Figure 1.

Overview of the task and representative results. A, Subject was instructed to follow a jumping black dot with their eyes. A variable time after the dot jumped horizontally, a vertical bar was flashed for one frame. The bar was presented in one of three possible locations. Subjects were either asked to indicate on which background color they had perceived the bar or to indicate the location of the bar by touching that location. B, The number of flashes for which a representative subject named the correct (green) or incorrect (red) background color for flashes at −2.4°, as a function of the time of the flash (relative to saccade onset). Gray shading indicates the average saccade duration. C, The indicated location of the bar for the same subject as in B. The curved lines are averages based on a moving Gaussian window (σ = 7 ms). Black line, Orientation on a representative trial; dotted lines, the three flash positions; dashed lines, location of the start of and target for the saccade.