Big Question: Is there a sixth sense?

Evidence for a sixth sense remains elusive. Can "psychics" really see beyond, or is it all a bunch of tricks and guesswork? Curiosity contributor Jennifer Horton focused her senses on the possibility of a sixth sense.

Extrasensory perception (ESP), is often referred to as the "sixth sense" because it occurs independently of our established senses. Is ESP real? A number of studies claim to provide proof of paranormal abilities, but their results have never been replicated. One group claiming to have found evidence of psychic abilities, the Princeton Engineering Anomalies Research group, shut down in 2007 without ever proving their claims. In March, 2011, the "Journal of Personality and Social Psychology" published a paper featuring experiments performed by Daryl J. Bem, a Cornell professor who claims his results provide strong evidence for the existence of ESP. But others in the scientific community criticized Bem's methodology.

Methodology aside, testing for ESP is a bit iffy. Given that ESP essentially deals with intangibles and the unexplained, is it really something that can be tested? Until someone comes up with an ESP-meter, the answer to whether ESP is real or not will depend in large part on whom you ask.

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