Figure 1From: Differential effects of stimulus strength and volitional control in bistable perceptionA Model schematic: u1 and u2 are competing populations with inputs I1, I2 and adaptation variables a1, a2. Volitional bias Iv with strength K is active when u2 active (controlled by a threshold function S). B Durations for u1 active (T1) and for u2 active (T2) are plotted varying the input ratio R=I1/I2 without bias (K=0). C As B but varying the u1 bias strength with input ratio R fixed at R=1.Back to article page