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Echolocation means that a person adequately processes the information emitted by the reflection of sound. Bats and dolphins depend on this. The principle is simple: a sound source sends sound waves that reflect off the objects in the environment. The echo has the same characteristics as the object from which it is reflected so for a well-trained listener, it is recognizable and useful.

Learning echolocation

Visio clients can learn this new technique, which enables a blind person to  hear precisely where there are walls, buildings and doors. This is done by clicking the tongue. The clicking sound of the tongue reflects off the things that the blind person wants ‘to see’, for example a building. According to the echo, the person can ‘hear’ how big the building is and where it is located. This increases mobility.

It emerges that echolocation contributes greatly to improve orientation and mobility in partially sighted and blind people.

For more information, please contact the Visio Rehabilitation & Advice location closest to you.

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