|Binaural dichotic presentation to reduce the effects of spectral masking in moderate bilateral sensorineural hearing loss.|
|PMID: 22201526 Owner: NLM Status: MEDLINE|
|OBJECTIVE: The objective of the study was to evaluate the effectiveness of binaural dichotic presentation using comb filters with complementary magnitude responses, based on fixed bandwidth and auditory critical bandwidth, in improving speech perception by persons with moderate bilateral sensorineural hearing loss, and to assess its effect on localization of the sound source.
DESIGN AND STUDY SAMPLE: Listening tests involving consonant recognition and source direction identification were conducted on six normal-hearing subjects under simulated hearing loss and on eleven subjects with moderate bilateral sensorineural loss in quiet.
RESULTS: The tests on normal-hearing subjects showed higher recognition scores and smaller response times for the comb filters based on the auditory critical bandwidth. The tests using these comb filters on the hearing-impaired subjects resulted in an increase of 14%-31% (mean: 22%) in recognition scores and a significant decrease in response times, with no significant effect on the identification of the direction of broadband sound sources.
CONCLUSIONS: The results show that dichotic presentation may be useful for speech processing in binaural hearing aids.
|Pandurangarao N Kulkarni; Prem C Pandey; Dakshayani S Jangamashetti|
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|Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2011-12-27|
|Title: International journal of audiology Volume: 51 ISSN: 1708-8186 ISO Abbreviation: Int J Audiol Publication Date: 2012 Apr|
|Created Date: 2012-03-09 Completed Date: 2012-07-03 Revised Date: 2014-11-13|
Medline Journal Info:
|Nlm Unique ID: 101140017 Medline TA: Int J Audiol Country: England|
|Languages: eng Pagination: 334-44 Citation Subset: IM|
|APA/MLA Format Download EndNote Download BibTex|
Correction of Hearing Impairment* / psychology
Dichotic Listening Tests
Hearing Loss, Bilateral / diagnosis, psychology, rehabilitation*
Hearing Loss, Sensorineural / diagnosis, psychology, rehabilitation*
Persons With Hearing Impairments / psychology, rehabilitation*
Severity of Illness Index
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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