Phantom hand mapped for the first time

NewScientist:

EVER wanted to know what an invisible hand looks like? Well, it is slightly wider than a real hand, and it has shorter fingers too. For the first time, the perceived shape of a phantom limb has been measured. This should make it possible to learn more about how the brain represents what we look like.

The illusion of a phantom limb can kick in after an amputation or in people missing limbs from congenital disease. The result is the sensation that the limb is, in fact, present.

One theory suggests people with phantom limbs take cues from those around them to work out what their missing body part looks like. Another theory is that the sensation of an invisible limb reflects brain activity in regions that map our body in space.

Read the whole story: NewScientist

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