Gap Detection and Temporal Modulation Transfer Function as Behavioral Estimates of Auditory Temporal Acuity Using Band-Limited Stimuli in Young and Older Adults Purpose Gap detection and the temporal modulation transfer function (TMTF) are 2 common methods to obtain behavioral estimates of auditory temporal acuity. However, the agreement between the 2 measures is not clear. This study compares results from these 2 methods and their dependencies on listener age and hearing status. ... Research Article
Research Article  |   December 01, 2014
Gap Detection and Temporal Modulation Transfer Function as Behavioral Estimates of Auditory Temporal Acuity Using Band-Limited Stimuli in Young and Older Adults
 
Author Affiliations & Notes
  • Yi Shen
    University of California, Irvine
  • Disclosure: The author has declared that no competing interests existed at the time of publication.
    Disclosure: The author has declared that no competing interests existed at the time of publication.×
  • Correspondence to Yi Shen: shen.yi@uci.edu
  • Editor: Nancy Tye-Murray
    Editor: Nancy Tye-Murray×
  • Associate Editor: Eric Healy
    Associate Editor: Eric Healy×
Article Information
Hearing & Speech Perception / Acoustics / Hearing / Research Articles
Research Article   |   December 01, 2014
Gap Detection and Temporal Modulation Transfer Function as Behavioral Estimates of Auditory Temporal Acuity Using Band-Limited Stimuli in Young and Older Adults
Journal of Speech, Language, and Hearing Research, December 2014, Vol. 57, 2280-2292. doi:10.1044/2014_JSLHR-H-13-0276
History: Received October 8, 2013 , Revised May 18, 2014 , Accepted July 15, 2014
 
Journal of Speech, Language, and Hearing Research, December 2014, Vol. 57, 2280-2292. doi:10.1044/2014_JSLHR-H-13-0276
History: Received October 8, 2013; Revised May 18, 2014; Accepted July 15, 2014
Web of Science® Times Cited: 3

Purpose Gap detection and the temporal modulation transfer function (TMTF) are 2 common methods to obtain behavioral estimates of auditory temporal acuity. However, the agreement between the 2 measures is not clear. This study compares results from these 2 methods and their dependencies on listener age and hearing status.

Method Gap detection thresholds and the parameters that describe the TMTF (sensitivity and cutoff frequency) were estimated for young and older listeners who were naive to the experimental tasks. Stimuli were 800-Hz-wide noises with upper frequency limits of 2400 Hz, presented at 85 dB SPL. A 2-track procedure (Shen & Richards, 2013) was used for the efficient estimation of the TMTF.

Results No significant correlation was found between gap detection threshold and the sensitivity or the cutoff frequency of the TMTF. No significant effect of age and hearing loss on either the gap detection threshold or the TMTF cutoff frequency was found, while the TMTF sensitivity improved with increasing hearing threshold and worsened with increasing age.

Conclusion Estimates of temporal acuity using gap detection and TMTF paradigms do not seem to provide a consistent description of the effects of listener age and hearing status on temporal envelope processing.

Acknowledgments
This work was supported by a New Investigator Research Grant from the American Speech-Language-Hearing Foundation. Additional support was provided by National Institutes of Health Grant R21 DC013406 (co-principal investigators: V. M. Richards and Y. Shen). The author would like to thank Rajeswari Sivakumar for her assistance in data collection.
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