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  • 6
    Jan
    2011
    7:43pm, EST

    Psychic proof? Skeptics strike back

    By Alan Boyle, Science Editor, NBC News

    A study laying out evidence of psychic precognition is catching lots of heat from critics, even before its publication in a peer-reviewed journal.

    We first told you about the study back in November: Daryl Bem, a psychology professor emeritus at Cornell University, summed up nine experiments he has conducted over the years into precognition — the idea that human behavior at a given moment can be influenced by information they're given at a later time. Bem's long-running experiments suggested that there was indeed a slight influence.

    Even in November, his 61-page paper was causing a stir because it was peer-reviewed and accepted for publication in the Journal of Personality and Social Psychology. Now that the publication date is nearing, the outcry from other researchers is rising. A report in today's New York Times says Bem's paper is "expected to prompt outrage."


    The University of Oregon's Ray Hyman, another emeritus professor of psychology who created a program called "The Skeptic's Toolbox" to teach critical thinking about paranormal reports, told the Times that "it's craziness, pure craziness."

    msnbc.com

    Click through an interactive guide to your brain's inner workings.

    "I can't believe a major journal is allowing this work in," Hyman was quoted as saying. "I think it's just an embarrassment for the entire field."

    Eric-Jan Wagenmakers, a psychologist at the University of Amsterdam, told the Times that Bem's research "should undergo more scrutiny before it is allowed to enter the field." Wagenmakers is a co-author of a rebuttal to the paper which is due to appear in the same issue of the journal.

    The critics cite the same rule of skepticism promulgated by the late astronomer Carl Sagan: "Extraordinary claims require extraordinary evidence." These folks say Bem's experiments may have yielded seeming evidence of psychic phenomena, or psi for short, but it's not extraordinary enough to meet the bar. They say it's just not statistically significant enough to allow for the conclusion that psychic powers exist. What's more, other scientists have had a hard time replicating Bem's results, as Scientific American's Michael Shermer noted in 2003.

    The journal's editors and reviewers were skeptical as well, but said they decided to go ahead with publication after looking closely at the data.

    ABC News' Ned Potter quoted this passage from an editorial due to be published in the journal: "We openly admit that the reported findings conflict with our own beliefs about causality and that we find them extremely puzzling. Yet, as editors we were guided by the conviction that this paper — as strange as the findings may be — should be evaluated just as any other manuscript on the basis of rigorous peer review."

    Will the psi really hit the fan when Bem's study finally appears in print? Or will it make a splash ... and then fade away inconclusively? What do you think? If you have some precognition about the outcome, share it as a comment below.


    Connect with the Cosmic Log community by "liking" the log's Facebook page or following @b0yle on Twitter. You can also check out "The Case for Pluto," my book about the controversial dwarf planet and the search for new worlds.

    194 comments

    Earl- the study wasn't about psychics, per se, but about the ability of the human mind to subconsciously allow for precognition. The participants were just regular folks, not crystal-ball swirling Edgar Cayce wannabes. I think the study is interesting on its own merits, and I find the adamant dismis …

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Alan Boyle, Science Editor, NBC News

Science editor at msnbc.com, author of "The Case for Pluto," winner of the National Academies Communication Award for Cosmic Log in 2008. Alan Boyle covers the physical sciences, anthropology, technological innovation and space science and exploration for msnbc.com. Check out Cosmic Log's archives by following the links below, and see Boyle's full biography at http://bit.ly/boyle-bio

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