| Effects of Extreme Tonotopic Mismatches Between Bilateral Cochlear Implants on Electric Pitch Perception: A Case Study. | |
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MedLine Citation:
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PMID: 21307775 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVES:: Recent studies suggest that pitch perceived through cochlear implants (CIs) changes with experience to minimize spectral mismatches between electric and acoustic hearing. This study aimed to test whether perceived spectral mismatches are similarly minimized between two electric inputs. DESIGN:: Pitch perception was studied in a subject with a 10-mm CI in one ear and a 24-mm CI in the other ear. Both processors were programmed to allocate information from the same frequency range of 188-7938 Hz, despite the large differences in putative insertion depth and stimulated cochlear locations between the CIs. RESULTS:: After 2 and 3 years of experience, pitch-matched electrode pairs between CIs were aligned closer to the processor-provided frequencies than to cochlear position. CONCLUSIONS:: Pitch perception may have adapted to reduce perceived spectral discrepancies between bilateral CI inputs, despite 2-3 octave differences in tonotopic mapping. |
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Authors:
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Lina A J Reiss; Mary W Lowder; Sue A Karsten; Christopher W Turner; Bruce J Gantz |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-2-8 |
Journal Detail:
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Title: Ear and hearing Volume: - ISSN: 1538-4667 ISO Abbreviation: - Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-2-10 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8005585 Medline TA: Ear Hear Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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1Department of Communication Sciences and Disorders, The University of Iowa; and 2Department of Otolaryngology-Head and Neck Surgery, The University of Iowa Hospitals and Clinics, Iowa City, Iowa. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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