| Within-channel gap detection using dissimilar markers in cochlear implant listeners. | |
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MedLine Citation:
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PMID: 9604345 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Temporal gap detection thresholds were measured between perceptually dissimilar electrical markers in cochlear implant listeners. Both markers were presented to the same electrode pair. The amplitude and pulse rate of the first marker were fixed, and gap thresholds were measured as a function of either the pulse rate or the amplitude of the second marker. In either case, U-shaped functions were obtained, with lowest gap thresholds occurring when the two markers were similar in both amplitude and pulse rate. Because the two markers were presented to the same electrode pair, the data cannot be accounted for on the basis of across-channel interactions. It is hypothesized that when different markers are used, the perceptual discontinuity from the first marker to the second is similar to the sensation of a brief gap, and dominates the gap detection process. Thus, gap threshold functions with electrically dissimilar markers serve more as indicators of perceptual distance between the markers and less as measures of temporal resolution. |
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Authors:
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M Chatterjee; Q J Fu; R V Shannon |
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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: 103 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 1998 May |
Date Detail:
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Created Date: 1998-07-09 Completed Date: 1998-07-09 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: 2515-9 Citation Subset: IM |
Affiliation:
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Department of Auditory Implants and Perception, House Ear Institute, Los Angeles, California 90057, USA. monita@hei.org |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Auditory Threshold* Cochlear Implantation* Deafness / surgery* Humans Loudness Perception / physiology* Psychophysics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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