Some Relationships Between Audiometry and Cochlear Microphonics in Man Cochlear microphonic potentials, recorded with round window electrodes, were obtained from six patients in the operating room. The response criterion consisted of the sound pressure level, for which the cochlear voltage was at a minimum reading at each of five test frequencies. These data were compared to standard audiometric thresholds ... Research Article
Research Article  |   March 01, 1969
Some Relationships Between Audiometry and Cochlear Microphonics in Man
 
Author Affiliations & Notes
  • Alfred Finck
    Temple University School of Medicine, Philadelphia, Pennsylvania
  • Max L. Ronis
    Temple University School of Medicine, Philadelphia, Pennsylvania
  • Philip E. Rosenberg
    Temple University School of Medicine, Philadelphia, Pennsylvania
Article Information
Research Articles
Research Article   |   March 01, 1969
Some Relationships Between Audiometry and Cochlear Microphonics in Man
Journal of Speech, Language, and Hearing Research, March 1969, Vol. 12, 156-160. doi:10.1044/jshr.1201.156
History: Received July 12, 1968
 
Journal of Speech, Language, and Hearing Research, March 1969, Vol. 12, 156-160. doi:10.1044/jshr.1201.156
History: Received July 12, 1968

Cochlear microphonic potentials, recorded with round window electrodes, were obtained from six patients in the operating room. The response criterion consisted of the sound pressure level, for which the cochlear voltage was at a minimum reading at each of five test frequencies. These data were compared to standard audiometric thresholds for the same ears. The relationships between audiometric (behavioral) data and electrophysiological responses indicate comparable frequency sensitivity to sound. Cochlear microphonic measurement presents a valid method for approaching the threshold of auditory sensitivity in man.

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