Journal article
Cochlear implant users show unexpected flexibility when recognizing words in challenging conditions
The Journal of the Acoustical Society of America, Vol.152(4), pp.A141-A141
10/2022
DOI: 10.1121/10.0015826
Abstract
For typical listeners in quiet, lexical access occurs immediately. Multiple candidates are activated at word onset and subsequently updated as the word unfolds. For cochlear Implant (CI) users, this process changes to cope with their degraded input: CI users delay lexical access until a substantial portion of a word is heard, a profile termed ‘wait-and-see’. However, it is unclear whether this profile is adaptive or simply a result of deficient input. We addressed this using a paradigm in which neutral carrier sentences (“now click on the…”) were interrupted by periodic bursts of noise, even as target words were always clean. This expected difficulty condition was compared to trials in which both sentences and targets were in quiet or in noise. We used the Visual World Paradigm to assess the timecourse of lexical access and competition. Relative to normal hearing controls, CI users (N = 22) showed a robust wait-and-see profile in noise, delaying target fixations and reducing competition. In trials where noise was expected but the target was clean, CI users initially showed a wait-and-see response but rapidly recovered to reach quiet-like performance. This indicates that wait-and-see may be adaptive for challenging conditions, providing flexibility as listeners process words in real time.
Details
- Title: Subtitle
- Cochlear implant users show unexpected flexibility when recognizing words in challenging conditions
- Creators
- John Muegge - Psychol. and Brain Sci., Univ. of Iowa, 340 Iowa Ave., Iowa City, IA 52242, jmuegge@uiowa.eduBob McMurray - University of Iowa
- Resource Type
- Journal article
- Publication Details
- The Journal of the Acoustical Society of America, Vol.152(4), pp.A141-A141
- DOI
- 10.1121/10.0015826
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Number of pages
- 1
- Date published
- 10/2022
- Academic Unit
- Communication Sciences and Disorders; Linguistics; Psychological and Brain Sciences; Iowa Neuroscience Institute; Otolaryngology
- Record Identifier
- 9984319257902771
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