An Empirical Evaluation of the Effects of High-Pass Noise on the Whole-Nerve Action Potential A number of methods are presented for evaluating the effects of high-pass noise on the whole-nerve action potential (AP). These methods include measurements of AP thresholds, amplitude-versus-level functions, decrement in AP amplitude-versus-masker level functions, and AP tuning curves. Examinations of threshold shifts as a function of tone-burst frequency and AP ... Research Article
Research Article  |   September 01, 1982
An Empirical Evaluation of the Effects of High-Pass Noise on the Whole-Nerve Action Potential
 
Author Affiliations & Notes
  • Michael P. Gorga
    Boys Town Institute, Omaha, Nebraska
  • Paul J. Abbas
    University of Iowa, Iowa City
Article Information
Research Articles
Research Article   |   September 01, 1982
An Empirical Evaluation of the Effects of High-Pass Noise on the Whole-Nerve Action Potential
Journal of Speech, Language, and Hearing Research, September 1982, Vol. 25, 456-461. doi:10.1044/jshr.2503.456
History: Received May 11, 1981 , Accepted August 26, 1981
 
Journal of Speech, Language, and Hearing Research, September 1982, Vol. 25, 456-461. doi:10.1044/jshr.2503.456
History: Received May 11, 1981; Accepted August 26, 1981

A number of methods are presented for evaluating the effects of high-pass noise on the whole-nerve action potential (AP). These methods include measurements of AP thresholds, amplitude-versus-level functions, decrement in AP amplitude-versus-masker level functions, and AP tuning curves. Examinations of threshold shifts as a function of tone-burst frequency and AP amplitude-versus-level with and without the presentation of high-pass noise indicate that basal portions of the cochlear partition can be masked effectively. Decrement in AP amplitude-versus-masker level functions and subsequently constructed AP tuning curves were used to verify that the presentation of high-pass noise did not alter the frequency response of that region of the basilar membrane responding to a 4000-Hz tone-burst probe. As a result, we conclude that high-pass noise may be used to mask the response from remote regions of the cochlea without altering response characteristics from lower frequency regions.

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