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Brain remembers how to see.

A study of two people who went blind while young and then partially regained sight as adults shows that blind people's brains remember how to see, essentially by allowing hearing circuits to share space with areas normally reserved for vision, report Melissa Saenz of Caltech and her colleagues in the May 14 Journal of Neuroscience. The two sight-restored people use the same brain area to decipher motion that is both visual (objects moving) and auditory (a car passing). The study suggests this brain area is "not a visual area per se; it's a motion area," comments Alvaro Pascual-Leone, a neurologist at Harvard Medical School in Boston. Learning how the brain uses its real estate may improve therapies for restoring vision and hearing, PascuaI-Leone adds.
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Author:Saey, Tina Hesman
Publication:Science News
Article Type:Brief article
Geographic Code:1USA
Date:Jun 7, 2008
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