heart rate variability analysis software","volume":"113","author":"Tarvainen","year":"2014","journal-title":"Comput. Methods Programs Biomed."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0155","doi-asserted-by":"crossref","DOI":"10.3389\/fphys.2013.00294","article-title":"Heart rate variability in normal and pathological sleep","volume":"4","author":"Tobaldini","year":"2013","journal-title":"Front. Physiol."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0160","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1038\/s41592-019-0686-2","article-title":"SciPy 1.0: fundamental algorithms for scientific computing in Python","volume":"17","author":"Virtanen","year":"2020","journal-title":"Nat. Methods"},{"key":"10.1016\/j.compbiomed.2026.111853_bib0165","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1007\/s10548-015-0448-0","article-title":"Separating fractal and oscillatory components in the power spectrum of neurophysiological signal","volume":"29","author":"Wen","year":"2015","journal-title":"Brain Topogr."},{"key":"10.1016\/j.compbiomed.2026.111853_bib0170","doi-asserted-by":"crossref","first-page":"R40","DOI":"10.1152\/ajpregu.1994.266.1.R40","article-title":"On the fractal nature of heart rate variability in humans: effects of data length and beta-adrenergic blockade","volume":"266","author":"Yamamoto","year":"1994","journal-title":"Am. J. Physiol.-Regul. Integr. Comp. Physiol."}],"container-title":["Computers in Biology and Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0010482526004178?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0010482526004178?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T21:06:17Z","timestamp":1786568777000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0010482526004178"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8]]},"references-count":34,"alternative-id":["S0010482526004178"],"URL":"https:\/\/doi.org\/10.1016\/j.compbiomed.2026.111853","relation":{},"ISSN":["0010-4825"],"issn-type":[{"value":"0010-4825","type":"print"}],"subject":[],"published":{"date-parts":[[2026,8]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"A broken power-law model of heart rate variability spectra in sleep","name":"articletitle","label":"Article Title"},{"value":"Computers in Biology and Medicine","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.compbiomed.2026.111853","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}],"article-number":"111853"}}