Footprints Sticking Out of the Sand. Part 2: Children's Bayesian Priors for Shape and Lighting Direction

@article{Stone2011FootprintsSO,
  title={Footprints Sticking Out of the Sand. Part 2: Children's Bayesian Priors for Shape and Lighting Direction},
  author={James V. Stone},
  journal={Perception},
  year={2011},
  volume={40},
  pages={175 - 190}
}
The shading information in images that depict surfaces of 3-D objects cannot be perceived correctly unless the direction of the illuminating light source is known and, in the absence of this knowledge, perception in adults is consistent with a light-from-above Bayesian prior assumption. In order to investigate if children make use of a similar assumption, 171 children between the ages of 4.6 and 10.8 years were tested with 20 images containing shading information, where the shape depicted in… 

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