Hearing restored in rats by modifying ear cells to respond to light.docx

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Hearing restored in rats by modifyingear cells to respond to lightCochlear implants that restore hearing could be improved by geneticallymodifying the nerve cells in people’s ears so that they respond to lightinstead of electricity, a study in rats has shown.“This is so much better than what we currently have with electricalimplants,” says Tobias Moser at the University Medical Center Göttingen inGermany.Our hearing relies on hair cells inside the cochlea of our ears detectingsounds of different frequencies and then stimulating the right auditorynerve cells. Damage to these hair cells is a common cause of deafness.Cochlear implants can partly restore hearing by electrically stimulatingnerve cells, bypassing the hair cells. But the electrical signals stimulate lotsof nerve cells at once, meaning the resulting sound is less detailed – theaudio equivalent of a low-resolution image.People with cochlear implants may not understand speech in noisy

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Term
Summer
Professor
NoProfessor
Tags
Hearing impairment, Cochlear Implants, Tobias Moser

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