Putting Illusions in their Place

  title={Putting Illusions in their Place},
  author={RICHARD L. Gregory},
  pages={1 - 4}
  • R. Gregory
  • Published 1 February 1991
  • Education
  • Perception
Putting illusions in their place We see the Natural Sciences describing, explaining, and classifying phenomena. These do not follow any clear historical sequence, for each affects and may transform the others. So whales become mammals; lightning becomes electricity; the heart becomes a pump; the brain becomes (some kind of) a computer, as explanations change appearances and force changes of classification. Much the same should apply to the Unnatural Science of illustory phenomena, which are… 
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Patient and Informant Views on Visual Hallucinations in Parkinson Disease.
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    The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry
  • 2015


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The inappropriate constancy scaling theory of visual distortion illusions is tested by optically projecting typical models giving these figures by perspective and the prediction that when perspective and stereo are geometrically correct the distortion should vanish is confirmed.
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The nature of light : an historical survey
A 1,1989 The Optics oflbn Al-Haytham 2 volumes (London: The Warburg Institute
  • Tolansky S,
  • 1964