Figure 8.

Uniform distribution of reversal potential is less robust than hyperpolarizing for all values of bias current, noise and coupling, and less robust than shunting for high synaptic coupling. A, Bifurcation in the full 3D parameter space for hyperpolarizing (blue), shunting (magenta) inhibition and uniform distribution (green) for reversal potential between −55 and −75 mV. B, Hopf bifurcation in the total synaptic coupling versus noise intensity for external bias current equal to 0.5 nA (full line) and 0.6 nA (dashed line) for hyperpolarizing (blue), shunting (magenta) and uniform distribution (green). For synaptic coupling higher than 250 nS (for 0.6 pA of bias current) and 300 nS (for 0.5 pA), a uniform distribution in synaptic reversal potential is less robust than shunting reversal potential.