Figure 2.

Learning from observation is not driven solely by infrequent eye movement trials. A, Schematics represent the direction change epoch in the different experimental conditions. Left, Eye movement trials with change in direction. Middle, Congruent trial-fixation trial with directional change. Right, Incongruent trial-fixation trial without directional change. B, Average learned eye velocity as a function of time from motion onset for eye movement trials averaged across all congruent (blue) and incongruent (red) blocks. C, Learned response on incongruent (vertical) versus congruent (horizontal) blocks. Filled and open symbols show data from Monkeys A and C. Solid line indicates unity. D, Schematics represent the target motion in the different experimental conditions. Left, Eye movement trials without a change in direction. Middle, Fixation trials in which rightward is the learned direction. Right, Fixation trial in which leftward is the learned direction. E, Average learned eye velocity in eye movement trials averaged across all learning blocks as a function of time from motion onset in blocks in which the moving target moved rightward (blue) or leftward (red). F, Learned response in adjacent blocks in which on fixation trials the target moved rightward (horizontal) or leftward (vertical). Filled and open symbols show data from Monkeys A and C. Solid line indicates unity. In all traces, shadowing represents the SEM. Vertical dashed line shows the time of the change in direction of the moving target.