| Uncomfortable loudness levels in experienced unilateral and bilateral hearing aid users: evidence of adaptive plasticity following asymmetrical sensory input? | |
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MedLine Citation:
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PMID: 20438301 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Munro and Trotter [Inter J Audiol 45, 684-688, 2006] reported an asymmetry in uncomfortable loudness levels (ULLs) in a preliminary study using 12 experienced unilateral hearing aids users. The aim of the present study was to investigate ULLs in a larger sample of listeners with unilateral and bilateral hearing aid experience. Participants were adults with symmetrical high-frequency hearing impairment. There were 48 listeners with unilateral experience, 13 listeners with bilateral experience and a control group of 47 listeners with no hearing aid experience. The minimum duration of hearing aid experience was 2 years. ULLs were measured at 0.5, 1, 2 and 4 kHz. The unilateral group showed a statistically significant inter-aural asymmetry of 3-5 dB. Compared to the controls, there was a non-significant trend of higher ULLs in the fitted ear and lower ULLs in the not-fitted ear. ULLs in the bilateral group were symmetrical and similar to the control group. The findings suggest that changes in ULL may be a feature of asymmetrical sensory input and are consistent with a central gain mechanism. |
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Authors:
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Ann-Marie Hamilton; Kevin J Munro |
Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: International journal of audiology Volume: 49 ISSN: 1708-8186 ISO Abbreviation: Int J Audiol Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-08-16 Completed Date: 2010-11-30 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101140017 Medline TA: Int J Audiol Country: England |
Other Details:
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Languages: eng Pagination: 667-71 Citation Subset: IM |
Affiliation:
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School of Psychological Sciences, University of Manchester, Manchester, UK. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Adaptation, Psychological Aged Aged, 80 and over Audiometry, Pure-Tone Auditory Threshold Case-Control Studies Feedback, Sensory* Female Hearing Aids* Hearing Impaired Persons / psychology, rehabilitation* Hearing Loss, Bilateral / psychology, rehabilitation* Hearing Loss, Unilateral / psychology, rehabilitation* Humans Loudness Perception* Male Middle Aged Neuronal Plasticity* Rehabilitation of Hearing Impaired* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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