Volume 3, Issue 2
  • ISSN 1871-1340
  • E-ISSN: 1871-1375
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Recent research on language production suggests that bilinguals shift from using inhibitory control mechanisms to a language-specific selective mechanism during development (Costa, Santesteban, & Ivanova, 2006). Costa et al. argue that the robustness of the L2 lexical representations may be critical to the functionality of a language-specific selective mechanism. Accordingly, in the present study we measured the lexical robustness of a group of 54 English dominant learners of Spanish using a verbal fluency task and investigated its effect on their performance in a picture-naming task with language switches. The results suggest that L2 lexical robustness predicts the shift to a language-specific selective mechanism during speech production. Moreover, we demonstrate a specific threshold of lexical robustness necessary to engage the mechanism.


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  • Article Type: Research Article
Keyword(s): bilingual speech production; inhibitory control; lexical robustness
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