Figure  7: Effects of g_K1 on spiral-wave meandering patterns. (a) Tip-trajectory evolution for different g_K1 values during 500 ms (top) and 110 ms (bottom). The middle trajectory corresponds to g_K1 = 1.0 mS which is the value for the standard guinea-pig ventricle model. Action potential configurations with different g_K1 values are shown superimposed for single (b) and repetitive stimulation (c). The g_K1 values (in mS) are given in the legend (t in s, V in mV).