Fig. 11
One-parameter bifurcation diagram of the Hodgkin–Huxley model (32) showing the \(L_{2}\)-norm versus I. The black curve is the branch of equilibria and colored curves are branches of periodic orbits; the curves are solid when stable and dashed when unstable. Panel (b) is an enlargement near HB1 that shows more branches of periodic orbits; stability is not shown here. Panel (c) is a further enlargement that shows the stability and the MMO signatures of the branches of periodic orbits