Standing in Someone Else’s Shoes, Almost for Real

From The New York Times:

Mind Marriage counselors have couples role-play, each one taking the other spouse’s part. Psychologists have rapists and other criminals describe their crime from the point of view of the victim. Like novelists or moviemakers, their purpose is to transport people, mentally, into the mind of another. Now, neuroscientists have shown that they can make this experience physical, creating a “body swapping” illusion that could have a profound effect on a range of therapeutic techniques. At the annual meeting of the Society for Neuroscience last month, Swedish researchers presented evidence that the brain, when tricked by optical and sensory illusions, can quickly adopt any other human form, no matter how different, as its own.

“You can see the possibilities, putting a male in a female body, young in old, white in black and vice versa,” said Dr. Henrik Ehrsson of the Karolinska Institute in Stockholm, who with his colleague Valeria Petkova described the work to other scientists at the meeting. Their full study is to appear online this week in the journal PLoS One. .The technique is simple. A subject stands or sits opposite the scientist, as if engaged in an interview.. Both are wearing headsets, with special goggles, the scientist’s containing small film cameras. The goggles are rigged so the subject sees what the scientist sees: to the right and left are the scientist’s arms, and below is the scientist’s body.

More here.

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