Going bilateral

Our bodies are designed to experience sound in stereo, using two ears to receive sound from the world around us. Just as we need two eyes to see the whole picture, we need two ears to hear the whole story.

There is now a new standard of care in cochlear implantation - one that is completely changing the way we think about hearing potential. It's a process that will open the doors to more natural hearing, allowing you to explore the world of sound around you. It's called bilateral implantation and it's the key to hearing the whole story.

How does binaural hearing work?

To fully appreciate the difference between hearing with one ear versus two, it helps to understand how the brain naturally processes sound.

During childhood, our brains develop a complex neural network in response to sounds received by both ears. As sound reaches the listener from one side, it is heard first in the closer ear and then the other. Although the difference in volume heard by both ears is often very minute, our brains are able to compare the sounds, allowing the listener to focus on and determine the direction of the sounds.

Unilateral vs bilateral hearing

Unilateral

When sound is received by only one ear, the brain does not receive the sound from the second ear which is necessary to distinguish distance or direction. This makes it more difficult to locate sound or focus on a single voice in a crowd.

Bilateral

Just as we use two eyes to see in three dimensions, we use two ears to perceive the world of sound around us. It helps us to "map" sounds in space, to pick out soft or distant speech, and to separate a single voice from the surrounding background noise.

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