In ghostlore, a poltergeist (// or //; German for "noisy ghost" or "noisy spirit") is a type of ghost or spirit that is responsible for physical disturbances, such as loud noises and objects being moved or destroyed. Most claims about or fictional descriptions of poltergeists show them as capable of pinching, biting, hitting, and tripping people. They are also depicted as capable of the movement or levitation of objects such as furniture and cutlery, or noises such as knocking on doors.
They have traditionally been described as troublesome spirits who haunt a particular person instead of a specific location. Some variation of poltergeist folklore is found in many different cultures. Early claims of spirits that supposedly harass and torment their victims date back to the 1st century, but references to poltergeists became more common in the early 17th century.
The word poltergeist comes from the German language words poltern ("to make sound" and "to rumble") and Geist ("ghost" and "spirit"), and the term itself translates as "noisy ghost", "rumble-ghost" or a "loud spirit". A synonym coined by René Sudre is thorybism, from Greek thorybein ("to make noise or uproar; throw into confusion").
Many claims have been made that poltergeist activity explains strange events (including those by modern self-styled ghost hunters), however their evidence has so far not stood up to scrutiny.
Psychical researcher Frank Podmore proposed the 'naughty little girl' theory for poltergeist cases (many of which have seemed to centre on an adolescent, usually a girl). He found that the centre of the disturbance was often a child who was throwing objects around to fool or scare people for attention. Skeptical investigator Joe Nickell says that claimed poltergeist incidents typically originate from "an individual who is motivated to cause mischief". According to Nickell:
In the typical poltergeist outbreak, small objects are hurled through the air by unseen forces, furniture is overturned, or other disturbances occur—usually just what could be accomplished by a juvenile trickster determined to plague credulous adults.
Nickell writes that reports are often exaggerated by credulous witnesses.
Time and again in other "poltergeist" outbreaks, witnesses have reported an object leaping from its resting place supposedly on its own, when it is likely that the perpetrator had secretly obtained the object sometime earlier and waited for an opportunity to fling it, even from outside the room—thus supposedly proving he or she was innocent.
According to research in anomalistic psychology, claims of poltergeist activity can be explained by psychological factors such as illusion, memory lapses, and wishful thinking. A study (Lange and Houran, 1998) wrote that poltergeist experiences are delusions "resulting from the affective and cognitive dynamics of percipients' interpretation of ambiguous stimuli". Psychologist Donovan Rawcliffe has written that almost all poltergeist cases that have been investigated turned out to be based on trickery, whilst the rest are attributable to psychological factors such as hallucinations.
Attempts have also been made to scientifically explain poltergeist disturbances that have not been traced to fraud or psychological factors. Skeptic and magician Milbourne Christopher found that some cases of poltergeist activity can be attributed to unusual air currents, such as a 1957 case on Cape Cod where downdrafts from an uncovered chimney became strong enough to blow a mirror off of a wall, overturn chairs and knock things off shelves.
Unverified natural phenomenaEdit
In the 1950s, Guy William Lambert proposed that reported poltergeist phenomena could be explained by the movement of underground water causing stress on houses. He suggested that water turbulence could cause strange sounds or structural movement of the property, possibly causing the house to vibrate and move objects. Later researchers, such as Alan Gauld and Tony Cornell, tested Lambert's hypothesis by placing specific objects in different rooms and subjecting the house to strong mechanical vibrations. They discovered that although the structure of the building had been damaged, only a few of the objects moved a very short distance. The skeptic Trevor H. Hall criticized the hypothesis claiming if it was true "the building would almost certainly fall into ruins." According to Richard Wiseman the hypothesis has not held up to scrutiny.
Michael Persinger has theorized that seismic activity could cause poltergeist phenomena. However, Persinger's claims regarding the effects of environmental geomagnetic activity on paranormal experiences have not been independently replicated and, like his findings regarding the God helmet, may simply be explained by the suggestibility of participants.
Historically, malicious spirits were blamed for poltergeist activity.[clarification needed] According to Allan Kardec, the founder of Spiritism, poltergeists are manifestations of disembodied spirits of low level, belonging to the sixth class of the third order. Under this explanation, they are believed to be closely associated with the elements (fire, air, water, earth). In Finland, somewhat famous are the case of the "Mäkkylä Ghost" in 1946, which received attention in the press at the time, and the "Devils of Martin" in Ylöjärvi in the late 19th century, for which affidavits were obtained in court. Samuli Paulaharju has also recorded a memoir of a typical poltergeist, the case of "Salkko-Niila", from the south of Lake Inari in his book Memoirs of Lapland (Lapin muisteluksia). The story has also been published in the collection of Mythical Stories (Myytillisiä tarinoita) edited by Lauri Simonsuuri.
Psychoanalyst Carl Gustav Jung was interested in the concept of poltergeists and the occult in general. Jung believed that a female cousin's trance states were responsible for a dining table splitting in two and his later discovery of a broken bread knife. Jung also believed that when a bookcase gave an explosive cracking sound during a meeting with Sigmund Freud in 1909, he correctly predicted there would be a second sound, speculating that such phenomena were caused by 'exteriorization' of his subconscious mind. Freud disagreed, and concluded there was some natural cause. Freud biographers maintain the sounds were likely caused by the wood of the bookcase contracting as it dried out.
- Glenluce Devil (1654-1656)
- Drummer of Tedworth (1662)
- Mackie poltergeist (1695)
- Epworth Rectory (1716–1717)
- Hinton Ampner (1764-1771)
- Stockwell ghost (1772)
- Sampford Peverell (1810-1811)
- Bell Witch of Tennessee (1817–1872)
- Bealings Bells (1834)
- Angelique Cottin (ca. 1846)
- Ballechin House (1876)
- Great Amherst Mystery (1878–1879)
- Caledonia Mills (1899-1922)
- Gef the Talking Mongoose (1931)
- Borley Rectory (1937) 
- Thornton Heath poltergeist (1938)
- Seaford poltergeist (1958)
- Matthew Manning (1960s–1970s)
- The Black Monk of Pontefract (1960s–1970s)
- Rosenheim Poltergeist (1967)
- The Amityville case (1975)
- The Enfield Poltergeist (1977)
- The Thornton Road poltergeist of Birmingham (1981)
- Tina Resch (1984)
- The Canneto di Caronia fires poltergeist (2004–05)
- Aliens, Ghosts, and Cults: Legends We Live. Bill Ellis. 2001
- Hines, Terence. (2003). Pseudoscience and the Paranormal. Prometheus Books. p. 98. ISBN 978-1573929790
- Dingwall, John; Hall, Trevor H. (1958). Four Modern Ghosts. Duckworth. pp. 13-14
- Goldstuck, Arthur. The Ghost that Closed Down the Town: The Story of the Haunting of South Africa. Penguin Books. p. 275. ISBN 978-0143025054 "Podmore advanced a 'naughty little girl' theory, suggesting that trickery accounted for nearly all poltergeist manifestations, and that the girls and boys who so often seemed to be the victims of poltergeists were actually pulling the strings."
- Joe Nickell (3 July 2012). The Science of Ghosts: Searching for Spirits of the Dead. Prometheus Books. pp. 283–. ISBN 978-1-61614-586-6.
- Nickell, Joe. "Enfield Poltergeist, Investigative Files". August 2012. Committee for Skeptical Inquiry. Retrieved 3 December 2013.
- Zusne, Leonard; Jones, Warren H. (1989). Anomalistic Psychology: A Study of Magical Thinking. Psychology Press. p. 192. ISBN 978-0805805086
- Lange, R; Houran, J. (1998). Delusions of the paranormal: A haunting question of perception. Journal of Nervous and Mental Disease 186 (10): 637–645.
- Rawcliffe, Donovan. (1988). Occult and Supernatural Phenomena. Dover Publications. pp. 377-378. ISBN 0-486-25551-4
- Christopher, Milbourne (1970). ESP, Seers & Psychics: What the Occult Really Is. New York: Crowell. p. 142. ISBN 978-0-690-26815-7. OCLC 97063.
A heavy mirror fell from the bedroom wall and an ash tray that had been resting on a table with a glass top slammed against the surface with such force that the glass was shattered.
- Wiseman, Richard (1 April 2011). Paranormality: Why We see What Isn't There. Macmillan. pp. 167–169. ISBN 978-1743038383.
- Lambert, G. W. (1955). Poltergeists: A Physical Theory. Journal of the Society for Psychical Research 38: 49-71.
- Dingwall, Eric; Hall, Trevor H. (1958). Four Modern Ghosts. Gerald Duckworth. p. 105
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- Allan Kardec, Le Livre des Esprits. (2000). chapter 106, Jean de Bonnot. p.46.
- IS: Espoon poltergeist: Mitä tapahtui Mäkkylän kummitustalossa syksyllä 1946? (in Finnish)
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- "Paulaharju Samuli, Lapin muisteluksia - Salkko-Niila" (in Finnish). Retrieved October 9, 2020.
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