Literature DB >> 14754247

Influence of nonexcitable cells on spiral breakup in two-dimensional and three-dimensional excitable media.

K H W J ten Tusscher1, A V Panfilov.   

Abstract

We study spiral wave dynamics in the presence of nonexcitable cells in two-dimensional (2D) and three-dimensional (3D) excitable media, described by the Aliev-Panfilov model. We find that increasing the percentage of randomly distributed nonexcitable cells can prevent the breaking up of a spiral wave into a complex spatiotemporal pattern. We show that this effect is more pronounced in 2D than 3D excitable media. We explain the observed 2D vs 3D differences by a different dependence of the period and diastolic interval of the spiral wave on the percentage of nonexcitable cells in 2D and 3D excitable media.

Mesh：

Year:  2003        PMID： 14754247     DOI： 10.1103/PhysRevE.68.062902

Source DB:  PubMed          Journal:  Phys Rev E Stat Nonlin Soft Matter Phys        ISSN： 1539-3755


  15 in total

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