‘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.

Early reincarnation beliefs in the West are associated with the Greek philosopher Pythagoras in the sixth century BCE

Reincarnation: An Introduction

This introductory article covers beliefs in reincarnation, evidence for reincarnation, and sceptical views of the research.

image of dice being thrown

Psychokinesis Research

Overview of experimental research on mind-matter interaction, commonly referred to as psychokinesis (PK).

Psychologist Gardner Murphy led the ASPR during its heyday in the 1960s.

American Society for Psychical Research (ASPR)

The oldest parapsychological organization in the United States, founded in 1884, now practically defunct.

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.

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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.

a personal objects such as a watch or wallet can is used by a psychometrist to discover information about its owner

Psychometry

Clairvoyance facilitated by holding an object, which enables a psychic to describe key incidents associated with it.

Dreams and ESP

Dreams and ESP

This article describes the experience and study of ESP in dreams, notably of telepathic interactions and precognitions of future events.

eeg

The Brain and Psi

Describes how electroencephalography (EEG) and brain imaging technology are being used to demonstrate psychic functioning.

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.

Agnes and Julius Zancig

Zancigs (telepathy stage act)

A mind-reading act performed by a Danish-American couple that may have included some genuine telepathy.

photo of Ingo Swann

Ingo Swann

American artist (1933–2013) whose psychic ability led him to participate in successful ESP and PK experiments in the 1970s.

image of Sean Harribance

Sean Harribance

Trinidadian psychic of Indian descent who participated in ESP and PK experiments with American researchers from the 1970s.

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.

photo of Morton Prince

Christine Beauchamp

Noted case of multiple personality disorder reported by American psychologist Morton Prince in 1906.

Altered States of Consciousness

Altered States of Consciousness and Psi

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

photograph of James Hyslop (1854-1920), one of the first to refer to spirit obsession in a therapeutic context

Spirit Release Therapy

Clinical treatment used with patients who appear to be ‘possessed’ by harmful spirit entities.

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 Dowses beach, Osterville, MA, where Bennie Judah lost his life

The Junot Sittings (Leonora Piper)

Highly evidential communications purporting to come from the surviving spirit of a deceased teenager.

Portrait of Robert Swain Gifford published in The American Art Review, August 1880

Did Robert Swain Gifford Survive Death?

Analysis of the Thompson-Gifford case of ostensible possession as evidence of survival.

Kathleen Goligher

Goligher Circle

Northern Irish Spiritualist group said to produce striking psychic phenomena, the subject of research in the 1910s.

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.

pilgrims bathing in the Ganges in Varanasi (Benares)

Jagdish Chandra (reincarnation case)

An Indian boy remembered a previous life as the pampered son of a corrupt official in a distant city.

Early reincarnation beliefs in the West are associated with the Greek philosopher Pythagoras in the sixth century BCE

Reincarnation: An Introduction

This introductory article covers beliefs in reincarnation, evidence for reincarnation, and sceptical views of the research.

Fourteen-month-old Osel correctly selects the bell that belonged to a recently deceased monk, Lama Yeshe, helping to confirm his reincarnation

Testing Children’s Past-Life Knowledge

Children who remember past lives are often set tests to try to establish the truth of their claims.

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.

Borley Rectory

Borley Rectory

Until its destruction by fire in 1939, Borley Rectory was the focus of persistent claims of poltergeist disturbances and haunting phenomena.

The Petit Trianon, Versailles

Versailles ‘Time-Slip’

An experience in the gardens of Versailles, described by two Englishwomen in their 1911 book An Adventure.


Why Do Ghosts Wear Clothes?

Sceptics use the fact that apparitions appear fully clad as reason to doubt them. This article discusses why they might.

General Topics

This section lists articles on a variety of topics that are not found in any of the main categories, from brain research and altered states of consciousness to dowsing, crop circles and other anomalistic phenomena.


Eyewitness Testimony (Analysis)

This article discusses the reliability of eyewitness testimony about paranormal events.

Bronislaw Malinowski among the Trobriand Islanders

Anthropology and Psi Research

Anthropologists have long been fascinated by belief in the supernatural, a near universal aspect of human culture.

Cottingley fairies

Cottingley Fairies

1920s hoax by two girl, who persuaded Sir Arthur Conan Doyle that they had photographed themselves playing with fairies.

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.

wellington zangari3

Wellington Zangari

Brazilian psychologist whose research interests include anomalistic psychology, hypnosis and altered states of consciousness.

bardens

Dennis Bardens

English journalist and author (1911–2004), founder of the BBC news programme Panorama.

Richard Broughton

Richard S Broughton

Experimental psi researcher concerned with cognitive and evolutionary aspects of ESP.

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.

BIAL's Behind and Beyond the Brain Symposium, 2018

Bial Foundation

Foundation set up by Portuguese pharmaceutical giant to support research in neuroscience, psychophysiology and parapsychology.


International Consciousness Research Laboratories (ICRL)

Dedicated to understanding consciousness with a view to improving humanity’s future.

Nineteenth-century table turning session

London Dialectical Society

19th-century rationalist debating club whose 1871 investigative report showed certain PK activity to be genuine.

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.

James Alcock

James Alcock

Canadian psychology professor, amateur magician and career psi sceptic, member of the Executive Council for the Committee for Skeptical Inquiry.

Paul Edwards

Reincarnation Case Studies: Criticisms

This article addresses objections critics have raised to the reincarnation case research of Ian Stevenson and others.

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.

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