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Cross-linguistic asymmetries in language production and code-switching patterns in bilingual aphasia
Anusha Balasubramanian1, Julia E Hofweber2, Arpita Bose1
1School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK.
Abstract:
This study investigates cross-linguistic asymmetries in noun and verb production in a Hindi-English bilingual with Broca's aphasia (RZ), focusing on the influence of task demands (narrative vs. noun naming, verb naming, repetition), morphological richness, and code-switching (frequency and type). RZ exhibited features of agrammatism in both languages, with more pronounced deficits in English. RZ showed grammatical class asymmetries in noun-verb production across tasks. He produced more verbs than nouns in Hindi in the narrative task, likely due to its rich morphology, while showing comparable noun-verb production in naming. Verb retrieval remained consistently impaired in English across tasks. RZ frequently but rigidly code-switched, mainly inserting English nouns within Hindi matrix structure and used bilingual compound verbs, suggesting a strategy to compensate for lexical deficits in Hindi and morphosyntactic challenges in English. These findings underscore the importance of language typology and task demands in shaping aphasic symptomatology in bilinguals.
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