Coupled oscillators approach to identification of directionality in cardiorespiratory interaction

L. Cimponeriu, M. Rosenblum, A. Patzak, R. Mrowka, A. Bezerianos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A recently proposed method [1] aimed to identify directionality of interaction in weakly coupled oscillator systems is presented, tested on simulated data and applied to the problem of experimental detection of directionality of cardio respiratory interaction in healthy newborns. The results reveal that the direction of coupling between cardiovascular system and respiratory system varies with age within the first six months of life. We find a tendency to change from nearly symmetric bi-directional interaction to nearly unidirectional one (from respiration to the heart rate). Stronger cardio respiratory interaction appears to be mainly related to the driving effect of respiration on the heart rate. Moreover, the dependency of the directionality index on the respiratory frequency indicates the possible existence of distinct regimes of interaction.

Original languageEnglish (US)
Title of host publication2002 14th International Conference on Digital Signal Processing Proceedings, DSP 2002
EditorsA.N. Skodras, A.G. Constantinides
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1141-1144
Number of pages4
ISBN (Electronic)0780375033
DOIs
StatePublished - 2002
Externally publishedYes
Event14th International Conference on Digital Signal Processing, DSP 2002 - Santorini, Hellas, Greece
Duration: Jul 1 2002Jul 3 2002

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2

Other

Other14th International Conference on Digital Signal Processing, DSP 2002
Country/TerritoryGreece
CitySantorini, Hellas
Period7/1/027/3/02

ASJC Scopus subject areas

  • Signal Processing

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