Categorical perception.

  title={Categorical perception.},
  author={Robert L. Goldstone and Andrew T. Hendrickson},
  journal={Wiley interdisciplinary reviews. Cognitive science},
  volume={1 1},
Categorical perception (CP) is the phenomenon by which the categories possessed by an observer influences the observers' perception. Experimentally, CP is revealed when an observer's ability to make perceptual discriminations between things is better when those things belong to different categories rather than the same category, controlling for the physical difference between the things. We consider several core questions related to CP: Is it caused by innate and/or learned categories, how… 

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