Comparing Bilateral and Single-Sided Deaf Cochlear Implant Recipients in a Novel Speech-in-Noise and Localization Task.

ABSTRACT:

Objective

This study investigated how individuals who have undergone bilateral cochlear implantations (BiCIs) use compensatory head movements to optimize sound localization and speech-in-noise (SIN) performance compared with single-sided deaf users of cochlear implant (SSDCI) and normal hearing controls.

Study design

Nonrandomized, prospective human-subject study.

Setting

Tertiary academic medical center.

Methods

Subjects were presented with Harvard IEEE sentences at varying signal-to-noise ratios (SNRs) in a darkened, semianechoic chamber. An electromagnetic head-tracking system monitored head movement. Outcomes included head movement patterns, localization accuracy, and SIN performance.

Results

BiCI localized targets less accurately with higher SNR-dep

SUBMITTER: Abdulrazzak O 

PROVIDER: S-EPMC12035515 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature