Propagation of Excitation Waves and Their Mutual Interactions in the Surface Layer of the Ball with Fast Accessory Paths and the Pacemaker

Abstract

Propagation of excitation waves and their mutual interactions on the surface layer of a ball with fast accessory paths and pacemaker is studied by the cellular automaton (CA) computer simulation technique in three—dimensions. The existence of the conducting system created by fast accessory paths and the pacemaker in the excitable medium — i.e., in the medium having a morphology — is important for this study. The topology of the medium and the CA—model itself are kept quite simple in order to focus the main attention of this study into the spatio-temporal response of the excitable medium with respect to the position and size of excitatory disturbances and inclusions. Propagation of undistorted excitation waves in the homogeneous excitable medium and appearance of spirals in it — induced by initial excitatory disturbances — are studied as well.