We study the phase-synchronization properties of systolic and diastolic arterial pressure in healthy subjects. We find that delays in the oscillatory components of the time series depend on the frequency bands that are considered, in particular we find a change of sign in the phase shift going from the very low frequency band to the high frequency band. This behavior should reflect a collective behavior of a system of nonlinear interacting elementary oscillators. We prove that some models describing such systems, e.g., the Winfree and the Kuramoto models, offer a clue to this phenomenon. For these theoretical models there is a linear relationship between phase shifts and the difference of natural frequencies of oscillators and a change of sign in the phase shift naturally emerges.

Phase shifts of synchronized oscillators and the systolic-diastolic blood pressure relation / Angelini, L.; Lattanzi, G.; Maestri, R.; Marinazzo, D.; Nardulli, G.; Nitti, L.; Pellicoro, M.; Pinna, G. D.; Stramaglia, S.. - In: PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS. - ISSN 1539-3755. - 69:6.1(2004), pp. 61923.1-61923.6. [10.1103/PhysRevE.69.061923]

Phase shifts of synchronized oscillators and the systolic-diastolic blood pressure relation

Lattanzi, G.;
2004-01-01

Abstract

We study the phase-synchronization properties of systolic and diastolic arterial pressure in healthy subjects. We find that delays in the oscillatory components of the time series depend on the frequency bands that are considered, in particular we find a change of sign in the phase shift going from the very low frequency band to the high frequency band. This behavior should reflect a collective behavior of a system of nonlinear interacting elementary oscillators. We prove that some models describing such systems, e.g., the Winfree and the Kuramoto models, offer a clue to this phenomenon. For these theoretical models there is a linear relationship between phase shifts and the difference of natural frequencies of oscillators and a change of sign in the phase shift naturally emerges.
2004
6.1
Angelini, L.; Lattanzi, G.; Maestri, R.; Marinazzo, D.; Nardulli, G.; Nitti, L.; Pellicoro, M.; Pinna, G. D.; Stramaglia, S.
Phase shifts of synchronized oscillators and the systolic-diastolic blood pressure relation / Angelini, L.; Lattanzi, G.; Maestri, R.; Marinazzo, D.; Nardulli, G.; Nitti, L.; Pellicoro, M.; Pinna, G. D.; Stramaglia, S.. - In: PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS. - ISSN 1539-3755. - 69:6.1(2004), pp. 61923.1-61923.6. [10.1103/PhysRevE.69.061923]
File in questo prodotto:
File Dimensione Formato  
2004_AngeliniEtAl.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 263.14 kB
Formato Adobe PDF
263.14 kB Adobe PDF   Visualizza/Apri
0402100.pdf

accesso aperto

Tipologia: Pre-print non referato (Non-refereed preprint)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 210.56 kB
Formato Adobe PDF
210.56 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/197751
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 13
  • ???jsp.display-item.citation.isi??? 13
social impact