Within Average Variability of the Acoustically Evoked Response This study explored the effects of various tasks, designed to alter the degree of “attention to stimuli” on the variability of the EEG activity which gives rise to the average acoustically evoked response. Evoked responses to 50 dB SL clicks were recorded from the vertex of eight male subjects under ... Research Article
Research Article  |   March 01, 1971
Within Average Variability of the Acoustically Evoked Response
 
Author Affiliations & Notes
  • Lawrence W. Keating
    Mayo Clinic, Rochester, Minnesota
  • Howard B. Ruhm
    University of Oklahoma, Medical Center, Oklahoma City, Oklahoma
Article Information
Research Articles
Research Article   |   March 01, 1971
Within Average Variability of the Acoustically Evoked Response
Journal of Speech, Language, and Hearing Research, March 1971, Vol. 14, 179-188. doi:10.1044/jshr.1401.179
History: Received August 6, 1969
 
Journal of Speech, Language, and Hearing Research, March 1971, Vol. 14, 179-188. doi:10.1044/jshr.1401.179
History: Received August 6, 1969

This study explored the effects of various tasks, designed to alter the degree of “attention to stimuli” on the variability of the EEG activity which gives rise to the average acoustically evoked response. Evoked responses to 50 dB SL clicks were recorded from the vertex of eight male subjects under four conditions (1) quiet, (2) .counting, (3) discriminating, and (4) reading. Results showed the quiet condition to yield the greatest variability while reading exhibited the least.

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