Fig. 3.

Mean (±SEM) RTs for the 3 animals. Mean RTs to probes presented in a region of space that was unoccupied by a stimulus within the array (Blank), that was occupied by a T that the animal had not yet fixated (Potential target), that was occupied by a T that the animal had already fixated within the trial (Visited T) and by a distractor (Dist). One-way ANOVAs were significant for all 3 monkeys (p≪0.001) and a post-hoc Tukey’s HSD tests were used to show differences between mean RTs within individual animals. The diamonds indicate the mean RTs when the probe was presented in a region of space occupied by a visited distractor. Only 68 and 146 trials contribute to these points for monkeys D and H respectively. The mean from the 12 trials collected from monkey E is not shown.