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Blind Learn To See With Tongue
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Summary
The blind visualize objects through their sense of touch. Taking this concept further, WICAB Inc has developed Brainport - a tool to assist the blind people view the world through their tongues. It swaps tiny cameras for eyes and transforms the images to electrical impulses that are felt on their tongues. In normal vision the eye sends signal to the middle of the brain and from there they are sent to the visual cortex at the back of the brain. But the brainport vision involves stimulating the tongue with an array of tiny electrodes. The nerves in the tongue send signal through a different pathway to the brain stem and the area that deals with touch. Eventually the blind person learns to interpret touch as sight in the visual vortex. The ability of brainport was established through an experiment involving a blind man who could navigate, recognize shapes and even recognize numbers.
Keywords: blind, touch, WICAB Inc, Brainport, electrical impulses, nerves, Eyes, visual vortex
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