Verbal attribute magnitude estimates of pulse trains acros selectrode places and stimulation rates in cochlear implant listeners

For cochlear implant users, temporal and place cue are assumed to varyalong two orthogonal perceptual dimensions linked to pitch height and timbre.Here, the effect of electrode place, pulse rate, and amplitude modulationfrequency on those perceptual dimensions was investigated. Combinations ofdifferent electrode places with differing pulse rates or modulation frequencieswere presented to the participants while they were asked to rate pitch heightand sound quality using multiple verbal attributes.

The results indicate thattemporal and place cues induce two perceptual dimensions that can be bothlinked to pitch and timbre.