Non-surgical recording of auditory pathway function in cats.

The techniques are described for serial, non-surgical recording of the cochlear microphonic (CM), the electrocochleogram (ECoG) and the averaged electroencephalic response (AER) in cats. The early post-natal period has been systematically studied in a breeding strain of hereditarily deaf white cats, and illustrative examples are presented from animals with histologically normal chochleae, and also from ears with confirmed chochleosaccular degeneration. Transitory potentials have been recorded with the CM and ECoG procedures from some of the latter.