Fig. 1.
APs obtained from experimental recordings (red; n = 12), simulations using the models found to be within experimental range (blue; n = 213), and all models considered (black; n = 10,000) at 0.2-, 1-, and 2-Hz pacing frequencies. Plots extend to 400 ms for 2 and 1 Hz and to 800 ms for 0.2 Hz. Each experimental trace shows a representative AP from experiments on isolated female rabbit Purkinje fibers.
