Figure 4.

Parametric study on the disruption of the ongoing spike gamma oscillations. Correlograms for the single and superimposed components (depth-ordered plaids) are shown to the left and to the right of each panel, respectively. (A) Successive luminance increases of component 2 led to increasing attenuation of the spiking gamma oscillations. (B) Component 2 is presented in different directions of motion relative to component 1. The more orthogonal both components are, the higher the attenuation of spiking gamma oscillations. Note that very small increments of luminance (A) or relative direction difference (B) are sufficient to virtually abolish the oscillatory patterning of the responses.