A cochlear prosthesis: Further clinical observations; preliminary results of physiological studies

A series of simple psychoacoustic studies were conducted on three deaf patients with indwelling scala tympani electrodes to determine better what they hear as a consequence of electrical stimulation. Physiological experiments on cats implanted with a similar electrode were conducted to determine how the sensation heard by these patients is generated and encoded in the auditory nervous system. Some preliminary results of these animal experiments are described. Additional improvements in the surgical implantation procedure are detailed.