Fig. 6

Coexistence of Chaotic EADs and Normal Periodic AP Dynamics. A Zoom into the PD cascade area of Fig. 4b, but now also depicting a solid red line at V≈−82.7 mV that represents the minimum voltage values of stable limit cycles corresponding to normal periodic AP behaviour. B Display of the normal periodic AP orbit obtained with the same parameter setting as for the chaotic EAD dynamics of Fig. 1PV but with the different initial condition Eq. (12)