‘Psi’, the Greek letter ψ, is the modern term for psychic phenomena. The existence of psi – and the related idea that consciousness is independent of the physical body (and so may survive bodily death) – are disputed, as they seem to violate well-established natural laws. However, researchers are convinced they have evidence for these things, posing a challenge to materialist science. The Psi Encyclopedia presents their reasoning in over 700 signed articles by 86 authors, many of them senior academics. It also provides links to books, articles and videos that are free to view.

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Key Topics

photograph of JB Rhine, one of the first to explore psychological variables underlying psi

Psychology and Parapsychology

Explores the overlap between psychology and parapsychology, such as personality and other variables linked to psi.

albert einstein2

Eminent People Interested in Psi (list)

A list of some 200 scientists, thinkers, writers, and artists who took seriously the possibility of psi.

Ingo Swann, one of the first remote viewers

Remote Viewing

An experimental form of clairvoyance, in which a suitably trained person attempts to visualise the topography of a distant scene.

Tunnel in Near-Death Experience

Near-Death Experience (Overview)

This article describes anomalous mental events reported by people who have survived a near-fatal accident or illness.

photo of N'kisi, an African Grey parrot involved in ESP experiments

Animals in Psi Research

Describes informal observations, early tests and modern lab experiments looking at animals' psychic capabilities.

Gladys Leonard, medium studied by the Society for Psychical Research

Mediumship and Multiple Personality

The personalities of mediumistic communicators are similar to dissociative identity disorder.

vernon mews

Society for Psychical Research (SPR)

Membership organization founded in London in 1882 for the scientific investigation of claims of psychic phenomena.


European Children with Past-Life Memories

European children speak of past lives less often than Asian children do, yet the cases are very similar.

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ESP & Psychokinesis

The term extra-sensory perception (ESP), introduced in the 1930s, comprises telepathy, clairvoyance and precognition, acknowledging that these categories may considerably overlap. Psychokinesis is the direct influence on matter by mind alone, without physical action. All have been successfully tested in the laboratory and studied in real life situations.

Nina Kulagina

Psi Research in Russia

Limited but significant psi research has been carried out in Russia since the nineteenth century.

photograph of Freiburg, where the IGPP, a leading parapsychology centre in Europe

Experimental Parapsychology in Europe

This article provides an overview of psi research in laboratories across continental Europe.

Brighton, where early ESP experiments were carried out

Smith and Blackburn Controversy

19tth century telepathy tests of two young men, one of whom later said they had cheated.

Gifted People

Most people may only experience a psychic event once or twice in their lives, but for a few it’s a natural ability, which some develop as a professional career. Two types feature in the Psi Encyclopedia: those who have demonstrated telepathy, clairvoyance, precognition or psychokinesis in some way, and those who believe themselves to be in communication with the deceased.

Bangs Sisters

Bangs Sisters

Controversial nineteenth century American spirit mediums, against whom numerous detailed allegations of fraud were

Geraldine Cummins

Geraldine Cummins

Irish medium who published automatic scripts said to originate with well-known people in their discarnate state.

Ted Serios

Ted Serios

Ted Serios (1918–2006) was an adept in the rare phenomenon of ‘thoughtography’ (an ability to 'think' images onto photographic film).

Mind & Body

This category contains articles that treat consciousness in relation to the body. Major topics covered include healing and psychotherapy; dreams and dreaming; and out-of-body experiences, end-of-life experiences, and near-death experiences, all of which suggest that consciousness may have an existence independent of the physical body.

Pam Reynolds

Near-Death Experiences – Paranormal Aspects

List of NDEs with confirmed clairvoyance and other paranormality.

sylvan muldoon

Sylvan J Muldoon

American who wrote about his out-of-body experiences, which occurred throughout his life, and which he was able to control.

Altered States of Consciousness

Altered States of Consciousness and Psi

Altered states of consciousness have long been known to be associated with psi experiences.

Survival of Death

Life continued in a spiritual or purely mental form after bodily death is a staple of religious beliefs worldwide, and likely is as old as humanity. The question of evidence for it has been central to the Society for Psychical Research since its founding in 1882. This category includes articles on mediumship as well as general topics related to the survival question. Other survival-related topics appear under other category headings.

photograph of Joonas Kokkonen

Survival: What Makes An Ideal Case?

Stephen Braude considers flaws in survival research and outlines what would make an ideal case.

Photograph of a sitting for physical phenomena of mediumship at Scole, Norfolk

The Scole Circle

This Norfolk-based group held séances during the 1990s, claiming to have communicated with spirits and observed other phenomena.


Transplant Cases Considered as Evidence for Postmortem Survival

Recipients of organ transplants may take on the personality of their donors.

Reincarnation

Reincarnation beliefs are widespread in the world and in recent decades researchers have found what they believe is evidence of them through the study of people (mainly children) who claim to have lived before. This category includes case studies and overviews of phenomena that appear regularly in the cases. Some articles deal with past life regression as well.

photograph of birthmark in the waist region

Birthmarks in Reincarnation Cases

Birthmarks and birth defects in reincarnation cases correspond to injuries that caused deaths in the previous lives.

University of Virginia, Charlottesville, where a collection of 2500 past life memory cases is held

Reincarnation Case Patterns

Universal, near-universal and culture-linked patterns can be discerned in the dataset of reincarnation cases.

Marty Martyn

Ryan Hammons (reincarnation case)

American case which holds the record for the number of memories related before the previous life was identified.

Haunting

Location-based hauntings have been relatively little studied by parapsychologists, but the frequent incidence of apparitional episodes (the appearance of a deceased family member) attracted the attention of early researchers. Much interest has also centred on so-called ‘poltergeist’ episodes, of powerful domestic disturbances now often attributed to involuntary psychokinetic effects by living agents.

old photograph of Main Street, Sauchie

Sauchie Poltergeist

Poltergeist disturbances centering on an 11-year-old girl. in a Scottish village in 1960.

vienna31

Vienna Workshop Poltergeist

A Viennese member of the Society for Psychical Research describes poltergeist distrurbances he witnessed.

Cheltenham Ghost; Psi Encyclopedia; Society for Psychical Research; Rosina Morton

Cheltenham Ghost

An 1892 report described frequent sightings by multiple witnesses of an apparitional woman dressed in black.

Scientists & Authors

Here can be found more than 300 biographical profiles of key figures who have been involved in psi research and parapsychology as field investigators, experimentalists, theorists and commentators. Many have scientific and academic backgrounds – in psychology, physics, biology, philosophy, engineering and other disciplines.

photo of John Palmer

John Palmer

American psychologist and parapsychologist who has conducted psi research using a range of experimental and theoretical approaches.

annie besant

Annie Besant

Annie Besant (1847–1933) was an English theosophist, socialist and women’s rights activist concerned with spiritual development.


Nancy L Zingrone

American psychologist and parapsychologist who is among the most active workers in disseminating information about the field.

Organizations

The oldest organizations devoted to parapsychology were member organizations like the Society for Psychical Research, established in London in 1882. Since JB Rhine founded the Parapsychology Laboratory at Duke University in 1930, there have been university-based units as well. This category comprises both historical and contemporary bodies concerned with research and education in parapsychology.

Waterside Campus, University of Northampton

Exceptional Experience and Consciousness Studies (EECS)

Based at the University of Northampton, this is the largest centre for parapsychological research in the world.

heartmath institute

Heartmath Institute

California-based research institute investigating the relationship between heart and mind.

california

Southern California Society for Psychical Research

Organization founded in 1961 and merged with the International Foundation for Survival Research, now also defunct, in 1983.

Scepticism

Sceptics argue that psychics and mediums achieve their effects by trickery, that psychic experience is an illusory effect caused by a combination of brain misperceptions and confirmation bias, and that evidence of psi in laboratory tests can be attributed to poor methodology. This category includes biographies of leading sceptics as well as general articles discussing their allegations.

Susan Blackmore

Susan J Blackmore

British psychologist, consciousness researcher and psi sceptic, who has frequently appeared in the media promoting her views.


CEM Hansel

British psychologist who authored controversial critiques of parapsychology.  

book cover of Betrayers of the Truth: Fraud and Deceit in the Halls of Science, by William J Broad and Nicholas Wade (1983)

Fraud in Parapsychology and Other Sciences

The assumption that psi researchers are more likely to commit fraud than other scientists is wrong.

General Topics

This category contains articles on a variety of topics that do not fit well in any of the main categories, from dowsing to crop circles and other anomalistic phenomena.

orbs

Orbs (Light Anomalies)

Light anomalies often seen in photographs and video are attributed by some to the presence of ghosts or spirit entities.

Horse Frightened by a Thunderstorm, by Eugène Delacroix (1824)

Boggle Threshold

Term coined by Renée Haynes to refer to the level of tolerance of a discomforting new idea, varying from person to person.

Extraordinary light phenomena

Extraordinary Light Phenomena

The widespread experience of a seeing an extraordinary light, one that brings comfort, love or healing.

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