How different code-switching types modulate bilinguals' executive functions : A dual control mode perspective

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2020
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Hofweber, Julia
Treffers-Daller, Jeanine
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Most existing studies on the relationship between code-switching and executive functions have focused on experimentally induced language-switching, which differs fundamentally from naturalistic code-switching. This study investigated whether and how bilinguals’ code-switching practices modulate different aspects of executive functioning. Our findings suggest that existing processing models of code-switching should be extended by a dual control mode perspective, differentiating between reactive and proactive monitoring. Bilinguals engaging in code-switching types that keep languages more separate (Alternation) displayed inhibitory advantages in a flanker task inducing reactive control. Dense code-switching, which requires bilinguals to constantly monitor cross-linguistic competition, explained performance in proactive monitoring conditions. Furthermore, a correlation between Dense code-switching and response inhibition suggests that linguistic co-activation may persist during articulatory stages of language processing. Crucially, bilinguals outperformed monolinguals at those aspects of the executive system that were trained by their most frequent code-switching habits. This underlines the importance of sociolinguistic variables in bilingualism research.

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400 Sprachwissenschaft, Linguistik
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bilingualism, code-switching, executive functions, response inhibition, interference suppression
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ISO 690HOFWEBER, Julia, Theodoros MARINIS, Jeanine TREFFERS-DALLER, 2020. How different code-switching types modulate bilinguals' executive functions : A dual control mode perspective. In: Bilingualism: Language and Cognition. Cambridge University Press. 2020, 23(4), pp. 909-925. ISSN 1366-7289. eISSN 1469-1841. Available under: doi: 10.1017/S1366728919000804
BibTex
@article{Hofweber2020-08diffe-50238,
  year={2020},
  doi={10.1017/S1366728919000804},
  title={How different code-switching types modulate bilinguals' executive functions : A dual control mode perspective},
  number={4},
  volume={23},
  issn={1366-7289},
  journal={Bilingualism: Language and Cognition},
  pages={909--925},
  author={Hofweber, Julia and Marinis, Theodoros and Treffers-Daller, Jeanine}
}
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