Extended Data Fig. 4: I-V curves of a FHN- inspired model.
From: Observation of topological action potentials in engineered tissues
I-V curves of cells with equal amounts of Kir and NaV and different values of h (solid lines); a ‘Kir-only’ cell (red); and ‘NaV-only’ cells with corresponding values of h (dashed blue). In this example, A = 5, gNa = gK = 1, and gap junctional currents are omitted. The upper fixed point disappears via a saddle-node bifurcation at \(h \cong 0.164\). Related to Fig. 2.
