Eminent British psychologist (1871–1938) who during appointments at American universities contributed largely to the establishing of parapsychology as an experimental science.

Scottish psychiatrist, university teacher and medical historian (1917-2003) who studied the kinds of psychic experiences reported by his patients.

American consciousness researcher and author of The Selection Effect (2020), which describes a long-term micro-psychokinesis self-study with a random event generator. 

American clinical psychologist, parapsychologist and broadcaster, who as host of New Thinking Allowed  has interviewed hundreds of experts on topics relating to scientific research, consciousness and spirituality.

Quantum engineer at the University of Colarado who has carried out experiments in applied psi and remote viewing.

Brazilian psychiatrist who has carried out empirical studies of mediumship and spiritual experiences.

American parapsychologist (1942-2004), chair of Edinburgh's Koestler Parapsychology Unit,  many of whose doctoral students now teach parapsychology in British universities.

Study on mediumship by an Italian psychiatrist and psychical researcher (1852-1929), focusing in particular on Eusapia Palladino, with the emphasis on clinical and psychological aspects. 

American cognitive neuroscientist, author and educator who has carried out parapsychological studies, notably on precognition and presentiment effects.

American author (1903-1969) of books about his out-of-body experiences, which he said occurred throughout his life, and which by experiment he found he could largely control.