On the overlap between bilingual language control and domain-general executive control

We explored the overlap between bilingual language control (bLC) and domain-general executive control (EC) by focusing on inhibitory control processes. We tested 62 bilinguals in linguistic and non-linguistic switching tasks for two types of costs, such as the n − 1 shift cost and the n − 2 repetiti...

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Detalhes bibliográficos
Autores: Branzi, Francesca Martina, 1984-, Calabria, Marco, Boscarino, Maria Lucrezia, Costa, Albert, 1970-
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Recursos:Universitat Pompeu Fabra
Repositorio:Repositorio Digital de la UPF
OAI Identifier:oai:repositori.upf.edu:10230/36246
Acesso em linha:http://hdl.handle.net/10230/36246
http://dx.doi.org/10.1016/j.actpsy.2016.03.001
Access Level:acceso abierto
Palavra-chave:Bilingual language control
Domain-general executive control
Inhibitory control
Task-switching
Descrição
Resumo:We explored the overlap between bilingual language control (bLC) and domain-general executive control (EC) by focusing on inhibitory control processes. We tested 62 bilinguals in linguistic and non-linguistic switching tasks for two types of costs, such as the n − 1 shift cost and the n − 2 repetition cost. In order to explore the involvement of inhibitory control in bLC and EC, we assessed the pattern of switch costs in the two tasks and then we correlated them between tasks. Results showed reduced n − 2 repetition costs as compared to n − 1 shift costs in the linguistic task only, suggesting that small amount of inhibition were deployed when switching between languages. Importantly, neither the n − 1 shift costs nor the n − 2 repetition costs were correlated between tasks. These results, supported by additional evidence from the ex-Gaussian analysis, suggest that inhibitory control is differently involved in bLC and in EC.