Figure 11

A. Sampling of the separatrix between the basins of attraction of the SD and the sLC for three different orientations. Curves tangent to the separatrix were computed for different fixed values of one the model state variables. Red: \(m_{\text{Kdr}}=0.3\), green: \(h_{\text{NaV}}=0.06\), Blue: \(m_{\text{Kdr}}=0\), magenta: \(h_{\text{NaV}}=0\). Black curve: uLC. Gray box: flat surface patch tangent to the separatrix; light and dark grays, respectively, indicates inside and outside of the separatrix surface. B. The model converges to its SD state from a state point of the phase space located inside the phase space volume bounded by the separatrix. C. Convergence of the model to the sLC from initial conditions located outside of this volume. All data depicted in the figure were computed with \(I_{\text{DC}} = 0\)