<p>(A): Distribution of λ<sub>f</sub> at 0.9 s after arrhythmia induction for the ventricular model with V<sub>SAC</sub> of −10 mV; g<sub>SAC</sub> = 0.07 mS/µF. (B): Scroll wave breakup in the region of large stretch (indicated by arrow). (C), (D) and (E) are plots of I<sub>SAC</sub>, I<sub>Na</sub> and V<sub>m,</sub> respectively from the node indicated by the arrow in (B). The arrow denotes in (C): the large inward I<sub>SAC</sub> during repolarization, in (D): inactivation of Na channels, (E): conduction block.</p
