Interactions between "light-from-above" and convexity priors in visual development.

  title={Interactions between "light-from-above" and convexity priors in visual development.},
  author={Rhiannon L. Thomas and M. Nardini and Denis Mareschal},
  journal={Journal of vision},
  volume={10 8},
Having a prior assumption about where light originates can disambiguate perceptual scenarios. Previous studies have reported that adult observers use a "light-from-above" prior as well as a convexity prior to constrain perception of shape from shading. Such priors may reflect information acquired about the visual world, where objects tend to be convex and light tends to come from above. In the current study, 4- to 12-year-olds and adults made convex/concave judgements for a shaded "polo mint… CONTINUE READING

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