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Illustration of the trial duration conditions of Experiment 3. The instantaneous optic flow field at the end of the trial (horizontal dashed line) in each condition was the same, despite the varying trial duration (150-, 500-, and 1,500-ms durations are shown). The object approached the locomotor path at a 15° path angle, and trajectories were horizontally shifted by 1 of 5 displacements (see text for details).
