Figure 2.

Fano factors are reduced during the target-mapping task and show a steady decrease from the surround toward the saccade target. A–C, The values for the control fixation task were subtracted from that for the delayed saccade task with targets at different locations. A, C, In contrast, mean spike count shows a change from enhancement to suppression with increasing target–RF distance (A), and a similar pattern is visible for the variance of spike counts (C). D, The Fano factor increases with measurement window width but still shows the same pattern with target–RF distance: the plot for the 100 ms bin width is identical to that in B. A–C, Error bars are SEMs. Fewer than five neurons had data for target–RF distances beyond 50° (data not shown). Each point averages data from the bordering 5°. Δ represents change.