| Relative weights for frequency glide detection using narrowband noise. | |
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MedLine Citation:
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PMID: 18529188 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Narrowband noise stimuli were used to derive relative weights for detecting frequency glides in a yes/no procedure. One stimulus set was restricted to the duration of the glide. For the second stimulus set, there were fringe noise bands preceding and following the glide. For both sets, the center frequency of the linear glide was either fixed at 1000 Hz or randomly chosen on each trial from the range of 800-1200 Hz. Relative weights as a function of time were derived using a linear model and the linear classification method [A. Ahumada, J. Vis., 2, 121-131 (2002)]. Sensitivity was better for the fixed- than random-frequency conditions, and weight patterns from the random-frequency conditions were less reliable than those obtained from the fixed-frequency conditions. The magnitudes of the relative weights tended to be larger for the second half of the stimulus, suggesting that subjects paid more attention to the later than the earlier parts of stimuli. In the random-frequency conditions, the linear model failed to account for subjects' performance unless the stimuli were expressed in terms of relative changes in frequency rather than absolute frequency. |
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Authors:
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Jinyu Qian; Virginia M Richards |
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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: 123 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2008 May |
Date Detail:
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Created Date: 2008-06-05 Completed Date: 2008-08-20 Revised Date: 2009-11-18 |
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: 2692-700 Citation Subset: IM |
Affiliation:
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Department of Psychology, 3401 Walnut Street, Suite 302C, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. qianj@sas.upenn.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Attention* Auditory Threshold* Humans Mathematics Models, Biological Noise* Perceptual Masking Psychoacoustics Radio Waves* Sensitivity and Specificity Sound Localization |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC002012/DC/NIDCD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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