Color cues may change perception of pain, research shows

08/21/2013 | ScientificAmerican.com

A virtual reality experiment in which patients saw part of their arm in different colors found their perception of heat-related pain at the site was higher when the color was red than when it was blue, according to a study in the journal Frontiers in Human Neuroscience. Researchers from the University of Barcelona also found subjects reported less pain when the color red was near but not on the virtual arm, compared with when the arm itself was red.

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