Movie of Figure 5b

Electrotonic effects in rabbit ventricles using Model 2b (see text). Electrotonic effects arising from the fast-repolarizing action potential of the model suppress alternans and prevent breakup of an initiated spiral wave, despite slope greater than one for the APD restitution curve. Transmembrane potential is colored according to the colorbar, with units in mV. Views are posterior, cutaway, left, and right.