| Influence of place synchrony on detection of a sinusoid. | |
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MedLine Citation:
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PMID: 3558962 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A series of experiments was performed to study the ability of the ear to code the temporal envelope of a waveform as demonstrated by comodulation masking release (CMR). The stimulus for all experiments was composed of a tone-burst signal, a 100-Hz-wide masker band centered at the signal frequency, and a second 100-Hz-wide noise band of variable frequency, the cue band. The cue band had a temporal envelope which was either correlated with or independent of that of the masker. The signal was a 100-Hz tone burst for most experiments. For the monotic stimulus, the correlated cue band results in lowered signal detection thresholds over a range extending from around 2/3 oct below the signal frequency to 1/3 oct above that frequency. When measured dichotically, with the signal and masker band in one ear and the cue band in the opposite ear, that effective range is expanded but the detection threshold shifts are a bit smaller. The greatest CMR is observed when the stimulus is presented diotically. With regard to effects of level and frequency, our data show CMR increasing with increasing stimulus level for a cue band lower in frequency than the signal, but show little effect of level for a cue band higher in frequency. Similarly, CMR increases with increasing stimulus frequency when the cue band is lower in frequency, but shows little effect of frequency for a cue band higher in frequency. |
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Authors:
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M F Cohen; E D Schubert |
Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 81 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 1987 Feb |
Date Detail:
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Created Date: 1987-05-18 Completed Date: 1987-05-18 Revised Date: 2007-11-14 |
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: 452-8 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Auditory Fatigue
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physiology Auditory Perception / physiology* Auditory Threshold / physiology Functional Laterality / physiology Humans Sound Localization / physiology Time Factors |
| Grant Support | |
ID/Acronym/Agency:
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R01-16802//PHS HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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