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29.3.12

心靈感應是否與科學有衝突?

Does telepathy conflict with science ?

By Chris Carter
More scientists and skeptics than ever consider psychic phenomena to be a possibility on some level.
The idea of extrasensory perception is not a new one, studies and experiments have been conducted for decades for both scientific research purposes and for use in military applications. While few scientists today would outright state with any certainty that psychic abilities do exist, most would be unwilling to make the claim that they do not either.
Recently, journalist Steven Volk was surprised to discover that leading skeptical psychologist Richard Wiseman has admitted that the evidence for telepathy is so good that “by the standards of any other area of science, [telepathy] is proven.” Mr. Volk goes on to write, “Even more incredibly, as I report in Fringe-ology, another leading skeptic, Chris French, agrees with him.”
Mr. Volk might even be more surprised to learn that back in 1951 psychologist Donald Hebb wrote this:
“Why do we not accept ESP [extrasensory perception] as a psychological fact? [The Rhine Research Center] has offered enough evidence to have convinced us on almost any other issue … Personally, I do not accept ESP for a moment, because it does not make sense. My external criteria, both of physics and of physiology, say that ESP is not a fact despite the behavioral evidence that has been reported. I cannot see what other basis my colleagues have for rejecting it … Rhine may still turn out to be right, improbable as I think that is, and my own rejection of his view is—in the literal sense—prejudice.”
Four years later, George Price, then a research associate at the Department of Medicine at the University of Minnesota, published an article in the prestigious journal Science that began:
“Believers in psychic phenomena … appear to have won a decisive victory and virtually silenced opposition. … This victory is the result of careful experimentation and intelligent argumentation. Dozens of experimenters have obtained positive results in ESP experiments, and the mathematical procedures have been approved by leading statisticians. … Against all this evidence, almost the only defense remaining to the skeptical scientist is ignorance.”
But Price then argued, “ESP is incompatible with current scientific theory,” and asked:
“If, then, parapsychology and modern science are incompatible, why not reject parapsychology? … The choice is between believing in something ‘truly revolutionary’ and ‘radically contradictory to contemporary thought’ and believing in the occurrence of fraud and self-delusion. Which is more reasonable?”
So, here we have two skeptics in effect admitting that if this were any other field of inquiry then the experimental data would have carried the day by 1950.
Like Price and Hebb before them, both Wiseman and French hold that the claim of telepathy is so extraordinary that we need a greater level of evidence than we normally demand. Why should this be so? Most people believe in the reality of telepathy based on their own experiences, and are puzzled by the description of telepathy as “extraordinary.”
It is even more puzzling when surveys show that a large proportion of scientists accept the possibility that telepathy exists. Two surveys of over 500 scientists in one case and over 1,000 in another both found that the majority of respondents considered ESP “an established fact” or “a likely possibility”—56 percent in one and 67 percent in the other.
Polls such as this suggest that most scientists are curious and open-minded about psi. This, however, does not seem to be the case in one field: psychology. In the former study, only 3 percent of natural scientists considered ESP “an impossibility,” compared to 34 percent of psychologists.