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dermo-optical perception (DOP)

Dermo-optical perception (DOP) is the alleged ability to "see" without using the eyes. DOP is a conjurer's trick, often involving elaborate blindfolding rituals, but always leaving a pathway (usually down the side of the nose), which allows for unobstructed vision.

See also extraordinary human function.

further reading 

Benski, Claudio. et al. "Testing new Claims of Dermo-Optical Perception," in the Skeptical Inquirer, Jan/Feb 1998.

Christopher, Milbourne. (1975). Mediums, Mystics & the Occult. Thomas Y. Crowell Co.

Gardner, Martin. "Dermo-optical perception: A Peek Down the Nose," in Science: Good, Bad and Bogus (Buffalo, N.Y.: Prometheus Books, 1981).

Gardner, Martin. "Eyeless Vision," in Are Universes Thicker Than Blackberries (W.W. Norton & Co., 2003).

Keene, M. Lamar. The Psychic Mafia (Prometheus, 1997).

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