Fig. 4
From: Noise-Induced Precursors of State Transitions in the Stochastic Wilson–Cowan Model
Approach to state transition in 1-D Wilson–Cowan cortex. The cortex is placed in subthreshold mode I, close to one of four bifurcation types, then driven toward instability in two steps (II, III) using one of two control parameters or a combination of both (red arrows). The resulting dispersion curves predict the spatial or temporal frequency of upcoming instabilities, determined by value of \(q/2\pi\) at the peak of α-curve (blue) and the \(\omega/2\pi\) value (green) at the \(q=0\) axis, respectively