Temporal Analysis and Stimulus Fluctuation in Listeners With Normal and Impaired Hearing The first experiment investigated the effects of mild to moderate sensorineural hearing impairment on temporal analysis for noise stimuli of varying bandwidth. Tasks of temporal gap detection, amplitude modulation (AM) detection, and AM discrimination were examined. Relatively high levels of stimulation were used in order to reduce the possibility that ... Research Article
Research Article  |   April 01, 1998
Temporal Analysis and Stimulus Fluctuation in Listeners With Normal and Impaired Hearing
 
Author Affiliations & Notes
  • Joseph W. Hall, III
    Division of Otolaryngology/Head & Neck Surgery University of North Carolina at Chapel Hill
  • John H. Grose
    Division of Otolaryngology/Head & Neck Surgery University of North Carolina at Chapel Hill
  • Emily Buss
    Division of Otolaryngology/Head & Neck Surgery University of North Carolina at Chapel Hill
  • Debora R. Hatch
    Division of Otolaryngology/Head & Neck Surgery University of North Carolina at Chapel Hill
  • Contact author: Joseph W. Hall, Division of Otolaryngology/Head & Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7070.
    Contact author: Joseph W. Hall, Division of Otolaryngology/Head & Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7070.×
Article Information
Hearing & Speech Perception / Acoustics / Hearing Disorders / Hearing / Research Articles
Research Article   |   April 01, 1998
Temporal Analysis and Stimulus Fluctuation in Listeners With Normal and Impaired Hearing
Journal of Speech, Language, and Hearing Research, April 1998, Vol. 41, 340-354. doi:10.1044/jslhr.4102.340
History: Received July 30, 1997 , Accepted October 30, 1997
 
Journal of Speech, Language, and Hearing Research, April 1998, Vol. 41, 340-354. doi:10.1044/jslhr.4102.340
History: Received July 30, 1997; Accepted October 30, 1997

The first experiment investigated the effects of mild to moderate sensorineural hearing impairment on temporal analysis for noise stimuli of varying bandwidth. Tasks of temporal gap detection, amplitude modulation (AM) detection, and AM discrimination were examined. Relatively high levels of stimulation were used in order to reduce the possibility that the results of the listeners with hearing impairment would be influenced strongly by audibility. A general summary of results was that there was relatively great interlistener variation among the listeners with hearing impairment, with most listeners showing normal performance and some showing degraded performance, regardless of the bandwidth of the stimulus carrying the temporal information. A second experiment investigated the hypothesis that listeners with sensorineural hearing impairment might have poor gap detection due to loudness recruitment. Here, gap markers were presented at levels where loudness growth was steeper for the listeners with hearing impairment than for the listeners with normal hearing. Although gap detection was sometimes poorer in listeners with hearing impairment than in listeners with normal hearing, there was no clear relation between gap detection performance and loudness recruitment in listeners with mild to moderate sensorineural hearing impairment.

Acknowledgments
This research was supported by grant R01 DC00418 from NIH NIDCD. We thank Sid Bacon, Peter Fitzgibbons, and an anonymous reviewer for comments on a previous version of this manuscript.
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