| Cochlear implant characteristics and speech perception skills of adolescents with long-term device use. | |
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MedLine Citation:
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PMID: 20616759 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Updated cochlear implant technology and optimized fitting can have a substantial impact on speech perception. The effects of upgrades in processor technology and aided thresholds on word recognition at soft input levels and sentence recognition in noise were examined. We hypothesized that updated speech processors and lower aided thresholds would allow improved recognition of soft speech without compromising performance in noise. STUDY DESIGN: 109 teenagers who had used a Nucleus 22-cochlear implant since preschool were tested with their current speech processor(s) (101 unilateral and 8 bilateral): 13 used the Spectra, 22 the ESPrit 22, 61 the ESPrit 3G, and 13 the Freedom. MAIN OUTCOME MEASURES: The Lexical Neighborhood Test (LNT) was administered at 70 and 50 dB SPL and the Bamford Kowal Bench sentences were administered in quiet and in noise. Aided thresholds were obtained for frequency-modulated tones from 250 to 4,000 Hz. Results were analyzed using repeated measures analysis of variance. RESULTS: Aided thresholds for the Freedom/3G group were significantly lower (better) than the Spectra/Sprint group. LNT scores at 50 dB were significantly higher for the Freedom/3G group. No significant differences between the 2 groups were found for the LNT at 70 or sentences in quiet or noise. CONCLUSION: Adolescents using updated processors that allowed for aided detection thresholds of 30 dB HL or better performed the best at soft levels. The BKB in noise results suggest that greater access to soft speech does not compromise listening in noise. |
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Authors:
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Lisa S Davidson; Ann E Geers; Christine Brenner |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology Volume: 31 ISSN: 1537-4505 ISO Abbreviation: Otol. Neurotol. Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-09-27 Completed Date: 2011-01-28 Revised Date: 2011-08-25 |
Medline Journal Info:
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Nlm Unique ID: 100961504 Medline TA: Otol Neurotol Country: United States |
Other Details:
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Languages: eng Pagination: 1310-4 Citation Subset: IM |
Affiliation:
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Washington University School of Medicine, St. Louis, Missouri 63110, USA. davidsonl@ent.wustl.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Analysis of Variance Auditory Threshold / physiology* Cochlear Implantation Cochlear Implants* Hearing Loss / physiopathology, surgery* Humans Patient Satisfaction Speech Perception / physiology* Treatment Outcome |
| Grant Support | |
ID/Acronym/Agency:
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K23 DC008294/DC/NIDCD NIH HHS; R01 DC0008335/DC/NIDCD NIH HHS; R01 DC008335-03/DC/NIDCD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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