Spiral competition in three-component excitable media

Igor Aronson, Herbert Levine, Lev Tsimring

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Excitable wave patterns consisting of large coherent spirals are observed during the aggregation of Dictyostelium amoebae. These emerge from an initially disordered state which arises via random cell firing. In this work, we show that this phenomenon can be understood as being due to a specific spiral competition instability which occurs in certain three-component excitable medium models. This instability can be understood as symmetry breaking of a spiral pair leading to one spiral suppressing and expelling another.

Original languageEnglish (US)
Pages (from-to)1170-1173
Number of pages4
JournalPhysical Review Letters
Volume76
Issue number7
DOIs
StatePublished - Jan 1 1996

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amoeba
broken symmetry
cells

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Aronson, Igor ; Levine, Herbert ; Tsimring, Lev. / Spiral competition in three-component excitable media. In: Physical Review Letters. 1996 ; Vol. 76, No. 7. pp. 1170-1173.
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Spiral competition in three-component excitable media. / Aronson, Igor; Levine, Herbert; Tsimring, Lev.

In: Physical Review Letters, Vol. 76, No. 7, 01.01.1996, p. 1170-1173.

Research output: Contribution to journalArticle

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