Experimental set-up to induce illusory ownership of an artificial body (left panel). The participant could see the mannequin's body from the perspective of the mannequin's head (right panel). Credit: Valeria Petkova, H. Henrik Ehrsson, PLoS ONEFrom Live Science:
Scientists now have manipulated people’s perceptions to make them think they have swapped bodies with another human or even a "humanoid body," experiencing the sensations that the other would feel and giving the illusion of being inside the other's body.
The bizarre achievement hearkens to body swaps portrayed on numerous TV shows and movies such as "Freaky Friday" and "All of Me."
In real life, the cognitive neuroscientists at the Swedish medical university Karolinska Institutet succeeded in making subjects perceive the bodies of mannequins and other people as their own. The illusion also worked even when the two people differed in appearance or were of different sexes. It also worked whether the subject was immobile or was making voluntary movements. However, it was not possible to fool the subjects into identifying with a non-humanoid object, such as a chair or a large block.
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