Related Experiment Video
Updated: Oct 19, 2025
06:04
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
521
Talker Adaptation and Lexical Difficulty Impact Word Recognition in Adults with Cochlear Implants
Terrin N Tamati1,2, Aaron C Moberly1
1Department of Otolaryngology, Head & Neck Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.
Audiology & Neuro-Otology
|September 18, 2021
Summary
Adult cochlear implant (CI) users showed limited talker adaptation, but improved word recognition for difficult words. Auditory and neurocognitive skills influenced performance and real-world function.
Area of Science:
- Audiology
- Neuroscience
- Speech-Language Pathology
Background:
- Talker-specific adaptation enhances speech recognition in individuals with normal hearing.
- Investigating talker adaptation in adult cochlear implant (CI) users is crucial for understanding their auditory processing capabilities.
- This study explores the impact of talker adaptation on word recognition in high-performing adult CI users.
Purpose of the Study:
- To determine if high-performing adult CI users exhibit talker adaptation, particularly for lexically challenging words.
- To assess the influence of auditory sensitivity and neurocognitive skills on individual CI user performance.
- To examine the relationship between CI user performance and real-world auditory functioning.
Main Methods:
- Fifteen post-lingually deaf adult CI users participated in a word recognition task with single-talker blocks.
- Lexical difficulty (easy/hard words) and recognition accuracy (early/late trials) were assessed to quantify adaptation.
- Participants also underwent spectral-temporal processing, neurocognitive, and real-world auditory functioning assessments.
Main Results:
- Adult CI users demonstrated limited overall talker adaptation, with notable improvements for lexically hard words.
- Stronger spectral-temporal processing and neurocognitive skills correlated with better word recognition and adaptation for hard words.
- Word recognition accuracy for hard words showed a moderate association with multiple-talker sentence recognition and quality of life.
Conclusions:
- Adult CI users experience limited benefits from talker adaptation, primarily for recognizing lexically difficult words.
- Auditory sensitivity and neurocognitive abilities are key determinants of CI user performance in talker adaptation tasks.
- Individual differences in processing, adaptation, and lexical difficulty may impact real-world auditory function for CI users.
