Abstract
Wave pattern selection between periodic spirals and periodic circular pacemaker waves in excitable media is investigated with numerical simulations in a FitzHugh-Nagumo reaction-diffusion model. When spirals have oscillatory tails circular waves are more likely dominant over spirals, whereas it is opposite when spirals have monotonic tails. In both cases a coherent state is achieved in an asymptotic limit with a single period and a velocity. The observed wave pattern selection mechanism seems to underlie the competition between spirals and circular waves observed in signaling activity of Dictyostelium discoideum amoebae population.
Original language | English |
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Pages (from-to) | 2907-2910 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 79 |
Issue number | 15 |
DOIs | |
Publication status | Published - 1997 |
ASJC Scopus subject areas
- General Physics and Astronomy