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Journal of the Acoustical Society of America / Volume 131 / Issue 2 / LETTERS TO THE EDITOR

Evidence of the enhancement effect in electrical stimulation via electrode matching (L)

J. Acoust. Soc. Am. Volume 131, Issue 2, pp. 1007-1010 (2012); (4 pages)

Matthew J. Goupell and Mitchell J. Mostardi

Waisman Center, University of Wisconsin, 1500 Highland Avenue, Madison, Wisconsin 53705

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The ability to match a pulsing electrode during multi-electrode stimulation through a research interface was measured in seven cochlear-implant (CI) users. Five listeners were relatively good at the task and two could not perform the task. Performance did not vary as a function of the number of electrodes or stimulation level. Performance on the matching task was not correlated to performance on an electrode-discrimination task. The listeners may have experienced the auditory enhancement effect, and this may have implications for speech recognition in noise for CI users.

© 2012 Acoustical Society of America

ACKNOWLEDGMENTS

We thank Cochlear Ltd. for use of the NIC. We thank Alan Kan, Neal Viemeister, and two anonymous reviewers for discussions on this topic and suggestions on previous versions of this work. This work was supported by NIH Grants No. K99/R00 DC010206 (M.J.G.), No. R01 DC003083 (Litovsky), and No. P30 HD03352 (Waisman core).

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT 1: MATCHING
    1. Listeners and equipment
    2. Stimuli
    3. Procedure
    4. Results
  3. EXPERIMENT 2: DISCRIMINATION
  4. DISCUSSION

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KEYWORDS and PACS

Keywords

cochlear implants, electrodes, hearing, speech, speech recognition

PACS

  • 43.66.Ts

    Auditory prostheses, hearing aids

  • 43.66.Mk

    Temporal and sequential aspects of hearing; auditory grouping in relation to music

  • 43.66.Hg

    Pitch

  • 43.66.Dc

    Masking

ARTICLE DATA

History
Received 25 Apr 2011
Accepted 17 Nov 2011
Revised 15 Nov 2011
Digital Object Identifier
http://dx.doi.org/10.1121/1.3672650

PUBLICATION DATA

ISSN

0001-4966 (print)  

Publisher

$abstract.society.value is a Member of CrossRef Acoustical Society of America

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