Milder suppression in upper visual field SC neurons in peri-saccadic times. The figure shows the time course of normalized visual neural responses in the SC for low spatial frequencies (Materials and Methods). Upper visual field neurons (yellow) experienced milder saccadic suppression, and were therefore more sensitive, than lower visual field neurons (blue). Such an effect was temporally locked to the saccades, as in Figure 1B,C. Thus, coupled with overall higher visual sensitivity in upper visual field SC neurons, these results suggest that during peri-saccadic intervals, the anisotropy between upper and lower visual field SC sensitivity is even larger than in the absence of eye movements (asterisks indicate p < 0.01, error bars denote 95% CI).