Predicting the duration of chaotic transients in excitable media

Abstract The spatiotemporal dynamics of excitable media may exhibit chaotic transients. We investigate this transient chaos in the 2D Fenton–Karma model describing the propagation of electrical excitation waves in cardiac tissue and compute the average duration of chaotic transients in dependence on...

Full description

Saved in:
Bibliographic Details
Published inJournal of physic, complexity Vol. 2; no. 3; pp. 35016 - 35025
Main Authors Aron, Marcel, Lilienkamp, Thomas, Luther, Stefan, Parlitz, Ulrich
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.09.2021
Subjects
cardiac arrhythmias
excitable gap
excitable media
phase singularities
restitution curve
spatiotemporal chaos
transient chaos
Online AccessGet full text

Cover

More Information
Summary:Abstract The spatiotemporal dynamics of excitable media may exhibit chaotic transients. We investigate this transient chaos in the 2D Fenton–Karma model describing the propagation of electrical excitation waves in cardiac tissue and compute the average duration of chaotic transients in dependence on model parameter values. Furthermore, other characteristics like the dominant frequency, the size of the excitable gap, pseudo ECGs, the number of phase singularities and parameters characterizing the action potential duration restitution curve are determined and it is shown that these quantities can be used to predict the average transient time using polynomial regression.
Bibliography:JPCOMPX-100163.R1
ISSN:2632-072X
2632-072X
DOI:10.1088/2632-072X/abf752