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Eye Health

27 May 2011

Blind use echoes to identify objects

Bats and dolphins aren't the only mammals that use echolocation - the ability to use sounds alone to identify objects and navigate unfamiliar surroundings. Researchers have found that people are also capable of echolocating.

Bats and dolphins aren't the only mammals that use echolocation - the ability to use sounds alone to identify objects and navigate unfamiliar surroundings. Researchers have found that people are also capable of echolocating.

"It is clear that echolocation enables blind people to do things that are otherwise thought to be impossible without vision, and in this way it can provide blind and vision-impaired people with a high degree of independence in their daily lives," the study's senior author, Mel Goodale, director of the Centre for Brain and Mind at the University of Western Ontario and Canada Research Chair in Visual Neuroscience, said.

Blind people use visual part of brain

 

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Megan Goodman qualified as an optometrist from the University of Johannesburg. She has recently completed a Masters degree in Clinical Epidemiology at Stellenbosch University. She has a keen interest in ocular pathology and evidence based medicine as well as contact lenses.

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