Auditory evoked responses from the inferior colliculus of guinea pigs were obtained at 17 frequencies between 0.5 and 20.0 kHz tested.
A comparison between the evoked response threshold curves from the inferior colliculus and the behavioral audiograms by conditioned-suppresion previously reported reveals a favorable correlation. The cochlear potential curve in these animals, however, appears to be a less efficient predictor of the audibility curve than the present evoked response curve.
The utility of the evoked response audiometry from the inferior colliculus for quickly assessing auditory thresholds in guinea pigs is proposed.
