Abstract
Although bilingualism is widespread, little data on verbal fluency tasks (VFTs) within bilingualism subtypes and the underlying mechanisms exist. The study’s objective was to explore executive and language processes in 10 semantic and letter VFTs and a set of language and executive tests among 100 elderly Arabic-French bilinguals from three bilingualism subgroups: Arabic-dominant, French-dominant, and balanced. We observed a prominent-language advantage for semantic and letter VFTs in French but not for letter VFTs in Arabic. This advantage in the VFT was associated with a sustained rate of late production, a higher percentage of specific words, a higher number of clusters, and a larger cluster size, and was related mainly to language processes. Our results suggest that the strategic search processes underlying VFTs operate on the two phonological output lexicons of bilinguals with similar characteristics in different languages and thus support the hypothesis of a single, centralized, strategic search process.
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