Middle Components of the AER to Tone-Pips in Normal-Hearing and Hearing-Impaired Subjects Tone-pips of 500, 1000, and 3000 Hz were presented at 0-, 10-, 20-, 35-, and 50-dB HL to 10 normal-hearing subjects and at 0-, 10-, 20-, 35-, and 50-dB SL to 10 subjects with conductive, sensorineural, or mixed hearing losses. Middle component (latencies 8–90 msec) averaged electroencephalic responses to the ... Research Article
Research Article  |   December 01, 1977
Middle Components of the AER to Tone-Pips in Normal-Hearing and Hearing-Impaired Subjects
 
Author Affiliations & Notes
  • William H. McFarland
    California State College-Stanislaus, Turlock
  • Michael C. Vivion
    University of Wisconsin, Madison
  • Robert Goldstein
    University of Wisconsin, Madison
Article Information
Research Articles
Research Article   |   December 01, 1977
Middle Components of the AER to Tone-Pips in Normal-Hearing and Hearing-Impaired Subjects
Journal of Speech, Language, and Hearing Research, December 1977, Vol. 20, 781-798. doi:10.1044/jshr.2004.781
History: Received November 1, 1976 , Accepted July 12, 1977
 
Journal of Speech, Language, and Hearing Research, December 1977, Vol. 20, 781-798. doi:10.1044/jshr.2004.781
History: Received November 1, 1976; Accepted July 12, 1977

Tone-pips of 500, 1000, and 3000 Hz were presented at 0-, 10-, 20-, 35-, and 50-dB HL to 10 normal-hearing subjects and at 0-, 10-, 20-, 35-, and 50-dB SL to 10 subjects with conductive, sensorineural, or mixed hearing losses. Middle component (latencies 8–90 msec) averaged electroencephalic responses to the tone-pips were analyzed in terms of peak latencies and peak-to-peak amplitudes. Properties of the responses were generally the same for both normal-hearing and hearing-impaired subjects except that the hearing-impaired subjects showed slightly greater amplitudes overall. The small reduction in latencies with increasing stimulus frequency seen in the normal-hearing subjects was not observed in the hearing-impaired subjects.

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