Testing the Bayesian model of perceived speed

  title={Testing the Bayesian model of perceived speed},
  author={Felix H{\"u}rlimann and Daniel C. Kiper and Matteo Carandini},
  journal={Vision Research},
In a recent Bayesian model by Weiss, Simoncelli, and Adelson, motion perception is biased by a prior favoring slow speeds. This model predicts qualitatively an impressive variety of phenomena, including the dependence of perceived speed on contrast. We show that the model can also generate quantitative predictions: for a drifting grating with contrast c, perceived speed is proportional to c(q)/(k(q) + c(q)), with k, q constants. We tested this expression on measurements of perceived speed as a… CONTINUE READING