The Wall Street Journal:
Scientists understandably don’t have much patience for the notion of extrasensory perception. Yet evidence persists in the psychological literature that people’s bodies sometimes unconsciously “predict” unpredictable future events. These visceral responses don’t appear to be the result of sheer chance.
That’s the result of a meta-analysis of earlier papers on this subject conducted by a trio of researchers led by Julia Mossbridge of Northwestern University.
They started with 49 articles but, in bending over backwards to take the most conservative possible approach, tossed out 23 that, for various reasons, didn’t meet their standards. The effect remained. By “effect,” I’m not talking about people having the ability to read palms or tea leaves.
What the studies measured was physiological activity—e.g., heart rate or skin conductance—in participants who, for instance, might have been shown a series of images, some harmless and others frightening. Using computer programs and statistical techniques, experimenters have found that, even before being shown a troubling image, participants sometimes display physiological changes —a faster heart rate, for example—of the kind that would be expected only after seeing the image, and not just because the subjects know a scary snake picture is coming sooner or later.
Read the whole story: The Wall Street Journal