SPIRAL BREAKUP IN A MODIFIED FITZHUGH-NAGUMO MODEL

被引：126

作者：

PANFILOV, A

HOGEWEG, P

机构：

[1] Bioinformatica, University of Utrecht, 3584 CH Utrecht

来源：

PHYSICS LETTERS A | 1993年 / 176卷 / 05期

关键词：

D O I：

10.1016/0375-9601(93)90921-L

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a modified FitzHugh-Nagumo model for excitable tissue a spiral wave is found to break up into an irregular spatial pattern. The main difference between our equations and the standard FitzHugh-Nagumo model is that we use two different time constants: one for the relative refractory period and another for the absolute refractory period. Breakup occurs when the relative refractory period is short. The effect is numerically stable at least for a five-fold decrease in the space integration step.

引用

页码：295 / 299

页数：5

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