Abnormal frequency locking and the function of the cardiac pacemaker

M. Gutman, I. Aviram, A. Rabinovitch

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


A heterogeneous reaction-diffusion medium consisting of two adjoining uniform regions is analyzed. The first region is a purely oscillatory one, while the second is bistable (oscillatory/excitable). We show that such a construction allows an abnormal domination of the low natural frequency of the oscillatory regime over the whole medium (abnormal frequency locking). Bifurcations leading to the appearance of the bistable regime are discussed as well as the specific dynamics of the bistable oscillations. The abnormal frequency-locking phenomenon could explain some dynamical properties of the cardiac pacemaker.

Original languageEnglish GB
Article number037202
Pages (from-to)1-4
Number of pages4
JournalPhysical Review E
Issue number3
StatePublished - 1 Sep 2004

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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