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Cochlear impant

Yıldırım Ahmet Bayazıt, Şenay Altınyay, Raşit Cevizci
OBJECTIVE: To evaluate the results of delayed cochlear impantion performed in childhood and puberty in the light of speech language pathology assessments. METHODS: Totally 49 children with prelingual profound hearing loss were included in the study. All children received a cochlear implant between the ages of 5 and 19 years (Group 1 aged between 5 and 9 years, group 2 aged between 10 and 14 years, group 3 aged between and 15 and 19 years). The MAIS, MUSS and PLS-4 scores of children were evaluated one month before, and one year and two years after the operation...
February 2015: International Journal of Pediatric Otorhinolaryngology
Bradley W Tuft, Linjing Xu, Scott P White, Alison E Seline, Andrew M Erwood, Marlan R Hansen, C Allan Guymon
Overcoming signal resolution barriers of neural prostheses, such as the commercially available cochlear impant (CI) or the developing retinal implant, will likely require spatial control of regenerative neural elements. To rationally design materials that direct nerve growth, it is first necessary to determine pathfinding behavior of de novo neurite growth from prosthesis-relevant cells such as spiral ganglion neurons (SGNs) in the inner ear. Accordingly, in this work, repeating 90° turns were fabricated as multidirectional micropatterns to determine SGN neurite turning capability and pathfinding...
July 23, 2014: ACS Applied Materials & Interfaces
K Burian
For 20 years direct electrical stimulation has been used in cases of severe bilateral hearing loss or complete deafness to mediate acoustic percepts. The relevant literature is reviewed. While these attempts were initially thought to be unphysiological and unsuited for transferring speech, acoustic sensations were successfully conveyed even with the very simple unichannel electrodes through percutaneous signal transfer. Patients fitted with such simple systems were able to hear and distinguish environmental noise and speech, their lip reading as well as their speech improved...
1979: Archives of Oto-rhino-laryngology
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