Across-Frequency Processing by Listeners With Hearing Impairment Anyone who has worked with individuals having a moderate or worse sensorineural hearing impairment (HI) can clearly observe that audibility is a primary factor limiting performance. However, it should be equally clear that the processing of acoustic signals is not normal even when they are amplified such that full ... Article
Article  |   November 01, 2004
Across-Frequency Processing by Listeners With Hearing Impairment
Author Affiliations & Notes
  • Eric W. Healy
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC
Article Information
Hearing Disorders / Articles
Article   |   November 01, 2004
Across-Frequency Processing by Listeners With Hearing Impairment
SIG 6 Perspectives on Hearing and Hearing Disorders: Research and Diagnostics, November 2004, Vol. 8, 9-12. doi:10.1044/hhd8.2.9
SIG 6 Perspectives on Hearing and Hearing Disorders: Research and Diagnostics, November 2004, Vol. 8, 9-12. doi:10.1044/hhd8.2.9
Anyone who has worked with individuals having a moderate or worse sensorineural hearing impairment (HI) can clearly observe that audibility is a primary factor limiting performance. However, it should be equally clear that the processing of acoustic signals is not normal even when they are amplified such that full audibility is provided.
One suprathreshold-processing deficit that commonly accompanies HI is broadened auditory tuning. Frequency selectivity in these individuals can be quite poor, presumably due to a loss of outer hair cell function. In addition, these listeners often experience an abnormally steep growth in the perception of loudness as signal levels are increased. This loudness recruitment can be considered a supra-threshold-processing deficit to the extent that it hinders performance. The interested reader is directed to Moore (1998)  for a comprehensive review of these matters.
First Page Preview
First page PDF preview
First page PDF preview ×
View Large
Become a SIG Affiliate
Pay Per View
Entire SIG 6 Perspectives on Hearing and Hearing Disorders: Research and Diagnostics content & archive
24-hour access
This Issue
24-hour access
This Article
24-hour access
We've Changed Our Publication Model...
The 19 individual SIG Perspectives publications have been relaunched as the new, all-in-one Perspectives of the ASHA Special Interest Groups.