Mechanism of standing wave patterns in cardiac muscle

Mechanism of standing wave patterns in cardiac muscle

Recent experiments [R. A. Gray, Phys. Rev. Lett. 87, 168104 (2001)]] have revealed striking standing wave patterns in cardiac muscle. In excitable media, such as cardiac tissue where colliding waves annihilate, standing wave patterns result from a fully nonlinear mechanism. We present a possible phy...

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Veröffentlicht in:Physical review letters 2003-03, Vol.90 (12), p.124101-124101, Article 124101
Hauptverfasser: Takagi, Seiji, Pumir, Alain, Kramer, Lorenz, Krinsky, Valentin
Format: Artikel
Sprache:eng
Schlagworte:
Adaptation and Self-Organizing Systems
Cardiology and cardiovascular system
Chaotic Dynamics
Computer Simulation
Heart - physiology
Human health and pathology
Life Sciences
Membrane Potentials - physiology
Models, Biological
Muscle Fibers, Skeletal - physiology
Nonlinear Sciences
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Zusammenfassung:Recent experiments [R. A. Gray, Phys. Rev. Lett. 87, 168104 (2001)]] have revealed striking standing wave patterns in cardiac muscle. In excitable media, such as cardiac tissue where colliding waves annihilate, standing wave patterns result from a fully nonlinear mechanism. We present a possible physical mechanism explaining these patterns. The phenomenon does not depend on the precise excitable model chosen. Analogies are drawn with weak links in superconductors, and phase-slip solutions in the Ginzburg-Landau equations.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.90.124101