| The role of frequency selectivity in measures of auditory and vibrotactile temporal resolution. | |
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MedLine Citation:
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PMID: 1737878 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to compare the role of frequency selectivity in measures of auditory and vibrotactile temporal resolution. In the first experiment, temporal modulation transfer functions for a sinusoidally amplitude modulated (SAM) 250-Hz carrier revealed auditory modulation thresholds significantly lower than corresponding vibrotactile modulation thresholds at SAM frequencies greater than or equal to 100 Hz. In the second experiment, auditory and vibrotactile gap detection thresholds were measured by presenting silent gaps bounded by markers of the same or different frequency. The marker frequency F1 = 250 Hz preceded the silent gap and marker frequencies after the silent gap included F2 = 250, 255, 263, 310, and 325 Hz. Auditory gap detection thresholds were lower than corresponding vibrotactile thresholds for F2 markers less than or equal to 263 Hz, but were greater than the corresponding vibrotactile gap detection thresholds for F2 markers greater than or equal to 310 Hz. When the auditory gap detection thresholds were transformed into filter attenuation values, the results were modeled well by a constant-percentage (10%) bandwidth filter centered on F1. The vibrotactile gap detection thresholds, however, were independent of marker frequency separation. In a third experiment, auditory and vibrotactile rate difference limens (RDLs) were measured for a 250-Hz carrier at SAM rates less than or equal to 100 Hz. Auditory RDLs were lower than corresponding vibrotactile RDLs for standard rates greater than 10 Hz. Combination tones may have confounded auditory performance for standard rates of 80 and 100 Hz. The results from these experiments revealed that frequency selectivity influences auditory measures of temporal resolution, but there was no evidence of frequency selectivity affecting vibrotactile temporal resolution. |
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Authors:
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C Formby; L N Morgan; T G Forrest; J J Raney |
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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: 91 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 1992 Jan |
Date Detail:
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Created Date: 1992-03-17 Completed Date: 1992-03-17 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: 293-305 Citation Subset: IM |
Affiliation:
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Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Auditory Perception / physiology* Auditory Threshold / physiology Female Humans Male Pitch Perception / physiology* Sensory Thresholds / physiology* Time Perception / physiology* Touch / physiology* Vibration* |
| Grant Support | |
ID/Acronym/Agency:
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NS-01113/NS/NINDS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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