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Categorical perception of lexical tones in Chinese people with post-stroke aphasia.

Authors :
Zhang, Wei
Liao, Yi
Chang, Hui
Source :
Clinical Linguistics & Phonetics. 2023, Vol. 37 Issue 12, p1069-1090. 22p.
Publication Year :
2023

Abstract

This study used the categorical perception (CP) paradigm, a fine-grained perceptual method, to investigate the perceptual performance of lexical tones in Chinese people with post-stroke aphasia (PWA). Twenty patients with post-stroke aphasia (10 Broca's and 10 Wernicke's) and ten neurologically intact age-matched control participants were recruited to complete both identification and discrimination tasks of the Mandarin Tone 1–2 continuum. In addition, all participants completed tests on their auditory comprehension ability and working memory. The results showed that both Broca's and Wernicke's patients exhibited reduced sensitivity to within-category and between-category information but preserved CP of lexical tones. The degree of CP of lexical tones related to working memory in aphasic patients. Furthermore, lower-level acoustic processing underpinned higher-level phonological processing on the CP of lexical tones since both patient groups' unbalanced pitch processing ability extended to their CP of lexical tones. These findings are significant for researchers and clinicians in speech-language rehabilitation, clinical psychology, and cognitive communication. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02699206
Volume :
37
Issue :
12
Database :
Academic Search Index
Journal :
Clinical Linguistics & Phonetics
Publication Type :
Academic Journal
Accession number :
174546384
Full Text :
https://doi.org/10.1080/02699206.2022.2138785