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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Cross-correlation of heartbeat and respiration rhythms

Full text
Author(s):
Contreras, P. ; Migliaro, E. R. ; Capurro Stanham, Alberto [3] ; Malta, Coraci Pereira [4]
Total Authors: 4
Document type: Journal article
Source: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS; v. 356, n. 1, p. 37-42, Oct. 2005.
Field of knowledge: Physical Sciences and Mathematics - Physics
Abstract

The cross-correlation function between respiration and heart beat interval series shows that during metronomized breathing1 the heart beat follows the respiration more closely than during spontaneous breathing. We reproduced the heart beat interval modulations during metronomized breathing using a biophysical model of the sinoatrial node excited by an input signal formed by the recorded respiration. In the case of spontaneous breathing, a good agreement with the experimental data was obtained only by using an input signal formed by the sum of the recorded respiration and a realization of correlated noise. (AU)

FAPESP's process: 00/14357-8 - Application of information theory techniques to the analysis of time series obtained from biological systems
Grantee:Alberto Capurro Stanham
Support type: Scholarships in Brazil - Post-Doctorate