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Effects of reduced discrete coupling on filament tension in excitable media

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  • Additional Information
    • Contributors:
      Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. BIOCOM-SC - Grup de Biologia Computacional i Sistemes Complexos
    • Publication Information:
      Institute of Physics (IOP)
    • Publication Date:
      2011
    • Collection:
      Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
    • Abstract:
      Wave propagation in the heart has a discrete nature, because it is mediated by discrete intercellular connections via gap junctions. Although effects of discreteness on wave propagation have been studied for planar traveling waves and vortexes (spiral waves) in two dimensions, its possible effects on vortexes (scroll waves) in three dimensions are not yet explored. In this article, we study the effect of discrete cell coupling on the filament dynamics in a generic model of an excitable medium. We find that reduced cell coupling decreases the line tension of scroll wave filaments and may induce negative filament tension instability in three-dimensional excitable lattices. ; Peer Reviewed ; Postprint (published version)
    • File Description:
      application/pdf
    • Relation:
      http://hdl.handle.net/2117/177816
    • Accession Number:
      10.1063/1.3551500
    • Online Access:
      http://hdl.handle.net/2117/177816
      https://doi.org/10.1063/1.3551500
    • Rights:
      Attribution-NonCommercial-NoDerivs 3.0 Spain ; http://creativecommons.org/licenses/by-nc-nd/3.0/es/ ; Open Access
    • Accession Number:
      edsbas.48827120