Fig. 6.

Schematic depiction of the target visibility manipulation used in the Just in Time condition applied to target 4. (A) Target 4 becomes visible when the subject’s foot crosses the visibility trigger surrounding target 3 (blue dashed circle) and remains so until the foot crosses the invisibility trigger (red dotted circle). (B) The steps to target 3 (blue arrows) and target 4 (red arrows) shown with time progressing from left to right. The visibility of target 4 is shown on the black and red arrow, along with the trigger number associated the changing visibility.