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Prototype Retainer Could Help Hearing-Impaired ‘Listen’ With Their Tongues




Popular Science
 Loren Grush
January 14,2015

For individuals with significant hearing loss, cochlear implants have proven to be an incredible tool for regaining some sense of sound. Yet the small, electronic device, which works by stimulating an individual’s auditory nerve, requires both surgical implantation and a hefty wallet. (The combination of the device and insertion procedure can cost upwards of $40,000.)

Now, in the quest to find more practical solutions for the hearing impaired, researchers at Colorado State University are turning to an unlikely organ for help: the tongue. The three-person research team has developed a Bluetooth-enabled microphone earpiece along with a smart retainer that fits on a person’s tongue. The two devices work in tandem to strengthen a partially deaf person's ability to recognize words.

Make no mistake: The tongue is not some magical conduit to the organs in your ear. The retainer/earpiece system works by reprogramming areas of the brain, helping them to interpret various sensations on the tongue as certain words.

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