Figure 2.

Data from a single representative participant (code QAD) for auditory (“A,” panel A), visual (“V,” panel B), and auditory/visual (“A+V,” panel C) conditions plotted on logarithmic axes. Dots show raw distance judgments (y): 10 replications/distance. Open circles indicate geometric means (y) for each target distance. Data from each condition were fit with a power function (ŷ; solid line) of the form ŷ_r = kΦ^a_r (ŷ_r = perceived distance, k = constant, a = power-law exponent, Φ_r = target source distance). Fit parameters and the proportion of variability accounted for by the fit (R²) are shown in each panel. Perfectly accurate performance is indicated by the dotted line in each panel.