Related Experiment Video
Updated: Oct 27, 2025
06:04
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
532
The Spatial Selective Auditory Attention of Cochlear Implant Users in Different Conversational Sound Levels
Sara Akbarzadeh1, Sungmin Lee2, Chin-Tuan Tan1
1Department of Electrical and Computer Engineering, University of Texas at Dallas, Richardson, TX 75080, USA.
Journal of Clinical Medicine
|July 24, 2021
Summary
Cochlear implant (CI) users
Area of Science:
- Auditory Neuroscience
- Hearing Science
- Speech Processing
Background:
- Cochlear implant (CI) users often struggle with selective auditory attention in multi-speaker environments compared to normal hearing (NH) individuals.
- Understanding how conversational sound levels impact attention mechanisms is crucial for improving CI user experience.
Purpose of the Study:
- To investigate the effect of conversational sound levels on selective auditory attention in CI and NH listeners.
- To determine how different hearing modes in CI users influence auditory attention at varying sound levels.
Main Methods:
- Behavioral speech recognition (matrix sentences test) and neural tracking (EEG) were used.
- Stimuli were presented at 75, 65, and 55 dB SPL with competing maskers.
- CI users were evaluated in electric, acoustic, and combined electric + acoustic hearing modes.
Main Results:
- Increased sound levels impaired selective auditory attention in CI users relying on electrical hearing.
- Higher sound levels improved selective auditory attention for CI users in acoustic hearing mode.
- NH listeners showed no significant change in auditory attention with varying sound levels.
Conclusions:
- The impact of sound level on selective auditory attention differs across hearing modes for CI users.
- Loudness control strategies are essential to facilitate conversational attention for CI users.
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