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Figure 8. Bifurcation curves and the three-root solution space for the hippocampal neuron model.Istim− diagrams at  = 40 µm/s. The thick continuous line defines the region associated with three-root solutions of Equation 17. The thin continuous line is the Andronov-Hopf bifurcation curve and the hatched line, defining the oscillation limit, is the double limit cycle bifurcation curve. (A) An overall perspective. (B) A detailed view of the cusp of the three-root solution space to describe the two subregions, defined by the stability of the stationary potentials. The Bogdanov-Takens bifurcation point is marked. Image published in: Zeberg H et al. (2010) Zeberg et al. Creative Commons Attribution license Larger Image Printer Friendly View

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