The proactive bilingual brain: Using interlocutor identity to generate predictions for language processing
Fecha
2016Autor
Martin, Clara D.
Molnar, Monika
Carreiras, Manuel
Metadatos
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Martin, C. D. et al. The proactive bilingual brain: Using interlocutor identity to generate predictions for language processing. Sci. Rep. 6, 26171; doi: 10.1038/srep26171 (2016).
Resumen
The present study investigated the proactive nature of the human brain in language perception.
Specifically, we examined whether early proficient bilinguals can use interlocutor identity as a cue
for language prediction, using an event-related potentials (ERP) paradigm. Participants were first
familiarized, through video segments, with six novel interlocutors who were either monolingual
or bilingual. Then, the participants completed an audio-visual lexical decision task in which all the
interlocutors uttered words and pseudo-words. Critically, the speech onset started about 350 ms after
the beginning of the video. ERP waves between the onset of the visual presentation of the interlocutors
and the onset of their speech significantly differed for trials where the language was not predictable
(bilingual interlocutors) and trials where the language was predictable (monolingual interlocutors),
revealing that visual interlocutor identity can in fact function as a cue for language prediction, even
before the onset of the auditory-linguistic signal.