Journal article
Comparison of psychophysical and electrophysiologic measures of channel interaction
International Congress series, Vol.1273(C), pp.44-47
2004
DOI: 10.1016/j.ics.2004.09.016
Abstract
All multi-channel cochlear implants operate on the premise that each electrode stimulates relatively independent neural populations. However, it is likely that the population of nerve fibers that responds to stimulation on one electrode is not completely distinct from the population of fibers that responds to stimulation on another electrode. The extent of channel interaction in a particular cochlear implant has the potential to significantly impact performance. We have been examining channel interaction physiologically using the electrically evoked compound action potential (ECAP). In this study, we compare physiological measures to psychophysical measures obtained using a forward masking paradigm. We hypothesize that the physiological and psychophysical measures of channel interaction should be related. Preliminary data from nine adult Nucleus 24 patients suggest such a correlation may exist.
Details
- Title: Subtitle
- Comparison of psychophysical and electrophysiologic measures of channel interaction
- Creators
- C.P Etler - Department of Otolaryngology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, 21201 PFP, Iowa City, IA 52242-1078, United StatesP.J Abbas - Department of Otolaryngology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, 21201 PFP, Iowa City, IA 52242-1078, United StatesM.L Hughes - Boys Town National Research Hospital, Omaha, NE, United StatesC.J Brown - Department of Otolaryngology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, 21201 PFP, Iowa City, IA 52242-1078, United StatesS.M Dunn - Department of Otolaryngology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, 21201 PFP, Iowa City, IA 52242-1078, United StatesL.J Zubrod - Department of Otolaryngology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, 21201 PFP, Iowa City, IA 52242-1078, United StatesT.L Van Voorst - Department of Otolaryngology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, 21201 PFP, Iowa City, IA 52242-1078, United States
- Resource Type
- Journal article
- Publication Details
- International Congress series, Vol.1273(C), pp.44-47
- Publisher
- Elsevier B.V
- DOI
- 10.1016/j.ics.2004.09.016
- ISSN
- 0531-5131
- eISSN
- 1873-6157
- Language
- English
- Date published
- 2004
- Academic Unit
- Communication Sciences and Disorders; Otolaryngology
- Record Identifier
- 9984002483202771
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