Types of evidence. Philosopher and parapsychologist Stephen E. Braude (1997) distinguishes three broad categories of evidence for psychic functioning: (a) anecdotal or sporadic spontaneous evidence that are unique psi occurrences in the life of an individual outside a laboratory setting; (b) semi-experimental or recurrent spontaneous evidence of psi phenomena that occurs repeatedly in connection with a particular person or location outside a laboratory setting; and (c) experimental evidence of psychic functioning produced by laboratory demonstrations (Braude, 1997, pp. 1-2).
Figure 4-4 identifies experimental research studies that provide what many parapsychologists consider to be “best evidence” for psi functioning, some of which are described in more detail below.
Figure 4-4. Best Evidence for Psi Functioning
Rhine’s Zener-ESP and PK Experiments of 1920-1960. The best known telepathy experiments are the ESP “forced-choice” card tests pioneered by J. B. Rhine and colleagues at Duke University (J. B. Rhine, 1964, 1977) involving hundreds of participants in thousands of individual trials from 1920’s to 1965. The Pearce-Pratt Distance Series of ESP Tests of 1933-34 were conducted during this period. By the 1940’s there had been numerous experimental reports confirming Rhine’s results (Pratt et al., 1966). There have been numerous experimental reports confirming J. B. Rhine’s ESP experimental results (see Pratt et al., 1966).
Dream Telepathy Experiments of the 1960s and 1970s. One of the most successful, systematic “free-response” telepathy studies were conducted from 1966 to 1972 in the dream-research laboratory at Maimonides Medical Center (Child, 1985; Ullman, Krippner, & Vaughn, 1973). “Results suggested that if someone is asked to ‘send’ mental images to a dreaming person, the dreamer will sometimes incorporate those images into the dream” (Radin, 1997, p. 69).
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Schmidt’s REG-ESP and PK Experiments. Helmut Schmidt’s REG experiments have also successfully been replicated by several independent investigators (Jahn, 1982; Nelson & Radin, 2001).
PEAR’s REG-PK Experiments. The Princeton Engineering Anomalies Research (PEAR) laboratory has successfully replicated the REG-PK experiments (Jahn, Dunne, Nelson, Dobyns, & Bradish, 2001). Statistical replicability of psi has also been demonstrated by use of the statistical technique known as meta-analysis
Remote Viewing Studies of the 1970s and 1980’s. Some of the most successful ESP studies were the government-sponsored studies in remote viewing or “anomalous cognition” (called “STARGATE”) designed and developed by the U.S. Army “for the specific purpose of using military intelligence personnel as psychics, to collect intelligence and to evaluate the degree to which our enemies might be capable of using psychics against us” (McMoneagle, 1998, p. 19). The research program in remote-viewing was conducted at what was then the Stanford Research Institute (SRI) from 1973-1988 (Bisaha & Dunne, 1979; Jahn & Dunne, 1987; Targ & Puthoff, 1977; Marks, 1986). The government-sponsored remote-viewing research project was continued at Science Applications International Corporation (SAIC) from 1989-1993 (Utts, 2001), and is now continuing at the Cognitive Sciences Laboratory at Palo Alto (CA). Results of the overall 1973-1988 remote viewing experiments conducted by physicists Russell Targ and Harold Puthoff (1977) at the Stanford Research Institute “are consistent with results of similar experiments in other laboratories” (Utts, 2001, p. 121), including the experiments of Bisaha & Dunne (1979), Jahn & Dunne (1987), and Honorton & Ferrari (1989).
The results…show that remote viewing has been conceptually replicated across a number of laboratories, by various experimenters and in different cultures. This is a robust effect that, were it not in such an unusual domain, would no longer be questioned by science as a real phenomena. It is unlikely that methodological problems could account for the remarkable consistency of results. (Utts, 2001, p. 131)
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Figure 4-4
Studies Providing “Best Evidence” for Authenticity of Psychic Functioning
[Source: K.Ramakrishna Rao (Ed.). (2001). Basic Research in Parapsychology. Jefferson, NC: McFarland]
Bem, D. J., & Honorton, C. (1994). Does psi exist? Replicable evidence for an anomalous process of information transfer. Psychological Bulletin, 115, 4-18.
Braud, L. W., & Braud, W. G. (1974). Further studies of relaxation as a psi-conducive state. Journal of the American Society for Psychical Research, 68, 229-245.
Child, I. L. (1985). Psychology and anomalous observations: The question of ESP in dreams. American Psychologist, 40, 1219-1230.
Fahler, J., & Cadoret, R. J. (1958). ESP card tests of college students with and without hypnosis. Journal of Parapsychology, 22, 125-136.
Honorton, C. (1985). Meta-analysis of psi ganzfeld research: A response to Hyman. Journal of Psychology, 49, 51-91.
Honorton, C., Ferrari, D. C., & Bem, D. J. (1998). Extraversion and ESP performance: A meta-analysis and a new confirmation. Journal of Parapsychology, 62, 255-276.
Jahn, R. G., Dunne, B. J., Nelson, R. D., Dobyns, Y. H., & Bradish, G. J. (1997). Correlations of random binary sequences with pre-stated operator intention: A review of a 12-year program. Journal of Scientific Exploration, 11, 345-367.
Kanthamani, B. K., & Rao, K. R. (1972). Personality characteristics of ESP subjects: III. Extraversion and ESP. Journal of Parapsychology, 36, 198-212.
Nelson, R. D., & Radin, D. I. (1988). Statistically robust anomalous effects: Replication in random event generator experiments. Research in Parapsychology, 23-27.
Palmer, J., & Carpenter, J. C. (1998). Comments on the extraversion-ESP meta-analysis by Honorton, Ferrari, and Bem. Journal of Parapsychology, 62, 277-282.
Rao, K. R., Dukhan, H., & Rao, P. V. K. (1978). Yogic meditation and psi scoring in forced-choice and free-response tests. Journal of Indian Psychology, 1, 160-175.
Rhine, J. B., & Pratt, J. G. (1954). A review of the Pearce-Pratt distance series of ESP tests. Journal of Parapsychology, 18, 165-177.
Schechter, E. I. (1984). Hypnotic induction vs. control conditions: Illustrating an approach to the evaluation of replicability in parapsychological data. Journal of the American Society for Psychical Research, 78, 1-27.
Schlitz, M., & Gruber, E. (1980). Transcontinental remote viewing. Journal of Parapsychology, 44, 305-317; (1981), 45, 233-237.
Schmidt, H. (1973). PK tests with a high-speed random number generator. Journal of Parapsychology, 37, 105-119.
Ullman, M., & Krippner, S. (1969). A laboratory approach to the nocturnal dimension of paranormal experience: Report of a confirmatory study using the REM monitoring technique. Biological Psychiatry, 1, 259-270.
Utts, J. (1996). An assessment of the evidence for psychic functioning. Journal of Scientific Exploration, 10, 3-10.
Wiseman, R., & Schlitz, M. (1997). Experimenter effects and the remote detecting of staring. Journal of Parapsychology, 61, 197-207.
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Ganzfeld Telepathy Experiments from 1974 to 1997. From 1974 to 1997, some 2,549 ganzfeld sessions were reported in at least 40 publications by researchers around the world ….After a 1985 meta-analysis (Hyman & Honorton, 1986)… [and] a six-year replication…[and] publication of autoganzfeld results in 1990…[and] the independent replication of these results…we are fully justified in having very high confidence that people sometimes get small amount of specific information from a distance without the use of the ordinary senses. Psi effects do occur in the ganzfeld. (Radin, 1997, pp. 73-88)
Smith et al., (2003) in the classic textbook Atkinson & Hilgard’s Introduction to Psychology state:
The ganzfeld studies provide impressive replicability: 23 of the 28 studies [analyzed in the 1985 meta-analysis] obtained positive results, an outcome whose probability of occurring by chance is less than one in a thousand. An additional 11 replications using computerized procedures yielded results consistent with the original set of 28 studies (Bem & Honorton, 1994). A more recent meta-analysis of 40 additional ganzfeld studies, conducted between 1987 and 1999, revealed that the ganzfeld procedure continues to replicate. (Bem, Palmer, & Broughton, 2001) (p. 225)
Recurrent Spontaneous Psi Phenomena. Semi-experimental or recurrent spontaneous evidence of psi phenomena that occurs repeatedly in connection with a particular person or location outside a laboratory setting also provide evidence of replication of a phenomenon and insight into the nature, limits, and causes of psi functioning (Braude, 1997). There have been phenomena that have lasted over 20 years that have been investigated.
Importance of spontaneous, recurrent cases. Some of the most famous recurrent cases of psi phenomena include the case of “Patience Worth” (Litvag, 1972; Prince, 1964), the trance-channeled Seth Material by Jane Roberts (1970), the mediumship of Mrs. Lenore Piper studied by William James, the PK effects of D.D. Home (Braude, 1997, pp. 63-94), the psychic phenomena associated with India’s Sathya Sai Baba investigated by Erlendur Haraldsson (1987).
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Three of the “best” kinds of evidence for psi functioning will be briefly described with special focus on the experimental designs used: (1) U. S. government-sponsored emote viewing “Star Gate” telepathy experiments of the 1970’s and 1980’s, (2) the Ganzfeld telepathy experiments from 1974 to 1997, and (3) Helmut Schmit’s automated random event generator PK experiments.
Remote Viewing Telepathy Studies of the 1970’s and 1980’s
For over 20 years the CIA and many other government agencies had used specially-trained clairvoyants (called ‘remote viewers’ by the program) in a variety of operational missions – to penetrate secret Soviet military installations; hunt down Libyan leader Moammar Gadhafi; locate a downed Soviet Tupolev-22 bomber lost in the jungles of Zaire; look for an American general kidnapped by Italian terrorists; and other missions stilled classified. The list of government agencies using the services of psychic spies apparently included the CIA, the Pentagon, the U.S. Army, the U.S. Air Force, the National Security Council, NASA, and the DIA. Some $20 million was spent on the remote viewing ESP program before it was terminated in 1995. (Schmicker, 2002, pp. 74-75)
In a typical telepathic remote-viewing experiment, an experimenter (called a sender) looks at a stimulus (called the target) that has been randomly selected from a set of five possible choices. At the same time, the subject (called a viewer), who is sensorily unaware of the target, attempts to draw or describe (or both) to a second experimenter the target the sender is viewing [i.e., a “free-response” test in which the target pool is unknown to the subject] (Targ & Puthoff, 1977). A judge later attempts to match the viewer’s description to a predetermined pool of target items. The viewer eventually receives feedback about the actual target in which he or she learns about the accuracy of his or her response to see if it will affect subsequent test trials.
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