ERIC Number: EJ887115
Record Type: Journal
Publication Date: 2010-Apr
Abstractor: As Provided
Reference Count: 0
What Causes the Bilingual Disadvantage in Verbal Fluency? The Dual-Task Analogy
Sandoval, Tiffany C.; Gollan, Tamar H.; Ferreira, Victor S.; Salmon, David P.
Bilingualism: Language and Cognition, v13 n2 p231-252 Apr 2010
We investigated the consequences of bilingualism for verbal fluency by comparing bilinguals to monolinguals, and dominant versus non-dominant-language fluency. In Experiment 1, bilinguals produced fewer correct responses, slower first response times and proportionally delayed retrieval, relative to monolinguals. In Experiment 2, similar results were obtained comparing the dominant to the non-dominant languages within bilinguals. Additionally, bilinguals produced significantly lower-frequency words and a greater proportion of cognate responses than monolinguals, and bilinguals produced more cross-language intrusion errors when speaking the non-dominant language, but almost no such intrusions when speaking the dominant language. These results support an analogy between bilingualism and dual-task effects (Rohrer et al., 1995), implying a role for between-language interference in explaining the bilingual fluency disadvantage, and suggest that bilingual fluency will be maximized under testing conditions that minimize such interference. More generally, the findings suggest a role for selection by competition in language production, and that such competition is more influential in relatively unconstrained production tasks.
Descriptors: Language Dominance, Speech Communication, Oral Language, Competition, Interference (Language), Language Fluency, Bilingualism, Verbal Communication, Monolingualism, Role, Error Patterns, Task Analysis
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Publication Type: Journal Articles; Reports - Research
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