Figure 3From: Attractor-state itinerancy in neural circuits with synaptic depressionFixed points and projected basins of attraction for two symmetrically coupled units (\(w_{12}=w_{21}\)). (a1)–(a4): Axes indicate the initial state of the system, with colors indicating the final state to which the system converges. Stable nodes (saddles) are labeled as filled circles (crosses) and surrounded by color-coded basins. The self-coupling is fixed at \(w_{11}=w_{22}=40\) and cross-couplings are chosen as (a1) \(w_{12}=0\), (a2) \(w_{12}=0.5\), (a3)–(a4) \(w_{12}=-1\). (a4) Zoom-in details reveal fine structures near the \((1,1 )\) state that is enclosed by a dashed square in (a3). (b) Normalized basin areas of stable attractors as a function of symmetric cross-coupling strength. Dashed vertical lines correspond to cases (a2) and (a3). (c1)–(c2): Labels are same as (a1)–(a4) except for the absence of depressionBack to article page