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Updated: Jun 30, 2025
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
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The perception of code-switched speech in noise
Maria Fernanda Gavino1, Matthew Goldrick2
1Department of Psychiatry, University of California, San Diego, La Jolla, California 92093, USA.
JASA Express Letters
|March 19, 2024
Summary
Heritage bilinguals found code-switched sentences harder to understand than single-language sentences. This suggests language co-activation during code-switching perception incurs significant processing costs.
Area of Science:
- Psycholinguistics
- Bilingualism research
- Speech perception
Background:
- Heritage bilinguals often code-switch, mixing languages within sentences.
- Previous research on single words suggests code-switching perception is challenging.
- Naturalistic sentences might offer cues that ease code-switching perception.
Purpose of the Study:
- To examine heritage bilinguals' perception of naturalistic code-switched sentences.
- To compare speech perception in code-switched versus single-language contexts.
- To determine the processing costs associated with code-switching perception.
Main Methods:
- Fifty-four Mexican-American Spanish heritage bilinguals participated.
- Participants transcribed sentences presented in noise.
- Speech stimuli included blocks of English, Spanish, and code-switched sentences.
Main Results:
- Speech perception was significantly better in single-language blocks compared to code-switched blocks.
- Heritage bilinguals experienced greater difficulty with code-switched sentences.
- Results indicate processing costs due to language co-activation.
Conclusions:
- Heritage bilinguals face perceptual challenges with naturalistic code-switched sentences.
- Code-switching perception incurs significant cognitive processing costs.
- Language co-activation during perception impacts speech understanding.
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