| The extent to which a position-based explanation accounts for binaural release from informational masking. | |
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MedLine Citation:
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PMID: 18646988 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Detection was measured for a 500 Hz tone masked by noise (an "energetic" masker) or sets of ten randomly drawn tones (an "informational" masker). Presenting the maskers diotically and the target tone with a variety of interaural differences (interaural amplitude ratios and/or interaural time delays) resulted in reduced detection thresholds relative to when the target was presented diotically ("binaural release from masking"). Thresholds observed when time and amplitude differences applied to the target were "reinforcing" (favored the same ear, resulting in a lateralized position for the target) were not significantly different from thresholds obtained when differences were "opposing" (favored opposite ears, resulting in a centered position for the target). This irrelevance of differences in the perceived location of the target is a classic result for energetic maskers but had not previously been shown for informational maskers. However, this parallellism between the patterns of binaural release for energetic and informational maskers was not accompanied by high correlations between the patterns for individual listeners, supporting the idea that the mechanisms for binaural release from energetic and informational masking are fundamentally different. |
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Authors:
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Frederick J Gallun; Nathaniel I Durlach; H Steven Colburn; Barbara G Shinn-Cunningham; Virginia Best; Christine R Mason; Gerald Kidd |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 124 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2008 Jul |
Date Detail:
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Created Date: 2008-07-23 Completed Date: 2008-10-30 Revised Date: 2013-06-05 |
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: 439-49 Citation Subset: IM |
Affiliation:
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Hearing Research Center, Boston University, 635 Commonwealth Avenue, Boston, Massachusetts 02215, USA. frederick.gallun@va.gov |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Auditory Threshold Female Hearing / physiology Humans Noise* Perceptual Masking* |
| Grant Support | |
ID/Acronym/Agency:
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DC00100/DC/NIDCD NIH HHS; DC04545/DC/NIDCD NIH HHS; DC04663/DC/NIDCD NIH HHS; F32 DC006526/DC/NIDCD NIH HHS; F32 DC006526/DC/NIDCD NIH HHS; F32 DC006526-03/DC/NIDCD NIH HHS; P30 DC004663-03/DC/NIDCD NIH HHS; R01 DC000100-33/DC/NIDCD NIH HHS; R01 DC004545-08/DC/NIDCD NIH HHS; R03 DC008395/DC/NIDCD NIH HHS; R03 DC008395-02/DC/NIDCD NIH HHS |
| Comments/Corrections | |
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