Figure 4. Results of Experiment 2.

(a) Individual thresholds for four conditions. The left arrows denote the perceived vanishing positions in the motion-terminated condition; the right arrows the perceived initial positions in the motion-initiated condition; The blue arrows represent the thresholds with the blue filter and the green arrows with the green filter. The gray bars denote the motion detection threshold for the blue moving object. (b) Mean forward shifts for four conditions (±SE, n = 6). The vertical dot-dashed line represents the mean threshold of motion detection.