| The enhancement effect: evidence for adaptation of inhibition using a binaural centering task. | |
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MedLine Citation:
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PMID: 21476664 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The enhancement effect is consistently shown when simultaneously masked stimuli are preceded by the masker alone, with a reduction in the amount of masking relative to when that precursor is absent. One explanation for this effect proposed by Viemeister and Bacon [(1982). J. Acoust. Soc. Am. 71, 1502-1507] is the adaptation of inhibition, which predicts that an enhanced component (the "target") will be effectively more intense within the auditory system than one that has not been enhanced. Forward masking studies have indicated this effect of increased gain; however, other explanations of the enhancement effect have also been suggested. In order to provide an alternative measure of the amount of effective gain for an enhanced target, a subjective binaural centering task was used in which listeners matched the intensities of enhanced and unenhanced 2-kHz tones presented to opposite ears to produce a centered stimulus. The results showed that the enhancement effect produces an effective 4-5 dB increase in the level of the enhanced target. The enhancement effect was also measured using other enhancement paradigms which yielded similar results over a range of levels for the target, supporting an account based on adaptation of inhibition. |
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Authors:
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Andrew J Byrne; Mark A Stellmack; Neal F Viemeister |
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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: 129 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-04-11 Completed Date: 2011-08-16 Revised Date: 2012-04-02 |
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: 2088-94 Citation Subset: IM |
Affiliation:
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Department of Psychology, University of Minnesota, Minneapolis, Minnesota 55455, USA. byrn0050@umn.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Adaptation, Physiological / physiology* Adult Audiometry, Pure-Tone Auditory Threshold / physiology* Female Humans Male Middle Aged Neural Inhibition / physiology* Perceptual Masking / physiology Psychoacoustics* Sound Localization / physiology* Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC 00683/DC/NIDCD NIH HHS; R01 DC000683-21/DC/NIDCD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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