Publications on Sleep and Circadian Rhythms

Book Chapters: 

Peer-Reviewed Articles and Conference Proceedings: 

34. Plamen Ch. Ivanov and Ronny P. Bartsch Future of Sleep Medicine: Novel Insights on Sleep Regulation from Network Physiology (Part II) [PDF]
Sleep Medicine Clinics, 2024; 20: 149–164 

33. Plamen Ch. Ivanov and Ronny P. Bartsch Future of Sleep Medicine Novel Approaches and Measures Derived from Physiologic Systems Dynamics (Part I) [PDF]
Sleep Medicine Clinics, 2024; 20: 107–120 

32. Huo C, Lombardi F, Blanco-Centurion C, Shiromani PJ, and Ivanoc PCh. Role of the Locus Coeruleus Arousal Promoting Neurons in Maintaining Brain Criticality across the Sleep-Wake Cycle [PDF]
Journal of Neuroscience, 2024; 44(35): e1939232024.  

31. Rizzo R, Wang JWJL, Hohler AD, Holsapple JW, Vaou OE,  and Ivanov PCh. Dynamic networks of cortico-muscular interactions in sleep and neurodegenerative disorders. [PDF]
Frontiers in Network Physiology, 2023; 3: 1168677. 

30. Rizzo R, Garcia-Retortillo S, and Ivanov PCh. Dynamic networks of physiologic interactions of brain waves and rhythms in muscle activity. [PDF]
Human Movement Science, 2022; 84: 102971.  

29. Rizzo R, Zhang X, Wang JWJL, Lombardi F, and Ivanov PCh.  Network Physiology of Cortico–Muscular Interactions [PDF]
Frontiers in Physiology. 2020; 11: 558070. 

28. Lin A, Liu KKL, Bartsch RP, and Ivanov PCh.  Dynamic network interactions among distinct brain rhythms as a hallmark of physiologic state and function. [PDF] (Supporting Information [PDF])
Communications Biology, 2020; 3: 197.  

27. Lombardi F, Wang JWJL, Zhang X, and Ivanov PCh. Power-law correlations and coupling of active and quiet states underlie a class of complex systems with self-organization at criticality. [PDF]
EPJ Web of Conferences, 2020; 230: 00005. 

26. Lombardi F, Gómez-Extremera M, Bernaola-Galván P, Vetrivelan R, Saper CB, Scammell TE, and Ivanov PCh. Critical dynamics and coupling in bursts of cortical rhythms indicate non-homeostatic mechanism for sleep-stage transitions and dual role of VLPO neurons in both sleep and wake. [PDF]
Journal of Neuroscience, 2020; 40(1): 171-190. 

25. Wang JWJL, Lombardi F, Zhang X, Anaclet C, and Ivanov PCh. Non-equilibrium critical dynamics of bursts in θ and δ rhythms as fundamental characteristic of sleep and wake micro-architecture. [PDF] (Supporting Information [PDF])
PLOS Computational Biology, 2019; 15(11): e1007268. 

24. dos Santos Lima GZ, Lobao-Soares B, Corso G, Belchior H, Lopes SR, de Lima Prado T, Nascimento G, de França AC, Fontenele-Araújo J, and Ivanov PCh. Hippocampal and cortical communication around micro-arousals in slow-wave sleep. [PDF]
Scientific Reports, 2019; 9: 5876   

23. Dvir H, Elbaz I, Havlin S, Appelbaum L, Ivanov PCh, and Bartsch RP. Neuronal noise as an origin of sleep arousals and its role in sudden infant death syndrome. [PDF] (Supporting Information [PDF])
Science Advances, 2018; 4: eaar6277 

22. Lo C-C, Bartsch RP, Ivanov PCh. Asymmetry and basic pathways in sleep-stage transitions. [PDF]
Europhysics Letters (EPL) 2013; 102(1): 10008 

21. Ivanov PCh, Bartsch RP, Bashan A, Kantelhardt JW, Havlin S. Physiologic networks: topological and functional transitions across sleep stages.
Sleep 2012; 35 Supplement S: A52-A53 

20. Ivanov PCh, Lo C-C, and Bartsch RP. Scale-invariant pattern in arousals during sleep.
Proceedings of Biosignal: Advanced Technologies in Intensive Care and Sleep Medicine Berlin, Germany, 2010; p. 17-20  

19. Bartsch RP, Schumann AY, Kantelhardt JW, Havlin S, and Ivanov PCh. Sleep stage and age dependence of cardio-respiratory coupling in healthy subjects.
Proceedings of the 24th Annual Meeting of the Associated Professional Sleep Societies (APSS) 2010.  Sleep 2010; 33 Supplement S: A16-A16. 

18. Penzel T, Schumann AY, Bartsch RP, Ivanov PCh, Kantelhardt JW. Altersabhängigkeit der Herzfrequenzschwankungen in den verschiedenen Schlafstadien bei gesunden Probanden.
Pneumologie 2010: 64(10), A25 

17. Schumann AY, Bartsch RP, Penzel T, Ivanov PCh, Kantelhardt JW. Aging effects on cardiac and respiratory dynamics in healthy subjects across sleep stages. [PDF]
Sleep 2010; 33(7): 943-955. 

16. Bartsch RP, Schumann AY, Kantelhardt JW, Havlin S, Ivanov PCh. Sleep stage and age dependence of cardio-respiratory coupling in healthy subjects.(17).
Sleep 2010; 33: A16-A16 0036 Suppl. S 

15. Penzel T, Schumann AY, Bartsch RP, Ivanov PCh, Kantelhardt JW. Aging effects in cardio respiratory variability in different sleep stages.
Sleep 2010; 33: A109-A109 0314 Suppl. S  

14. Schmitt DT, Stein PK, Ivanov PCh.  Stratification pattern of static and scale-invariant dynamics measures of heartbeat fluctuations across sleep stages in young and elderly. [PDF]
IEEE Transactions on Biomedical Engineering 2009; 56(5): 1564-1573  

13. Ivanov PCh, Hu K, Hilton MF, Shea SA, Stanley HE. Endogenous circadian rhythm in human motor activity uncoupled from circadian influences on cardiac dynamics. [PDF]
Proc. Natl. Acad. Sci. 2007; 104(52): 20702-20707. 

12. Ivanov PCh. Scale-invariant aspects of cardiac dynamics - Observing sleep stages and circadian phases.  [PDF]
IEEE Engineering in Medicine and Biology Magazine 2007; 26(6): 33-37.  

11. Ivanov PCh, Lo C-C.  Quantification of sleep fragmentation through the analysis of sleep-stage transitions.
Sleep 2007; 30: A212-A212 629 Suppl. S.  

10. Schmitt DT, Ivanov PCh Scaling and nonlinear properties of heartbeat fluctuations across sleep stages.
Sleep 2007; 30:A117-A117 342 Suppl. S.  

9. Hu K, Scheer FAJL, Ivanov PCh, Buijs RM, Shea SA. The suprachiasmatic nucleus functions beyond circadian rhythm generation. [PDF]
Neuroscience 2007; 149(3):508-517.  

8. Schmitt DT, Ivanov PCh. Fractal scale-invariant and nonlinear properties of cardiac dynamics remain stable with advanced age: a new mechanistic picture of cardiac control in healthy elderly. [PDF]
American Journal of Physiology: Regulatory, Integrative and Comparative Physiology 2007; 293(5): R1923-R1937.  

7. Hu K, Hilton MF, Ayers RT, Ivanov PCh, Shea SA. An endogenous circadian rhythm in an index of cardiac vulnerability confirmed with a constant routine protocol.
Sleep 2006; 29: A68-A68 202 Suppl. S.  

6. Hu K, Scheer F, Ivanov PCh, Buijs RM, Shea SA. Intrinsic scale-invariant patterns of locomotor activity: Influence of the circadian pacemaker across a wide range of time scales-Spanning 4-24 hours.
Sleep 2006; 29: A64-A64 190 Suppl. S. 

5. Penzel T, Lo C-C, Ivanov PCh, Kesper K, Becker HF, Vogelmeier C. Analysis of sleep fragmentation and sleep structure in patients with sleep apnea and normal volunteers. [PDF]
2005 27TH Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005; 1-7: 2591-2594  

4. Lo C-C, Chou T, Penzel T, Scammell T, Strecker RE, Stanley HE, and Ivanov PCh. Common scale-invariant patterns of sleep-wake transitions across mammalian species. [PDF]
Proc. Natl. Acad. Sci. 2004; 101(52): 17545-17548. 

3. Kantelhardt JW, Havlin S, Ivanov PCh. Modeling transient correlations in heartbeat dynamics during sleep. [PDF]
Europhysics Letters 2003; 62(2): 147-153. 

Kantelhardt JW, Ashkenazy Y, Ivanov PCh, Bunde A, Havlin S, Penzel T, Peter J-H, Stanley HE. Characterization of sleep stages by correlations in the magnitude and sign of heartbeat increments. [PDF]
Physical Review E 2002; 65(5): 051908(6).  

2. Lo C-C, Amaral LAN, Havlin S, Ivanov PCh, Penzel T Peter J-H, Stanley HE. Dynamics of sleep-wake transitions during sleep. [PDF]
Europhysics Letters 2002; 57(5): 625-631. 

1. Ivanov PCh, Bunde A, Amaral LAN, Havlin S, Fritsch-Yelle J, R.M. Baevsky, Stanley HE, Goldberger AL.  Sleep-wake differences in scaling behavior of the human heartbeat: analysis of terrestrial and long-term space flight data. [PDF]
Europhysics Letters 1999; 48: 594-600.