Alexander Loskutov, Sergei Rybalko and Ekaterina Zhuchkova
Physics Faculty, Moscow State University, Leninskie gory, 119992 Moscow, Russia
A model of the heart tissue as a conductive system with two interacting pacemakers and a refractory time, is proposed. In the parametric space of the model the phase locking areas are investigated in detail. Obtained results allow us to predict the behaviour of excitable systems with two pacemakers depending on the type and intensity of their interaction and the initial phase. Comparison of the described phenomena with intrinsic pathologies of cardiac rhythms ispresented.