1985 Volume 31 Issue 3 Pages 515-524
We discussed fundamental problems and clinical application on the auditory brainstem responses to bone-conducted signals. 1. Measuring the frequency responses of three bone vibrators to 0.1V (rms) electric input, the one which had maximum output level in high frequency was seemed to be the most favorable to elicit bone-conducted ABRs. 2. The difference between the input power spectrum of electric sinusoidal one wave (0.5 KHz, 1 KHz, 2 KHz, and 4 KHz) and the output spectrum obtained from the artificial mastoid stimulated by the bone vibrator were compared, and then the results of the comparison were showed us the facts about frequency specificity of bone-conducted ABRs. 3. We have found clinical method to determine better hearing ear site by means of bilateral recording of bone-conducted ABRs, in a case those who could not be masked because of bilateral severe conductive hearing loss.
