Orientation enhancement in early visual processing can explain time course of brightness contrast and White's illusion

摘要: Dynamics of orientation tuning in V1 indicates that computational model should not only comprise bank static spatially oriented filters but also include the contribution for dynamical response facilitation or suppression along orientation. Time evolution can emerge due to time- dependent excitation and lateral inhibition domain. Lateral domain suggests Ernst Mach's proposition be applied enhancement initial distribution is generated interaction visual stimulus with subcortical temporal filter. Oriented spatial filtering appears much early ( $$<$$ 70 ms) sequence information processing account many brightness illusions observed at steady state. It therefore expected time might reflecting percept over time. Our numerical study spatio-temporal phase explain experimentally dynamics contrast illusion. But, key mechanism guide system predict by "Max-rule" "Winner Takes All" (WTA) estimation thus producing White's any exposure.