Figure 9From: M-current induced Bogdanov–Takens bifurcation and switching of neuron excitability class\(\mathrm{F}/\mathrm{I}\) curves of Stiefel model (27) corresponding to Fig. 8. (a) \(g_{M}< g_{M}^{*}\) (the value at the BT point); (b) \(g_{M}^{*}< g_{M}<\widehat{g}_{M}\); (c) \(g_{M}>\widehat{g}_{M}\) (the value at the CP point)Back to article page