Canadian psychology professor, author, amateur magician and career psi-skeptic, fellow and member of the Executive Council for the Committee for Skeptical Inquiry (CSI, formerly CSICOP).

Researcher, author and educator (1955–2021) in the field of parapsychology, whose writings focused in particular on the history of early psychical research and spontaneous anomalous experiences.

Cleve Backster (1924–2013), a polygraph expert, carried out experiments which he claimed showed a degree of conscious awareness in plants. 

Ian Baker is a psychologist at the University of Derby who has carried out ESP research.  

Tory politician and philosopher (1848-1930) with an interest in psychical research, associated in particular with the Palm Sunday case, a notable mediumship episode.

American experimental physicist who carries out psi-research at the Institut Métapsychique International in Paris.

British physicist (1844-1925) and co-founder of the Society for Psychical Research. He wrote on telepathy and clairvoyance, apparitions, mediumship, dowsing, deathbed visions, and related topics.

British lawyer (1926–2020) who campaigned for animal rights and voluntary euthanasia, a longtime vice-president of the Society for Psychical Research and investigator of paranormal phenomena.

Imants Barušs is a Canadian psychologist and author specializing in consciousness studies. His research interests focus in particular on ...

Physicist based in Brussels, a specialist in complexity science and nonlinear systems, with interests in how consciousness interacts with aspects of the physical world.