Effects of Dual-Electrode Asynchrony on Temporal Pitch Discrimination With Amplitude Modulation and Short Inter-Pulse Intervals in Cochlear Implant Listeners.

ABSTRACT: Cochlear-implant listeners show impaired pitch perception compared to normal-hearing listeners. One of the factors limiting pitch sensitivity in multi-electrode as compared to single-electrode stimulation can be intracochlear interactions of electrode signals (i.e., channels). We measured temporal-pitch discrimination sensitivity for loudness-balanced dual-electrode stimuli with various spatio-temporal configurations in listeners with MED-EL implants. We hypothesized a link between pitch sensitivity and tonotopic separation as well as (monaural) temporal electrode asynchrony, the latter resulting in various combinations of inter-pulse intervals in the compound stimuli received by the auditory nerve. Per-electrode stimulus types were high-rate (i.e., 1,000-pps) pulse trains with a 100-Hz am

SUBMITTER: Lindenbeck MJ 

PROVIDER: S-EPMC12796140 | biostudies-literature | 2026 Jan-Dec

REPOSITORIES: biostudies-literature