Fig. 12. The sum of the vertical and horizontal expansions (VExp+HExp; see Appendix) is similar prior to saccades in both the textured and the uniform background. The sum of the average vertical and horizontal expansions (from Fig. 11) is shown for both the textured (red) and the uniform (blue) backgrounds. Mean ± standard deviations are shown by the solid and dashed lines, respectively. The total expansion signals correspond well for the textured and the uniform backgrounds despite the differences in velocities and distance from the walls in the two conditions. The data were collected over the same set of saccades as Figs 10 and 11. The y-axis has the same scaling as in Figs 10 and 11.
