Saccade-triggered average spike histograms for position/drift activated cells (pos, n =10), mixed cells (mix, n=11), and saccade cells (sac, n=7) when saccades caused the CRF to land on the stimulus (first column), leave the stimulus (second column), or cross the stimulus without remaining on it (third column). Saccade onset occurred at t=0. For each cell, data were based on five saccades causing the CRF to land on the stimulus and five saccades causing the CRF to leave the stimulus. Because the monkeys maintained gaze within a compact region, saccades sweeping the CRF across the stimulus without remaining on it were less frequent. Four or five crossing saccades were analyzed for 15 cells, three saccades for four cells, and two saccades for nine cells. (From Snodderly et al., 2001).