Benefits And Risks Of Cochlear Implants

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On each stimulation cycle a subset of 6 to 10 intracochlear electrodes are stimulated non-simultaneously at a rate that varies adaptively between 180–300 pulses per second depending on the number of spectral peaks identified. Many more people with hearing loss could benefit from cochlear implants, but myths about these devices persist. Learn the truth about cochlear implants — and whether you might be a candidate. Jacob et al. published the effects of cochlear implant on the quality of hearing in unilateral deafness.

Like all commercially available cochlear implant systems, the Clarion speech processor is flexible, allowing the user to listen to a range of different processing strategies. The current Clarion body worn speech processor, the Platinum Sound Processor, is smaller than the Nucleus body worn processors. The Clarion CII BTE is somewhat more efficient, using custom designed rechargeable batteries that average anywhere from 8 to 11 hours of use, depending on the individual’s processing strategy and required stimulation levels.

‘What Did You Say?’ How Getting Help for Hearing Loss Can Boost Your Quality of Life

Peripheral neural responses such as the ECAP will exhibit adaptation effects and decrease in amplitude as the rate of stimulation is increased. Perceptually, however, the loudness of a stimulus will increase as the stimulation rate increases. This is due to the fact that the brain is able to integrate neural information over time. It is not surprising, therefore, that ECAP thresholds for an 80 Hz pulse train will exceed behavioral thresholds for the high rate stimulus used to program the speech processor of the cochlear implant. Additionally, temporal integration can vary across individuals (Brown et al., 1999).

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Journal of Speech, Language, and Hearing Research, 39, 261–277. Speech intelligibility of children with cochlear implants. Koch, M. E., Wyatt, J. R., Francis, H. W., & Niparko, J. K.

However, these powerful tools can help those with severe or profound hearing loss hear and process sounds better so they can stay engaged in all aspects of life. Understanding how cochlear implants work, the adjustment process, and how they can be considered ableist is important for both hearing-impaired individuals and hearing parents of a child with hearing loss to make an informed decision. Sound impressions from an implant differ from normal hearing, according to people who could hear before they became deaf. At first, users describe the sound as “mechanical”, “technical”, or “synthetic”.

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A cochlear implant does not restore normal hearing, but it can help people to understand speech with less reliance on lip reading and to perceive sounds. The decision to get cochlear implants requires a high level of commitment. With cochlear implants, a surgeon—typically an otolaryngologist —places tiny electrodes inside the cochlea to produce electrical conversions that are sent to the brain. This process enables the bypassing of manual movement of the cilia cells. “The electrodes produce the electrical current up the auditory pathway for interpretation by the brain,” says Soiles.

Auditory therapy and cochlear implant reprogramming may improve performance. The Cochlear Implant Center offers a comprehensive approach to cochlear implantation and rehabilitation, including one-on-one therapy to help patients learn to use cochlear implants. We perform hundreds of cochlear implant surgeries each year on adults and children, lead clinical trials and provide state-of-the-art care. Several studies have examined the effect of communication mode (signed/total communication or oral communication) on speech outcomes. Osberger and colleagues (Osberger et al., 1994) reported better speech production outcomes for children with oral communication backgrounds than those from total communication programs.

Modiolar placement also effectively decreases power consumption and enhances place specificity. The intracochlear electrode contacts are spaced logarithmically along the array with electrodes at the base being more widely separated than electrodes at the apex. The contacts are half bands rather than the full bands used with the Nucleus CI24M device and all earlier versions of this implant. Additionally, the packaging of the internal receiver/stimulator of the Nucleus 24 Contour is thinner and more flexible that earlier versions resulting in a lower profile on the skull.

Annals of Otology, Rhinology, & Laryngology, 166, 185–187. Thus, one method of using this technology with very young children is to slowly increase the programming stimulus to the ECAP threshold and begin working on conditioning the child to respond at that level. Additionally, ECAP thresholds can be used to cross check the results of behavioral testing. Very young children may let the stimulus become elevated before responding. ECAP thresholds should not be recorded at levels where the programming stimulus is inaudible. If this occurs, the behavioral thresholds should be rechecked and/or decreased to a level that is just less than the ECAP threshold.

Aural rehabilitation specialists and speech-language pathologists are members of some cochlear implant teams. Other teams may not have these professionals on staff; in that case, aural rehabilitation and speech-language pathology may be provided by private therapists or by school personnel. The Clarion is the only cochlear implant system capable of simultaneous stimulation of multiple electrodes within the cochlea. It also is the only device that can stimulate with analog waveforms. Like other commercially available cochlear implant systems, the Clarion offers a wide range of speech processing strategies. Clarion was the first commercially available implant system to implement CIS processing in 1991.