Fig. 8.

Experiment 5 stimuli. A fixation cross hair was positioned in the centre of the display. A low-contrast target was presented either to the left or right of fixation (here the right). High contrast inducing checkerboard patterns were positioned either above or below fixation (here above), with one inducer abutting the target. Both the target and inducing waveforms contained movement drifting in the same direction at the same rate. Inducing motion could be toward the target position (left, leading edge conditions) or away (right, trailing edge conditions).