| Minimum audible angles in children who use bilateral cochlear implants. | |
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MedLine Citation:
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PMID: 19355450 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Over 5000 children worldwide have received bilateral cochlear implants (CI) so that the auditory skills that rely on inputs to both ears, such as sound localization, may be improved. In this study, localization acuity was measured with minimum audible angles (MAA), the smallest discriminable distance between two locations in the frontal azimuth plane. It is unclear whether children who use bilateral CIs can attain MAAs comparable to their acoustically hearing peers, and if so, the extent to which exposure to bilateral hearing is necessary. Children having 3-36 months of bilateral experience participated. Stimuli were spondaic words presented at an overall level of 60 dB (+/- 4 dB rove). Every child with >5 yrs of auditory experience performed the task, whereas some of the children with <5 yrs of experience could not perform the task. In the former group, children with >2 yrs of bilateral experience were the best performers (MAA thresholds <15 degrees ), compared to children in the latter group who completed the task (MAA thresholds >30 degrees ). Results suggest that in children who receive bilateral CIs the two overall factors that impact performance are overall time in sound and amount of time with bilateral experience. [Work supported by NIH DC R01008365.]. |
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Authors:
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Cynthia M Zettler; Shelly Godar; Ruth Y Litovsky |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 125 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2009 Apr |
Date Detail:
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Created Date: 2009-04-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 2723 Citation Subset: IM |
Affiliation:
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Waisman Ctr., Univ. of Wisconsin-Madison, 1500 Highland Ave., Madison, WI 53705. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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