Document Detail


Effects of extreme tonotopic mismatches between bilateral cochlear implants on electric pitch perception: a case study.
MedLine Citation:
PMID:  21307775     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Lina A J Reiss; Mary W Lowder; Sue A Karsten; Christopher W Turner; Bruce J Gantz
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Ear and hearing     Volume:  32     ISSN:  1538-4667     ISO Abbreviation:  Ear Hear     Publication Date:    2011 Jul-Aug
Date Detail:
Created Date:  2011-06-22     Completed Date:  2011-10-27     Revised Date:  2014-09-13    
Medline Journal Info:
Nlm Unique ID:  8005585     Medline TA:  Ear Hear     Country:  United States    
Other Details:
Languages:  eng     Pagination:  536-40     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / physiology*
Brain Mapping
Cochlear Implantation / methods*
Cochlear Implants*
Electrodes, Implanted
Hearing Loss, Bilateral / physiopathology,  therapy*
Humans
Middle Aged
Pitch Perception / physiology*
Grant Support
ID/Acronym/Agency:
2P50 DC00242/DC/NIDCD NIH HHS; F32 DC009157/DC/NIDCD NIH HHS; F32 DC009157/DC/NIDCD NIH HHS; F32 DC009157-01/DC/NIDCD NIH HHS; F32 DC009157-02/DC/NIDCD NIH HHS; R01 DC000377/DC/NIDCD NIH HHS; R01 DC000377-18/DC/NIDCD NIH HHS; R01 DC000377-19/DC/NIDCD NIH HHS; R01DC000377/DC/NIDCD NIH HHS; RR00059/RR/NCRR NIH HHS
Comments/Corrections

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