Figure 1:

(a) An example of MT variance vs. ID Regression using quadratic variance model (Equation 2), evaluated on the steering task data collected in our user study. (b) and (c): one example of predicting MT distribution selected from the red circle in (a). The blue curve in (b) represents the observed probability density function (PDF) of MT under a particular (A, W) condition, and the green curve is the predicted PDF using the quadratic variance model (Equation 2) in a Gamma distribution. The blue curve in (c) represents the observed cumulative distribution function (CDF), and the green curve is the predicted CDF.