Fig. 1: Image dependence of perceptual saccadic suppression.

a Human subjects generated saccades across a texture (here: coarse) from one of four diagonal locations towards display center (here: from the lower right). A luminance pedestal was flashed peri-saccadically at one of four locations around display center (right, left, up, or down; here: up). The insets in c, d show fine textures for comparison; also see Supplementary Fig. 1 and Methods. b, c Subjects failed to localize peri-saccadic flashes with both coarse (b) and fine (c) textures (perceptual reports were binned as a function of flash time from saccade onset using 50-ms bins moving in steps of 5 ms). d Perceptual suppression started earlier and lasted longer with a coarse background (also see Fig. 2). The highlighted times denote significantly different (p < 0.001, two-tailed random permutation test) time clusters between coarse and fine conditions (Methods). Curves show averages ± s.e.m. of individual subjects’ suppression curves (N = 8). Supplementary Figs. 2, 3 show individual subject results, as well as controls for flash visibility (in the absence of saccades) and saccade motor variability.