| Temporary hearing loss from exposure to moderately intense tones in rhesus monkeys. | |
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MedLine Citation:
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PMID: 7325307 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The amount and duration of temporary threshold shift produced by exposure to moderately loud sounds were quantitatively examined in rhesus monkeys using a simple, behavioral reaction-time procedure. Subjects were exposed to pure tones (100 dB SPL) either at the threshold test frequency or half an octave below (-1/2 OCT) the test frequency, usually for a duration of 3-minutes. Many features of the results were comparable to those observed in human subjects following exposure to similar sounds: (1) both the magnitude and the time course of recovery from the hearing loss were a function of the frequency and duration of the exposure stimulus with higher-frequency and longer-lasting stimuli producing greater threshold shifts and longer recovery time courses; (2) recovery time courses were monotonic and approximately exponential; (3) at low- and mid-frequency regions of hearing, intense stimulation at the test frequency and at -1/2 OCT produced similar threshold shifts and durations of recovery, while for high-frequency hearing -1/2 OCT stimuli always yielded greater losses and longer recovery periods; (4) although the peak hearing loss was either at , or a half octave above, the exposure frequency, the overall threshold-shift pattern was always assymmetrically distributed toward higher frequencies; (5) alterations in functions relating response latency to stimulus intensity were demonstrable. These psychophysical experiments form a framework that will permit further investigations into the physiologic basis of temporary threshold shift in an animal model highly similar to man. |
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Authors:
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B L Lonsbury-Martin; G K Martin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: American journal of otolaryngology Volume: 2 ISSN: 0196-0709 ISO Abbreviation: Am J Otolaryngol Publication Date: 1981 Nov |
Date Detail:
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Created Date: 1982-03-26 Completed Date: 1982-03-26 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8000029 Medline TA: Am J Otolaryngol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 321-35 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation
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methods* Animals Behavior, Animal Disease Models, Animal Hearing Loss, Noise-Induced / physiopathology* Macaca mulatta Remission, Spontaneous |
| Grant Support | |
ID/Acronym/Agency:
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NS05818/NS/NINDS NIH HHS; NS08181/NS/NINDS NIH HHS; RR00166/RR/NCRR NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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