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Parapsychology is the study of the evidence involving phenomena where a person seems to affect or gain information about something through a means not currently explainable within the framework of mainstream, conventional science. Proponents of the existence of these phenomena usually consider them to be a product of some sort of unexplained mental abilities.
Types of parapsychologyThe phenomena in question fall into two broad groups. Extra-sensory perception (ESP), also known as anomalous cognition, includes telepathy, clairvoyance, clairaudience, clairalience, clairgustance, and precognition. Anomalous operation includes psychokinesis (in the past referred to as telekinesis), out-of-body experiences, near-death experiences, mediumship and reincarnation. The general term "psi phenomena" (or the somewhat older term, "psychic phenomena") covers all of these categories. Status of the fieldThe standing of the field of parapsychology has always been controversial within the scientific community. As its name indicates, parapsychology is sometimes considered a sub-branch of psychology, and this has arisen historically since it involved the study of apparently mental faculties. In its modern form, parapsychology is an interdisciplinary field, which has attracted physicists, engineers, and biologists, as well as psychologists and those from the softer sciences. (For an argument that parapsychological phenomena may not in fact be psychological, see Peter J. King's "Psychology without the 'para' (or the psychology)" (http://users.ox.ac.uk/~shil0124/papers/parapsychology.pdf) (Think 3, 2003, pp 43 53).) Many people are not satisfied with the term, and have proposed alternatives, such as "psi research" (similar to the older term "psychical research"), but parapsychology is the term that has gained the greatest acceptance today.
How science views the fieldScientists treat all claims with scientific scepticism. After examining psi claims for over a century, there has been significant difficulty in merging the results of parapsychology studies with other fields of science. As a result, many in the scientific community feel that parapsychology is not a real science, that psi phenomena do not exist, and that parapsychology is a pseudoscience. Many scientists and sceptical observers of the field believe that some parapsychologists knowingly commit fraud; that some are incompetent; and that some are naïve and therefore easily deceived by fraudulent participants; or perhaps some combination of the above. Parapsychologists disagree with this assessment. Many have been formally trained in science, and are familiar with the scientific method. Statistician Jessica Utts has shown in a number of papers (http://anson.ucdavis.edu/~utts/psipapers.html) that:
The precise percentage of scientists holding negative views about parapsychology is unclear, since surveys targeting this group are far less common than those targeting the general population. In his article Save Our Science: Paranormal Phenomena and Zetetics (http://www.unice.fr/zetetique/anglais/a_zetetique.html), skeptic Henri Broch complains:
Sociologist Andrew Greeley, studying surveys and polls since 1978, found not only that the percentage of Americans admitting to psychic experiences had increased over a decade, but that about two thirds of college professors accepted ESP, and more than 25% of "elite scientists" believed in ESP. Other polls have shown that many scientists hold such beliefs privately but do not share such opinions publicly for fear of ridicule. The Parapsychological Association is an affiliate of the American Association for the Advancement of Science (AAAS). There are chairs, centers, or research units concerned with parapsychology in whole or in part at many universities around the world, as well as independent laboratories involved in parapsychology. A few parapsychologists are skeptics, for example Chris French and his colleagues at the Anomalistic Psychology Research Unit at Goldsmiths College in London, and Richard Wiseman and his colleagues at the Perrott-Warrick Research Unit in the Psychology Department of the University of Hertfordshire, both of which units are affiliates of the Parapsychological Association. These researchers do not approach the field with a belief in the paranormal, but are rather interested in the purely psychological aspects of those who report paranormal experiences, along with the study of the psychology of deception, hallucination, etc. These researchers also have provided their own guidelines and input to other parapsychologists for the design of experiments and how to properly test those who claim psychic abilities. Interpretation of the evidenceMany scientists hold that the entire body of evidence to date is of poor quality and not properly controlled; in their view the entire field of parapsychology has produced no results whatsoever. Other scientists hold that there is a small amount of data from properly controlled experiments that can be trusted for a small number of psi phenomena. They hold that this evidence is not definitive, but suggestive enough to warrant further research. Criticisms of parapsychological research
Responses from parapsychologists to some of these criticisms include:
The opinion of parapsychologists regarding the overall evaluation of the body of evidence to date is divided. As noted above, some parapsychologists are skeptic and do not believe that there is anything observed so far which cannot ultimately be explained within the existing framework of known science. Probably a majority of parapsychologists believe in the likelihood, or at least the possibility, of actual psi phenomena, though there is a range of attitudes toward the evidence. Regarding the evidence, the rule of the thumb of the sceptical community is that extraordinary claims require extraordinary evidence. Since skeptics may consider paranormal claims extraordinary, they may think that the evidence needs to be better than what normally would be required. Most people use this approach to evidence in everyday life. For instance, if the news reports that the president of the USA has just arrived in South Korea for a state visit, most people will take this at face value. The news is considered a fairly reliable source of information, and the president visiting a country such as South Korea is not an extraordinary claim. However, if the same news broadcast later mentioned that a 92-year-old man has improved the world record time on the marathon by half an hour, many reasonable people would require more evidence, even despite the assumed reliability of the source, since the claim is extraordinary. Some parapsychologists agree with critics that the field has not yet reached the degree of consistent repeatability of experimental results needed for general consensus. John Beloff, in his book Parapsychology: A Concise History, notes the evanescent – some have said the apparently evasive – nature of psychic phenomena over time, and that the range of phenomena observable in a given era seems to be culturally dependent. For example, in earlier times, psychic research studied physical phenomena demonstrated by spiritualist mediums that, according to the reports passed down to us in the literature, far surpassed anything that any of today's "psychics" can demonstrate. Skeptics consider this more evidence of the non-existence of psi phenomena. Yet many people, such as Beloff, cannot easily dismiss the entirety of all the positive accounts – so many of which came from the experts of their day (including scientists and conjurors), many of whom began as noted skeptics – and so believe that continued research in the field is justified. Other parapsychologists, such as Dean Radin and supporters such as statistician Jessica Utts, take the stance that the existence of certain psi phenomena has been reasonably well established in recent times through repeatable experiments that have been replicated dozens to hundreds of times at labs around the world. They refer to meta-analyses of psi experiments that conclude that the odds against chance (null hypothesis) of experimental results far exceeds that commonly required to establish results in other fields, sometimes by orders of magnitude. Indeed, many parapsychologists have moved on from proof-oriented research, intended primarily to verify the existence of psi phenomena, to "process-oriented" research, intended to explore the parameters and characteristics of psi phenomena. Time will tell whether these results prove to be evanescent as well. James Randi and The Randi ChallengeMagician James Randi demands that magicians as well as scientists be included as observers of psychic experiments, to help detect trickery. Professional magicians such as Randi have claimed that the feats performed by people who claim to be psychics can also be achieved by concealed and fraudulent physical manipulation; Randi, Penn and Teller, and other stage magicians often perform such tricks in public, and then explain how they are done. The James Randi Educational Foundation (JREF) (http://www.randi.org/) offers a one million U.S. dollars prize to anyone who can demonstrate any psychic or paranormal phenomenon. For more information about this challenge, see the corresponding section of the James Randi article. Early Scientific American challengeThe offering of prizes for demonstrations is not new to the field. Circa 1924, Scientific American magazine offered a $5000 prize to anyone who could produce any "visible psychic manifestation". Medium Mina Crandon, known in the literature as "Margery", made a bid and was tested by a committee set up by the editorial staff. Her performance was such that the committee members were split in their opinions. The magazine published the mixed report in its November 1924 issue, no prize was awarded, and the competition was declared closed the following year. In the early 1900s, the then well-known stage magician and skeptic Howard Thurston was sufficiently impressed by the demonstrations of medium Eusapia Palladino that he advertised in the New York Times his offer of $1000 to charity in the name of any fellow conjuror who could duplicate the feats of Ms. Palladino under similar conditions. He had no takers. Other objections to parapsychologyThere are a variety of other objections to parapsychology as well.
Although under the heading 'paranormal phenomena' the report lists topics such as astrology, UFOs, and the Loch Ness Monster, it also lumps in belief in ESP and, by implication, most parapsychology.
History and evaluationTrivia
Famous parapsychologists
Claimed psychics
Critics of parapsychology
Psychic investigations
References
See also
External LinksGeneral organizations
Independent research organizations
University research organizations
Other links
ca:Parapsicologia de:Parapsychologie es:Parapsicología fr:Parapsychologie nl:Parapsychologie ja:超心理学 pl:Parapsychologia ru:Парапсихология
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