British author and psi investigator (1890-1986), noted for a robustly critical approach that often brought him into conflict with colleagues.
Scientists & Researchers
In later life, the creator of Sherlock Holmes became an evangelist for spiritualism.
American philosopher who in 1961 published a major study of psi phenomena, endorsing their existence and arguing that they constitute evidence for postmortem survival. This article describes and critiques his ideas.
Professor of philosophy at Rollins College, Orlando, Florida, who has carried out psi research, principally in the area of psychokinesis.
American lawyer, judge, and politician (1799-1874), remembered as one of the first serious investigators of séance mediums.
American psychoanalyst and paranormal investigator (1908-1998) known for his three-year study of the ‘thoughtography’ practised by Ted Serios, and for his insightful theorising about the role of unconscious motivation in the manifestation of psi effects.
French astronomer and psychical researcher (1842-1925), notable for his writings on mediumship and psychic phenomena, including case collections.
Swiss psychologist (1854-1920) noted for his book From India to the Planet Mars, a psychological study of the trance medium Hélène Smith.
Academic psychologist and psi investigator (1934-2010) whose many books covered topics such as transpersonal psychology, dreams and survival of death.
American critic of parapsychology and paranormal claims (1914-2010), considered to have been a founding member of the modern skeptical movement.