Figure 6.

Effect of different types of cues on target choice in the initiation of pursuit. Each panel shows averages of horizontal eye velocity as a function of time, and the different panels show responses of our three subjects. Traces are averaged over delay periods and direction (right vs left). Colors indicate the following: black, single targets; red, 0% coherent cue; green, 50% coherent direction cue; cyan, stationary destination cue; dark blue, color cue indicating which direction to track; magenta, color cue indicating which color target to track; deep green, tone cue. Note that it is difficult to distinguish the green, cyan, blue, and deep green traces because they lie on top of each other.