Evaluation of four Cochlear Implant Designs

Abstract
Multichannel cochlear implant systems that provide spectral information in addition to temporal and intensity cues are consistently allowing profoundly deafened postlingual adults to recognize some words without visual cues. All four of the devices enhance speech-reading ability and provide useful information about nonspeech sounds. The multichannel implant patients are generally functioning at a higher level in this limited random series.