Seeing Is Hearing: Blind Echolocators Use Visual Areas Of The Brain

Some blind individuals use echoes from tongue or finger clicks to recognize objects in the distance, such echolocation can almost be a radar 'replacement' for vision. Recent research showed that echolocation in blind individuals is a full form of sensory substitution, and that blind echolocation experts recruit regions of the brain normally associated with visual perception when making echo-based assessments of objects. read more

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