How Blind People Can Use Echolocation To See Like Bats

Echolocation is the ability to 'see' with sound using sound to sense the surrounding area and detect obstacles. Usually bats and a few marine mammals exhibit echolocation. But, in recent research it was determined that, like these animals, blind people could also see with their 'natural' echolocation ability.
According to an article published in the May 25, 2011 issue of the scientific journal PLos ONE, researchers at The University of Western Ontario’s Centre for Brain and Mind have discovered that blind people can use echolocation to determine important information about surrounding objects – their size, shape and movement – with great accuracy. The question is: how do they use their ears to 'see' and navigate their environment. To better understand human echolocation, let us first understand echolocation in animals. The best example of echolocation is found in bats.

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