Binaural Pitch Fusion in Bilateral Cochlear Implant Users.

ABSTRACT:

Objectives

Binaural pitch fusion is the fusion of stimuli that evoke different pitches between the ears into a single auditory image. Individuals who use hearing aids or bimodal cochlear implants (CIs) experience abnormally broad binaural pitch fusion, such that sounds differing in pitch by as much as 3-4 octaves are fused across ears, leading to spectral averaging and speech perception interference. The goal of this study was to determine if adult bilateral CI users also experience broad binaural pitch fusion.

Design

Stimuli were pulse trains delivered to individual electrodes. Fusion ranges were measured using simultaneous, dichotic presentation of reference and comparison stimuli in opposite ears, and varying the comparison stimulus to find the range that fused with the r

SUBMITTER: Reiss LAJ 

PROVIDER: S-EPMC5821581 | biostudies-literature | 2018 Mar/Apr

REPOSITORIES: biostudies-literature