| Overshoot using very short signal delays. | |
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MedLine Citation:
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PMID: 20968363 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The detectability of a 10-ms tone masked by a 400-ms wideband noise was measured as a function of the delay in the onset of the tone compared to the onset of the noise burst. Unlike most studies like this on auditory overshoot, special attention was given to signal delays between 0 and 45 ms. Nine well-practiced subjects were tested using an adaptive psychophysical procedure in which the level of the masking noise was adjusted to estimate 79% correct detections. Tones of both 3.0 and 4.0 kHz, at different levels, were used as signals. For the subjects showing overshoot, detectability remained approximately constant for at least 20-30 ms of signal delay, and then detectability began to improve gradually toward its maximum at about 150-200 ms. That is, there was a "hesitation" prior to detectability beginning to improve, and the duration of this hesitation was similar to that seen in physiological measurements of the medial olivocochlear (MOC) system. This result provides further support for the hypothesis that the MOC efferent system makes a major contribution to overshoot in simultaneous masking. |
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Authors:
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Dennis McFadden; Kyle P Walsh; Edward G Pasanen; Erin M Grenwelge |
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Publication Detail:
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Type: 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 Oct |
Date Detail:
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Created Date: 2010-10-25 Completed Date: 2011-02-11 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: 1915-21 Citation Subset: IM |
Affiliation:
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Department of Psychology and Center for Perceptual Systems, University of Texas, 1 University Station A8000, Austin, Texas 78712-0187, USA. mcfadden@psy.utexas.edu |
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 Auditory Pathways / physiology* Auditory Threshold Female Humans Male Noise / adverse effects* Perceptual Masking* Pitch Perception* Psychoacoustics Reaction Time Signal Detection, Psychological* Time Factors Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC000153/DC/NIDCD NIH HHS |
| Comments/Corrections | |
Erratum In:
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J Acoust Soc Am. 2011 Sep;130(3):1748 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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