Figure 2
Speed judgments of the peak velocity of body, tactile or combined motion plotted as a function of the ratio of the visual speed to swing’s speed. Data are shown for each participant with a best-fit sigmoid fitted to the means for body motion only (A), tactile flow only (B), and both (C). Sigmoids were fit to each participant’s data and the mean increase in the points of subjective equality (PSE) at which the visual movement matched the experienced motion (D) and standard deviations (E) are plotted with standard errors and compared to the predictions of the optimum integration model (yellow bars). Horizontal lines with asterisks indicate statistically significant differences. * p < 0.05, **p < 0.01, ***p < 0.001.
