Acoustic-Reflex Growth for Multitone Complexes The effects of activator spectral density on the growth characteristics of the acoustic reflex were evaluated in normal-hearing subjects. Reflex-growth dynamics were evaluated for computer-synthesized activators composed of 2 to 50 components and bandwidths wider and more narrow than the reported critical band for loudness summation. Although acoustic-reflex characteristics varied ... Research Article
Research Article  |   March 01, 1986
Acoustic-Reflex Growth for Multitone Complexes
 
Author Affiliations & Notes
  • Michael G. Block
    Indiana University, Bloomington
  • Terry L. Wiley
    University of Wisconsin, Madison
Article Information
Research Articles
Research Article   |   March 01, 1986
Acoustic-Reflex Growth for Multitone Complexes
Journal of Speech, Language, and Hearing Research, March 1986, Vol. 29, 92-98. doi:10.1044/jshr.2901.92
History: Received May 14, 1985 , Accepted September 20, 1985
 
Journal of Speech, Language, and Hearing Research, March 1986, Vol. 29, 92-98. doi:10.1044/jshr.2901.92
History: Received May 14, 1985; Accepted September 20, 1985

The effects of activator spectral density on the growth characteristics of the acoustic reflex were evaluated in normal-hearing subjects. Reflex-growth dynamics were evaluated for computer-synthesized activators composed of 2 to 50 components and bandwidths wider and more narrow than the reported critical band for loudness summation. Although acoustic-reflex characteristics varied with activator bandwidth, there were no significant differences in reflex-growth patterns as a function of activator density (number of components). The findings suggest that, like loudness summation, growth or magnitude characteristics of the acoustic reflex are unaffected by the spectral density of the signal.

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