Fig. 2

Experiment 1 results: Negative values on x axis refer to left offset. LPD responded “rightward of center” less often than RPD and HCat hatch-positions near the midpoint of the horizontal line. RPD and HCshowed a similar trend for all hatchmark positions. b) Vertical condition results from experiment 1. c) Perceived midpoints for horizontal line bisection. d) Perceived midpoints for vertical line bisection.