The Psi Encyclopedia is a new collection of articles and case studies about psi research, the scientific investigation of psychic phenomena. It's a work in progress, being created by the Society for Psychical Research in London. Learn more >

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Dutch psychic (1909-1980) known for demonstrations of precognitive clairvoyance (chair tests) and for finding missing persons.

American psychologist and parapsychologist (1926-2012) noted for reports of dramatic poltergeist phenomena, which he attributed to unconscious psychokinesis in emotionally disturbed young persons.

Focus of poltergeist-type phenomena at her home in Columbus, Ohio, in 1984, later jailed for life for a crime she probably did not commit.

John Palmer is an American psychologist and parapsychologist who has conducted psi research using a variety of experimental approaches. In recent years he has drawn attention to the challenge of 'experimenter effects'.

An unconvential explanation of psi based on quantum mechanics, in which psi works not on events directly but rather on the invisible underworld of quantum probabilities.