The color phi phenomenon: Not so special, after all?
Fig 2
Backward temporal masking with a single dynamical neuron.
(A) Neuron circuit with excitatory self-feedback, Eq (3), illustrates backward temporal sensory masking. w1 = w2 = 1.5, τ = 1. (B) Positive feedback creates two stable equilibria at y* = ±1 (top trace). These form the minima of a gradient-descent function V(y) (bottom trace). (C) Depending on the interval between a priming and a countering stimulus of opposite polarity, masking can occur. (D) The effectiveness of the masking stimulus also depends on its amplitude.