| Recovery from on- and off-frequency forward masking in listeners with normal and impaired hearing. | |
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MedLine Citation:
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PMID: 20649220 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to investigate the possible mechanisms underlying an effect reported earlier [Wojtczak, M., and Oxenham, A. J. (2009). J. Acoust. Soc. Am. 125, 270-281] in normal-hearing listeners, whereby recovery from forward masking can be slower for off-frequency tonal maskers than for on-frequency tonal maskers that produce the same amount of masking at a 0-ms masker-signal delay. To rule out potential effects of confusion between the tonal signal and tonal masker, one condition used a noise-band forward masker. To test whether the effect involved temporal build-up, another condition used a short-duration (30-ms) forward masker. To test whether the effect is dependent on normal cochlear function, conditions were tested in five listeners with sensorineural hearing loss. For the 150-ms noise maskers, the data from normal-hearing listeners replicated the findings from the previous study that used tonal maskers. In contrast, no significant difference in recovery from on- and off-frequency masking was observed for the 30-ms tonal maskers in normal-hearing listeners, or for the 150-ms tonal maskers in hearing-impaired listeners. Overall, the results are consistent with a mechanism based on efferent feedback that affects the recovery from forward masking in the normal auditory system. |
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Authors:
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Magdalena Wojtczak; Andrew J Oxenham |
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 Jul |
Date Detail:
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Created Date: 2010-07-23 Completed Date: 2010-11-02 Revised Date: 2011-08-01 |
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: 247-56 Citation Subset: IM |
Affiliation:
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Department of Psychology, University of Minnesota, 75 East River Road, Minneapolis, Minnesota 55455, USA. wojtc001@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 Adult Aged Audiometry Auditory Pathways / physiopathology* Auditory Perception* Auditory Threshold Case-Control Studies Cochlea / physiopathology Feedback, Sensory Female Hearing Impaired Persons* / psychology Hearing Loss, Sensorineural / physiopathology*, psychology Humans Male Middle Aged Perceptual Masking* Recovery of Function Signal Detection, Psychological Time Factors Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC 03909/DC/NIDCD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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