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February 24, 2011 / Martijn

How to become superhuman

You may think only aliens could have multiple limbs. But now an experiment conducted byHenrik Ehrsson and his colleagues from Karolinska Institute in Sweden has shown that humans can also feel what it’s like to have a third arm and even flinch if it’s threatened with a knife (see video above). The illusion is perceived when a person’s right arm, and a similar fake arm, are stroked simultaneously when both are in view. For the brain trick to work, the extra arm also has to be lined up with the real one and be placed in an anatomically-appropriate position.

via http://feeds.newscientist.com/c/749/f/10897/s/12ec7911/l/0L0Snewscientist0N0Cblogs0Cnstv0C20A110C0A20Cbody0Emorph0Eillusions0Ehow0Eto0Ebecome0Esuperhuman0Bhtml0DDCMP0FOTC0Erss0Gnsref0Fonline0Enews/story01.htm

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