Seeing with your hands? Hand amputation may result in altered perception around the hands

The space within reach of our hands -- where actions such as grasping and touching occur -- is known as the "action space." New research indicates that amputation of the hand results in distorted visuospatial perception (i.e., figuring out where in space objects are located) of the action space. These findings suggest that losing a hand may shrink the action space on the amputated side, leading to permanent distortions in spatial perception.

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