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A cross-sectional and longitudinal study on the protective effect of bilingualism against dementia using brain atrophy and cognitive measures
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Bilingual language control : Evidence from Parkinson's disease
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In: TDX (Tesis Doctorals en Xarxa) (2017)
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Labeling, word mapping and categorization in monolingual and bilingual infants
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In: TDX (Tesis Doctorals en Xarxa) (2017)
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The Effects of foreign-accented speech on language comprehension and retrieval processes
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In: TDX (Tesis Doctorals en Xarxa) (2016)
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The mechanisms and the scope of bilingual language production
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In: TDX (Tesis Doctorals en Xarxa) (2014)
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Abstract:
When bilinguals plan to speak even one word, lexicalization processes of the two languages becomes concurrently activated. Surprisingly, bilingual speech production is not dramatically affected. This observation raises the questions about the control mechanisms that ensure lexicalization in the intended language and their representational scope. The aim of this dissertation was to increment the general knowledge on these two aspects of bilingual language control. To do so, we measured behavioral, electrophysiological, and neural responses in language switching tasks to investigate the mechanisms and the scope of bilingual language control. Moreover, we measured behavioral and neural responses in linguistic and non-linguistic switching tasks to explore the overlap between bilingual language control and domain-general executive control. The most consistent findings of this dissertation suggest that the mechanisms of bilingual language control are different from domain-general inhibitory control and that they are applied globally on the dominant language and likely also locally on the non-dominant language. The evidence presented in the current dissertation not only extends previous knowledge on bilingual language control, but it also provides a clearer understanding of the role of inhibitory control in switching tasks, an information relevant for any model of bilingual language control. ; En el momento que los bilingües planean hablar, incluso si es sólo una palabra, los procesos de lexicalización se activan simultáneamente en ambas las lenguas. Sorprendentemente, la producción del habla bilingüe no se ve afectada de forma significativa. Esta observación plantea preguntas acerca de los mecanismos de control que garantizan la lexicalización en la lengua deseada así como su alcance. Esta tesis tiene como objetivo incrementar el conocimiento general sobre estos dos aspectos de control lingüístico en los bilingües. Para ello, en diferentes experimentos se midieron respuestas conductuales, electrofisiológicas y neuronales en tareas de cambio lingüísticas para investigar los mecanismos y el alcance del control de las lenguas. Además, se midieron las respuestas conductuales y neuronales en tareas de cambio lingüísticas y no lingüísticas para explorar el solapamiento entre el control lingüístico y el control ejecutivo de dominio general. Los hallazgos más consistentes de esta tesis sugieren que los mecanismos de control lingüístico en los bilingües son diferentes de control inhibitorio de dominio general y que se aplican a nivel global en la lengua dominante y probablemente también a nivel local en la lengua no dominante. La evidencia aportada en esta tesis no sólo extiende el conocimiento previo sobre el control lingüístico en los bilingües, sino que además proporciona una comprensión más clara sobre el papel del control inhibitorio en las tareas de cambio, una información relevante para cualquier modelo de control lingüístico bilingüe.
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Keyword:
81; Bilingual language control; Bilingualism; Bilingüismo; Control lingüístico en los bilingües; Event-Related-Potentials; Functional magnetic resonance imaging; Potenciales evocados; Resonancia magnética funcional; Switching tasks; Tareas de cambio
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URL: http://hdl.handle.net/10803/316582
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The impact of early bilingualism on controlling a language learned late: an ERP study
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| 7 |
The Bilingual cost in speech production : studies of phonological and articulatory processes
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In: TDX (Tesis Doctorals en Xarxa) (2012)
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The impact of bilingualism on the executive control and orienting networks of attention
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Phonological activation of non-produced words. The dynamics of lexical access in speech production
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In: TDX (Tesis Doctorals en Xarxa) (2007)
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Phonological activation of non-produced words. The dynamics of lexical access in speech production
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