| The origin of binaural interaction in the modulation domain. | |
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MedLine Citation:
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PMID: 20370028 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of these experiments was to assess whether the detection of diotic 5 Hz "probe" modulation of a 4000 Hz sinusoidal carrier was influenced by binaural interaction of "masker" modulators presented separately to each ear and applied to the same carrier. A 50 Hz masker modulator was applied to one ear and the masker modulator applied to the other ear had a frequency of 55 or 27.5 Hz. The starting phase of the masker modulators was fixed, and the starting phase of the probe modulator was varied. For both pairs of masker modulators, the threshold for detecting the probe modulation varied slightly but significantly with probe starting phase. Further experiments measuring probe detectability as a function of probe modulation depth did not provide clear evidence to support the idea that the internal representations of the masker modulators interacted binaurally to produce a weak distortion component in the internal representation of the modulation at a 5 Hz frequency. Also, the obtained phase effects were not correctly predicted using a model based on short-term loudness fluctuations. |
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Authors:
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Aleksander Sek; Brian R Glasberg; Brian C J Moore |
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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: 127 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-07 Completed Date: 2010-07-06 Revised Date: - |
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: 2451-60 Citation Subset: IM |
Affiliation:
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Department of Experimental Psychology, University of Cambridge, Downing Street, Cambridge CB2 3EB, England. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Auditory Perception* Auditory Threshold Humans Perceptual Masking* Pitch Discrimination* Psychoacoustics Signal Detection, Psychological* Sound Spectrography Time Factors |
| Grant Support | |
ID/Acronym/Agency:
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//Medical Research Council; //Wellcome Trust |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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