Figure 6.

Experiment 2: Using the perceived eye-to-target distance (d_eye) as a function of angular declination for comparison among the three different measures from Experiments 1 and 2. First, we transformed the gestured target size (s_g) from Experiment 2 to d_eye (filled square). Second, we calculated d_eye based on the judged target location from Experiment 2 using the formula, d²_eye =d²_w+(H-h_g)², where d_w and h_g are the walked horizontal distance and gestured height, respectively, and H is the eye height (open square). The d_eye data from the perceptual size matching judgments of Experiment 1 are represented by filled circles. Overall, the perceived d_eye increases as the angular declination decreases. The perceived d_eye based on s_g from the blind walk-gesture size task (filled squares) appears longer than those based on the judged location from the blind walk-gesture height task (open square) and the perceptual matching task s_m (filled circles).