Standing in Someone Else's Shoes, Almost for Real

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.
(..)
In previous work, neuroscientists have induced various kinds of out-of-body experiences using similar techniques. The brain is so easily tricked, they say, precisely because it has spent a lifetime in its own body. It builds models of the world instantaneously, based on lived experience and using split-second assumptions — namely, that the eyes are attached to the skull.
(..)
The evidence that inhabiting another’s perspective can change behavior comes in part from virtual-reality experiments. In these studies, researchers create avatars that mimic a person’s every movement. After watching their “reflection” in a virtual mirror, people mentally inhabit this avatar at some level, regardless of its sex, race or appearance. In several studies, for instance, researchers have shown that white people who spend time interacting virtually as black avatars become less anxious about racial differences.

(..)
The evidence that inhabiting another’s perspective can change behavior comes in part from virtual-reality experiments. In these studies, researchers create avatars that mimic a person’s every movement. After watching their “reflection” in a virtual mirror, people mentally inhabit this avatar at some level, regardless of its sex, race or appearance. In several studies, for instance, researchers have shown that white people who spend time interacting virtually as black avatars become less anxious about racial differences.
(..)
In one experiment, the Stanford team found that people inhabiting physically attractive avatars were far more socially intimate in virtual interactions than those who had less appealing ones. The effect was subconscious: the study participants were not aware that they were especially good-looking, or that in virtual conversations they moved three feet closer to virtual conversation partners and revealed more about themselves than others did. This confidence lingered even after the experiment was over, when the virtual lookers picked more attractive partners as matches for a date.