Visual guidance of walking through apertures: body-scaled information for affordances.

@article{Warren1987VisualGO,
  title={Visual guidance of walking through apertures: body-scaled information for affordances.},
  author={William H Warren and Seungjin Whang},
  journal={Journal of experimental psychology. Human perception and performance},
  year={1987},
  volume={13 3},
  pages={371-83}
}
A necessary condition for visually guided action is that an organism perceive what actions are afforded by a given environmental situation. Warren (1984) proposed that an affordance such as the climbability of a stairway is determined by the fit between properties of the environment and the organism and can be characterized by optimal points, where action is most comfortable or efficient, and critical points, where a phase transition to a new action occurs. Perceiving an affordance, then… CONTINUE READING
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