| Evaluating auditory brainstem responses to different chirp stimuli at three levels of stimulation. | |
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MedLine Citation:
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PMID: 20649217 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Auditory brainstem responses (ABRs) are recorded in ten normal-hearing adults (20 ears) in response to a standard 100 micros click and five chirps having different durations (sweeping rates). The chirps are constructed from five versions of a power function model of the cochlear-neural delay that is based on derived-band ABR latencies from N=81 normal-hearing adults [Elberling, C., and Don, M. (2008). J. Acoust. Soc. Am. 124, 3022-3037]. The click and the chirps have identical amplitude spectra and, in general, for each of the three stimulus levels 60, 40, and 20 dB nHL, the ABRs to the chirps are significantly larger than the ABRs to the click. However, the shorter chirps are the most efficient at higher levels of stimulation whereas the longer chirps are the most efficient at lower levels. It is suggested that two different mechanisms are responsible for these observed changes with stimulus level--(1) upward spread of excitation at higher levels, and (2) an increased change of the cochlear-neural delay with frequency at lower levels. |
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Authors:
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Claus Elberling; Johannes Callø; Manuel Don |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 128 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-07-23 Completed Date: 2010-11-02 Revised Date: 2012-04-27 |
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: 215-23 Citation Subset: IM |
Affiliation:
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William Demant Holding A/S, Kongebakken 9, DK-2765 Smørum, Denmark. ce@demant.dk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Adult Audiometry, Pure-Tone Auditory Pathways / physiology* Auditory Threshold Brain Stem / physiology* Evoked Potentials, Auditory, Brain Stem* Female Humans Male Reaction Time Time Factors Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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2R01DC003592/DC/NIDCD NIH HHS; R01 DC003592-08/DC/NIDCD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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