Thesis
A hierarchy of sound discrimination: evidence from eye-tracking in the Visual World Paradigm
University of Iowa
Master of Arts (MA), University of Iowa
Spring 2023
DOI: 10.25820/etd.007149
Abstract
Purpose: Many studies have demonstrated that Auditory Training for adult cochlear implant (CI) users is beneficial for overall speech perception. Currently, Auditory Training involves teaching perceptual distinctions of sounds based on which phonemes are easier/harder to discriminate. However, there is a lack of evidence to support the validity of the hierarchy in which Auditory Training currently instructs adult CI users. The objective of the current study is to implement psycholinguistic theories and methods to explore how typical hearing listeners discriminate phonemes within the conditions of place of articulation, manner of articulation, voicing, and nasality.
Method: Given a display of four images: a target (e.g., lab), a cohort (e.g., lamb), an unrelated item (e.g., ditch), and another unrelated item (e.g., dish), participants (n = 30) clicked on the image that corresponded to the target word they heard.
Results: We found that listeners demonstrated a higher proportion of looking given a target word within the conditions of place of articulation and manner of articulation relative to voicing and nasality.
Conclusion: These results suggest that psycholinguistic theories and models can be used as evidence to create a hierarchy of phoneme discrimination as it relates to auditory training in cochlear implant users.
Details
- Title: Subtitle
- A hierarchy of sound discrimination: evidence from eye-tracking in the Visual World Paradigm
- Creators
- Nadine Lee
- Contributors
- Kristi Hendrickson (Advisor)Elizabeth Walker (Committee Member)Philip Combiths (Committee Member)Meaghan Foody (Committee Member)
- Resource Type
- Thesis
- Degree Awarded
- Master of Arts (MA), University of Iowa
- Degree in
- Speech Pathology and Audiology
- Date degree season
- Spring 2023
- DOI
- 10.25820/etd.007149
- Publisher
- University of Iowa
- Number of pages
- vii, 14 pages
- Copyright
- Copyright 2023 Nadine Lee
- Language
- English
- Date submitted
- 04/24/2023
- Date approved
- 05/05/2023
- Description illustrations
- Illustrations, tables, graphs, charts
- Description bibliographic
- Includes bibliographical references (pages 9-10).
- Public Abstract (ETD)
Many studies have demonstrated that auditory training for adult cochlear implant (CI) users is beneficial for overall speech perception. The objective of the current study is to implement psycholinguistic theories to explore how typical hearing listeners discriminate phonemes within the following conditions: place, manner, voicing, and nasality. Given a display of four images: a target, a cohort, an unrelated item, and another unrelated item, participants clicked on the image that corresponded to the target word they heard. We found that listeners demonstrated a higher proportion of looking given a target word within the conditions of place and manner relative to voicing and nasality. We found empirical evidence to support the prevailing method of auditory training.
- Academic Unit
- Communication Sciences and Disorders; Center for Social Science Innovation
- Record Identifier
- 9984424790402771
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