| Characteristics of the acoustic reflex in response to narrow bands of noise. | |
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MedLine Citation:
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PMID: 3680143 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Normal-hearing young adults (5 M, 6 F) were exposed monaurally for 3 min to narrow-band noises centered at .5, 1, and 4 kc/s, at 20 db above respective acoustic reflex (AR) thresholds. Strip-chart recordings (1 mm/sec) of middle-ear muscle contractions were graphed and evaluated for peak amplitude, latency, adaptation, and recovery from contraction. The relative AR amplitude was greatest to the .5-kc/s band and decreased with increasing stimulus frequency. Women exhibited greater AR than men in response to the lowest frequency of stimulation. The AR latency was significantly faster for the .5-kc/s band, with no sex difference. AR adaptation increased with increasing stimulus frequency and markedly so for women in response to the mid- and high-frequency bands; but for men at all frequencies there was AR enhancement even after 3 min of stimulation. Finally, there were no significant overall differences in AR relaxation time either for men or women, though there was a significant sex by frequency interaction such that at 4 kc/s men's recovery was faster. Implications of these results were discussed relative to the research data on sex differences in TTS at different frequencies. |
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Authors:
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C D Updike; A Epstein |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of auditory research Volume: 26 ISSN: 0021-9177 ISO Abbreviation: J Aud Res Publication Date: 1986 Jul |
Date Detail:
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Created Date: 1987-12-22 Completed Date: 1987-12-22 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0014024 Medline TA: J Aud Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 147-56 Citation Subset: IM; S |
Affiliation:
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Speech and Hearing Center, Indiana University, Bloomington 47401. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Adaptation, Physiological Adult Female Humans Male Muscles / physiology Reaction Time / physiology Reflex, Acoustic* Sex Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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