Spatiotemporal Chaos in a Simulated Ring of Cardiac Cells
- 17 February 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 78 (7), 1387-1390
- https://doi.org/10.1103/physrevlett.78.1387
Abstract
We recently presented evidence that cardiac fibrillation is a form of spatiotemporal chaos arising via a quasiperiodic transition. To investigate the origin of this quasiperiodicity, we studied reentrant excitation in a ring of cardiac cells. We modified the Beeler-Reuter model, changing the action potential duration (APD) restitution so that it agreed qualitatively with experimental studies. We found that chaos could occur by reentrant excitation, in a transition from quasiperiodicity to spatiotemporal chaos. This occurred only when the APD restitution curve was nonmonotonic.This publication has 20 references indexed in Scilit:
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