Fig. 7.

Effects of background scene “naturalness.” A: average responses in the Flash-on-Gray (gray), Flash-on-Pic (blue), Sac-on-Pic (green), and Simulated-Saccade conditions (red). Traces of the same color show responses in the same condition with natural and “unnatural” background images. Multiple unnatural images, such as those in Fig. 2, gave responses indistinguishable from responses to the natural images they were derived from. B: orientation selectivity of the cells shown in A. No systematic changes were observed as a function of the “naturalness” of the background scene.