Combined Effects of Recovery Period and Stimulus Intensity on the Human Auditory Evoked Vertex Response Averaged auditory evoked vertex responses were obtained from eight normal-hearing subjects in response to 32 monaural 1000-Hz tone bursts at 30 combinations of recovery period and stimulus intensity. From curves describing N1-P2 peak-to-peak amplitudes, an equation was derived that describes the combined effects of recovery period and stimulus intensity on ... Research Article
Research Article  |   June 01, 1973
Combined Effects of Recovery Period and Stimulus Intensity on the Human Auditory Evoked Vertex Response
 
Author Affiliations & Notes
  • David A. Nelson
    University of Minnesota, Minneapolis, Minnesota
  • Frank M. Lassman
    University of Minnesota, Minneapolis, Minnesota
Article Information
Research Articles
Research Article   |   June 01, 1973
Combined Effects of Recovery Period and Stimulus Intensity on the Human Auditory Evoked Vertex Response
Journal of Speech, Language, and Hearing Research, June 1973, Vol. 16, 297-308. doi:10.1044/jshr.1602.297
History: Received April 5, 1972 , Accepted January 10, 1973
 
Journal of Speech, Language, and Hearing Research, June 1973, Vol. 16, 297-308. doi:10.1044/jshr.1602.297
History: Received April 5, 1972; Accepted January 10, 1973

Averaged auditory evoked vertex responses were obtained from eight normal-hearing subjects in response to 32 monaural 1000-Hz tone bursts at 30 combinations of recovery period and stimulus intensity. From curves describing N1-P2 peak-to-peak amplitudes, an equation was derived that describes the combined effects of recovery period and stimulus intensity on evoked response amplitude. The results show evoked response amplitude to be a dual function of both recovery period and stimulus intensity. At a given stimulus intensity, evoked response amplitude increases as a logarithmic function of recovery period. At a given recovery period, evoked response amplitude increases as a power function of stimulus intensity. The combined effects of recovery period and stimulus intensity produce equal ratio changes in the slope of the recovery function with equal ratio changes in stimulus intensity.

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