Fig. 7.
Small or intermediate RG-induced PVCs. A: space-time plot of voltage shown in a PVC (*) generated due to RG via the second mechanism (location “2” in Fig. 4B). GCa,L = 292 mmol/(cm,C) and GKs2 = 0.71 mS/μF. B: space-time plot of dV/dt > 0 for the voltage shown in A. C: same as A, but the change of GKs1 to GKs2 occurred across 50 cells. D: same as A, but the cells in the long APD region were voltage clamped at their values at t = 1,160 ms. E: space-time plot of voltage showing a PVC (*) at the boundary (“3” in Fig. 4B ). GCa,L = 211 mmol/(cm,C) and GKs2 = 0.71 mS/μF. F: space-time plot of voltage showing a PVC (*) when RG is small (“4” in Fig. 4B). GCa,L = 196.75 mmol/(cm,C) and GKs2 = 0.97 mS/μF.