| Independence of frequency channels in auditory temporal gap detection. | |
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MedLine Citation:
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PMID: 11144587 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The ability of listeners to detect a temporal gap in a 1600-Hz-wide noiseband (target) was studied as a function of the absence and presence of concurrent stimulation by a second 1600-Hz-wide noiseband (distractor) with a nonoverlapping spectrum. Gap detection thresholds for single noisebands centered on 1.0, 2.0, 4.0, and 5.0 kHz were in the range from 4 to 6 ms, and were comparable to those described in previous studies. Gap thresholds for the same target noisebands were only modestly improved by the presence of a synchronously gated gap in a second frequency band. Gap thresholds were unaffected by the presence of a continuous distractor that was either proximate or remote from the target frequency band. Gap thresholds for the target noiseband were elevated if the distractor noiseband also contained a gap which "roved" in time in temporal proximity to the target gap. This effect was most marked in inexperienced listeners. Between-channel gap thresholds, obtained using leading and trailing markers that differed in frequency, were high in all listeners, again consistent with previous findings. The data are discussed in terms of the levels of the auditory perceptual processing stream at which the listener can voluntarily access auditory events in distinct frequency channels. |
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Authors:
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D P Phillips; S E Hall |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 108 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2000 Dec |
Date Detail:
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Created Date: 2000-12-28 Completed Date: 2001-02-22 Revised Date: 2006-12-27 |
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: 2957-63 Citation Subset: IM |
Affiliation:
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Department of Psychology, Dalhousie University, Halifax, Nova Scotia, Canada. ears@is.dal.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Attention* Female Humans Male Pitch Discrimination* Psychoacoustics Sensory Thresholds Sound Spectrography Time Perception* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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