Sixth sense is also known as extra sensory perception
Extra-sensory perception, or ESP, is the ability to acquire information by means other than the known senses of taste, sight, touch, smell, hearing, balance and proprioception. The term implies sources of information unknown to science. Extra-sensory perception is also sometimes referred to as a sixth sense (as in coming after the first five listed, which are considered the five "classical" senses). The active agent through which the mind is able to receive ESP impressions has been named psi (Ψ, ψ).
Types of ESP
Specific types of extra-sensory perception include:
* Paranormal perception of people, places or events by means of Clairvoyance (remote viewing).
* Perception of other times via precognition, retrocognition. This is usually considered to be the same as clairvoyance, except that the perception travels through time.
* Perception of aspects of others which most people cannot perceive, by means of aura reading, medical intuition, clairsentience and telepathy etc.
* Perception of aspects of things which most people cannot perceive through clairvoyance, clairsentience and clairgustance) etc.
* The ability to sense communications from and/or communicate with people in remote locations (telepathy).
* The ability to perceive environments or communications while psychically "at" a remote location by means of Out-of-body experiences (also called spirit walking and astral projection), or while in other dimensions.
* The ability to communicate with the souls (spirits) of persons or animals who have died via mediumship (séancing). Mediumship is an umbrella term which primarily means that a person is able to communicate with deceased persons, or allow deceased persons to communicate through the medium by temporarily using his or her body. But mediumship may also include abilities such as having out-of-body experiences, or clairvoyance, clairaudience, and clairsentience as well as other paranormal abilities.
The study of these abilities, called parapsychology, includes other phenomena such as psychometry and psychokinesis.
A person capable of using ESP is often referred to as a psychic or as having psychic powers.
[edit] History of ESP
The notion of extra-sensory perception existed in antiquity. In many ancient cultures, such powers were ascribed to people who purported to use them for second sight or communicate with deities, ancestors, spirits, etc.
[edit] Extra-sensory perception and hypnosis
When Franz Anton Mesmer and Grigori Rasputin were first popularizing hypnosis, the legend came about that a person who was hypnotized would be able to demonstrate ESP. Carl Sargent, a psychology major at the University of Cambridge, heard about the early claims of a hypnosis-ESP link, and designed an experiment to test whether they had merit. He recruited forty fellow college students, none of whom identified him- or herself as having ESP, and then divided them into a group that would be hypnotized before being tested with a pack of 25 Zener cards, and a control group that would be tested with the same Zener cards. The control subjects averaged a score of 5 out of 25 right, exactly what chance would indicate. The subjects who were hypnotized did more than twice as well, averaging a score of 11.9 out of 25 right. Sargent's own interpretation of the experiment is that ESP is associated with a relaxed state of mind and a freer, more atavistic level of consciousness. Skeptics believe that Sargent's experiments lacked proper controls.
[edit] J.B.Rhine
In the 1930s, at Duke University in North Carolina, J. B. Rhine and his wife Louisa tried to transform psychical research into an experimental science. To avoid the connotations of hauntings and the seance room, they renamed it "parapsychology". While Louisa Rhine concentrated on collecting accounts of spontaneous cases, J. B. Rhine worked largely in the laboratory, carefully defining terms such as ESP and psi, and designing experiments to test them. A simple set of cards was developed, originally called Zener cards (after their designer) —but now called ESP cards. They bear the symbols circle, square, wavy lines, cross, and star; there are five cards of each in a pack of 25.
In a telepathy experiment the "sender" looks at a series of cards while the "receiver" guesses the symbols. To try to observe clairvoyance, the pack of cards is hidden from everyone while the receiver guesses. To try to observe precognition, the order of the cards is determined after the guesses are made.
In all such experiments the order of the cards must be random so that hits are not obtained through systematic biases or prior knowledge. At first the cards were shuffled by hand, then by machine. Later, random number tables were used and nowadays, computers. An advantage of ESP cards is that statistics can easily be applied to determine whether the number of hits obtained is higher than would be expected by chance. Rhine used ordinary people as subjects and claimed that, on average, they did significantly better than chance expectation. Later he used dice to test for PK and also claimed results that were better than chance.
Rhine's controversial 1940 book, Extrasensory Perception After Sixty Years, led others to criticize his methods and to try to repeat his findings. Most failed, including the London mathematician Samuel Soal, who tried for five years without success. Eventually he re-analysed many of his results and found that one subject was apparently performing precognition. In the early 1950s, further tests with this subject, under tightly controlled conditions, gave statistically significant results—convincing many people that Rhine was right. Accusations and counter-claims abounded until, in 1978, it was finally proven that Soal had cheated and the results were worthless. However, many people had been convinced by these results for nearly 30 years.
Other parapsychologists found that some subjects scored below chance (psi-missing); scores tended to decline during testing (the "decline effect"); and people who believed in psi, called "sheep", scored better than those who did not believe in it ("goats")—which became known as the sheep-goat effect. However, none of these effects proved easy to replicate. In recent years parapsychologists have turned to other methods, notably free-response ESP tests and micro-PK.
[edit] Modern day ESP investigation
People are currently investigating this phenomenon today, such as the scientist Dean Radin, author of the popular books The Conscious Universe: The scientific Truth of Psychic Phenomena and Entangled Minds: Extrasensory Experiences in a Quantum Reality. For fifteen years he has investigated psi phenomena through appointments at Princeton University, University of Edinburgh, University of Nevada, SRI International, Boundary Institute, and Interval Research Corporation. He is presently Laboratory Director at the Institute of Noetic Sciences in Petaluma, California.
[edit] Ongoing debates about the existence of ESP
Proponents of the existence of ESP point to numerous scientific studies that appear to offer evidence of the phenomenon's existence: the work of J. B. Rhine, Russell Targ, Harold E. Puthoff and physicists at SRI International in the 1970s, are often cited in arguments that ESP exists. However, books such as James *****'s The Truth About Uri Geller, which examines the claims of the titular psychic, claim that these studies were not conducted with proper scientific controls, and that when alleged psychics such as Geller are tested with such controls in place, they have not shown the ability to produce results greater than would be accounted for by chance. However, James *****'s credentials as a disinterested scientific observer have been questioned.
The study of ESP suffers from a great lack of skeptics who are both emotionally disinterested and have adequate credentials to evaluate the field. Such criticism is extremely valuable in any scientific field, because it allows experiments to be refined to the point that the evidence becomes compelling. One of the few skeptics who is acknowledged by both parapsychologists and skeptics to be both fair and knowledable is Ray Hyman.
In general, some ESP studies have failed to find any evidence of the phenomenon, and a few of those studies that have produced apparent evidence for its existence are marred by fraud or methodological flaws. However, the laboratory methods of testing for ESP have been subjected to repeated rounds of criticism, after which parapsychologists improved their testing methods. Many of these improvements were aimed at preventing study subjects from cheating or from consciously or unconsciously obtaining information which might bias the results of the studies. Contrary to the prediction of skeptics however, ESP studies have continued to produce statistically significant results, in spite of the improvements in methodology. Thus, in recent years even many skeptics of parapsychology have had to admit that these phenomena are worthy of further funding and research.[1] But many ESP researchers claim that the phenomenon is a "taboo" subject in the scientific and materialist/rationalist communities, resulting in sociological rather than scientific barriers to research, and in denial of funding for further study and theoretical development.
[edit] Difficulties testing ESP
It has been suggested that ESP may have a subtle rather than an overt effect, and that the ability to perceive may be altered by the nature of the event being perceived. For example, some proponents of ESP claim that predicting whether a loved one was just involved in a car crash might have a stronger effect than sensing which playing card was drawn from a deck, even though the latter is better suited for scientific studies in the laberatory. This dependance of ESP on the mental states of the participants, and on the meaning of the events to those participants, is one reason why many scientists remain skeptical.
Proponents of ESP such as biologist Rupert Sheldrake point to cases of ESP involving subjects who are familiar with each other that they believe indicate a positive demonstration of ESP abilities. [1]. Critics respond to Sheldrake's claims by arguing that his experiments are methodologically flawed and lack proper controls such as sufficient randomization, that they are not peer-reviewed, and as such, that they are not scientifically reliable. Sheldrake has responded to many critics. For example, he explains that he has tried countless randomization techniques, often employing methods suggested by critics, but that he still obtained results greater than chance each time. The Responses to 14 of his critics are in the Journal of Consciousness Studies (JCS Vol 12 No. 6, 2005).
There are no consistent and agreed-upon standards by which ESP powers may be tested, in the way one might test for, say, electrical current or the chemical composition of a substance. Often, when self-proclaimed psychics are challenged by skeptics and fail to prove their alleged powers, they assign all sorts of reasons for their failure, such as that the skeptic is affecting the experiment with "negative energy." The non-empirical nature of this response, as well as the practice of charlatanry in ESP and psychic circles [2], is one reason why scientists and materialists conclude that the existence of the phenomena cannot be established scientifically by anything other than statistically strong evidence from properly controlled laboratory studies.
The main current debate concerning ESP surrounds whether or not such statistically compelling laboratory evidence has already been accumulated. Some dispute the positive interpretation of results obtained in scientific studies of ESP, as the most compelling and repeatable results are all small to moderate statistical results. Critics of ESP argue that the results are too small to be significant, while proponents of ESP argue that the overall results of the numerous studies show a consistent and highly significant trend. Although the combined significance derived from meta-analysis of ESP studies is large and considered to be further proof by proponents, it does not include an unknown number of unpublished non-significant findings. Some skeptics point to this "file drawer" problem as reason to doubt the significance of the meta-analyses. However, as detailed by Dr. Dean Radin in his book The Conscious Universe, there are ways to control for this problem, and meta-analyses which do so still show highly statistically significant positive results. Some have argued that the very large number of trials which must be conducted to obtain statistically significant results constitutes a problem for verifying the legitimacy of ESP claims. However other areas of science, such as the medical field, rely heavily on this method of data collection. For example, the statistical indications of the positive effect of aspirin on the heart are less than many ESP results, yet their existence is considered well-evidenced.[2]
[edit] General criticism
Claims of extra-sensory perception have been subjected to repeated criticism by mainstream scientists, and many in the scientific community believe that ESP does not occur because they believe ESP violates the known laws of physics. Most of the criticism of ESP laboratory experiments hinges on two major contentions: first, that studies which have shown evidence of ESP are often either anecdotal or plagued with methodological flaws which could have allowed cheating, and second, that the results of studies which are not flawed show no evidence of ESP. However these same critics do not provide scientific evidence for this proposition.
Sometimes, ESP experiments are inaccurately portrayed through popular news media. An example of this case is that of a dog in England named Jaytee, who his owners claimed had an ability to sense when one of them was leaving work to come home (which he allegedly displayed by running out to the porch at that time). Rupert Sheldrake tested JayTee extensively, including more than 50 videotaped trials, and claimed that his tests had shown that the dog had ESP ability. Two skeptical scientists from the University of Hertfordshire, Richard Wiseman and Matthew Smith, then used Sheldrake's video camera setup, conducted 4 trials of their own and claimed that the dog had no such ability. Wiseman and Smith concluded that while Jaytee made several trips to the window during the day, the action was more in response to having heard some kind of noise outside.[3] However, Sheldrake convincingly demonstrated that the data they collected actually matched his own data. [4] Sheldrake has commented on the experiment conducted by Wiseman:
"As in my own experiments, he sometimes went to the window at other times, for example to bark at passing cats, but he was at the window far more when Pam was on her way home than when she was not. In the three experiments Wiseman did in Pam's parents' flat, Jaytee was at the window an average of 4% of the time during the main period of Pam's absence, and 78% of the time when she was on the way home. This difference was statistically significant" [5]
A great deal of Extra Sensory Perception occurs spontaneously to numerous individuals in conditions which are not scientifically controlled. Such experiences have often been reported to be much stronger and more obvious than those reported in laboratory experiments. These experiences, rather than laboratory evidence, have historically been the basis for the extremely widespread belief in the authenticity of these phenomena. However, because it has proven extremely difficult (though some would say not impossible) to replicate such experiences under controlled scientific conditions, skeptics reject them as unproven hearsay. Skeptics point out that eyewitness accounts are often flawed; that memories tend to be become modified when the experience is often spoken about or when there is emotional involvement in the subject matter; and that people are wont to misinterpret anomalous occurrences which, while unusual, may have perfectly normal explanations. On the other hand, proponents of the reality of ESP argue that the existence of even small effects in a laboratory setting tend to militate for the argument that spontaneous occurrences of ESP are authentic. When skeptics claim that flaws in the analysis or cheating must account for all evidence of ESP abilities in the hundreds of studies which have been conducted over the last century, this strikes many as a very extraordinary claim indeed. However, in the absence of an easily and reliably replicable laboratory experiment which can show a strong ESP effect, and without any theoretical explanation of how ESP might work, this debate remains unresolved.
2006-10-25 05:30:19
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answer #10
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answered by Anonymous
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