French medical practitioner and psi researcher (1874-1938), director of the Institut Métapsychique International in Paris, noted for an innovative investigation of the medium Rudi Schneider.

British mathematics professor and parapsychologist (1919-2003), notable for his poltergeist research and, with his wife Iris, for the landmark ‘Philip’ experiment in psychokinesis and spirit communication.

British applied psychologist and author, who has investigated paranormal phenomena from a sceptical perspective, notably in the Most Haunted television series.

German-born physician and psychical researcher (1855-1942) who lived and worked for most of his life in Mexico. He is remembered mainly for experiments and theories concerning psychometry.

Greek physicist whose research interests include laser spectroscopy, materials science, foundations of quantum theory and psychical research.

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'.

In recent decades, a significant number of people in Britain have gained doctorates in the field of parapsychology. This table lists them, along with those who are currently studying for a...

Anglo-Swedish clinical psychologist, parapsychologist and author based at Sweden's University of Gothenburg. In the 1970s he was one of  the first psi researchers to use the ganzfeld telepathy technique.

Denys Parsons (1914-1995) was an author, musician and psychical researcher who participated in psi experiments.

Indian clinical psychologist known for her research on childhood past life memories and near-death experiences.