| Fricative perception with and without hearing aids, an event-related potential study. | |
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MedLine Citation:
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PMID: 20330723 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The present study used auditory event-related potential (ERP) measures to investigate how the adult brain differentially processes fricative speech sounds with and without the use of a hearing aid. Synthetic stimuli for sa, sha, as, and ash were created to control for the spectral cues in the vowel and consonant portions based on naturally recorded speech. ERP responses were recorded for each sound in an unaided and a hearing aid condition using a randomized block design. At least 160 trials per stimulus were averaged for each sound per subject. The results indicated that (1) the ERP responses in the unaided condition significantly differed from the aided condition, (2) N1 peak amplitudes and latencies to s and sh significantly differed in both unaided and aided conditions as well as in syllable-initial and syllable final positions, and (3) phonological context significantly affected N1-P2 responses. Despite some minor differences, these results are consistent with our previous ERP study using natural speech stimuli, which suggests that amplification through hearing aids alters neural coding of acoustic features in speech sounds. [This work was supported by the Graduate Research Partnership Program and Grant-in-Aid, University of Minnesota.]. |
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Authors:
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Sharon Miller; Yang Zhang |
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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: 127 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-03-24 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: 1903 Citation Subset: IM |
Affiliation:
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Dept. of Speech-Lang.-Hearing Sci., Univ. of Minnesota, Minneapolis, MN 55455. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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