Effects of high-rate pulse trains on electrode discrimination in cochlear implant users.
Overcoming issues related to abnormally high neural synchrony in response to electrical stimulation is one aspect in improving hearing with a cochlear implant. Desynchronization of electrical stimuli have shown benefits in neural encoding of electrical signals and improvements in psychophysical task...
| Publicado en: | Trends in Amplification Vol. 13; no. 2; pp. 76 - 87 |
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| Autor principal: | |
| Formato: | research tables/charts Journal Article |
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Sage Publications Inc.
Jun2009
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105542678&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105542678 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10847138 KZB jtl: Trends in Amplification issn: 10847138 maglogo: N pubinfo: dt: Jun2009 vid: 13 iid: 2 pid: 30348 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 105542678 2010299979 10.1177/1084713809336739 NLM19447763 105542678 ppf: 76 ppct: 11 formats: fmt: @attributes: type: P tig: atl: Effects of high-rate pulse trains on electrode discrimination in cochlear implant users. aug: au: Runge-Samuelson CL affil: Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee. crunge@mcw.edu. sug: subj: Acoustic Stimulation Auditory Perception Cochlear Implant Electric Stimulation Equipment Design Rehabilitation of Persons with Hearing Loss Signal Processing, Computer Assisted Methods Adult Aged Aged, 80 and Over Assistive Technology Auditory Threshold Cochlear Implant Programming Electrodes Female Funding Source Male Middle Age Spectral Analysis Treatment Outcomes Human Adult: 19-44 years Aged: 65+ years Aged, 80 & over Middle Aged: 45-64 years Female Male ab: Overcoming issues related to abnormally high neural synchrony in response to electrical stimulation is one aspect in improving hearing with a cochlear implant. Desynchronization of electrical stimuli have shown benefits in neural encoding of electrical signals and improvements in psychophysical tasks. In the present study, 10 participants with either CII or HiRes 90k Advanced Bionics devices were tested for the effects of desynchronizing constant-amplitude high-rate (5,000 Hz) pulse trains on electrode discrimination of sinusoidal stimuli (1,000 Hz). When averaged across the sinusoidal dynamic range, overall improvements in electrode discrimination with high-rate pulses were found for 8 of 10 participants. This effect was significant for the group (p = .003). Nonmonotonic patterns of electrode discrimination as a function of sinusoidal stimulation level were observed. By providing additional spectral channels, it is possible that clinical implementation of constant-amplitude high-rate pulse trains in a signal processing strategy may improve performance with the device. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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