Intense (up to 59 dB SPL) spontaneous otoacoustic emissions are produced by both ears of a young dog. The right ear produces a single, very narrow-band (< 4 Hz) emission at about 9100 Hz. Brainstem evoked-response audiometry suggests that this emission is generated near the transition between normal and abnormal regions of the cochlea.
Bibliographical noteFunding Information:
We thank Samson’s owners, Mary and John Morris, for making their pet available for study. Carolyn Reckman typed the manuscript. This work was supported by NINCDS Grant NS12125.
- brainstem-evoked response
- spontaneous acoustic emission