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The Influence of language categorization on face perception
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In: TDX (Tesis Doctorals en Xarxa) (2019)
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The role of learning on bilinguals’ lexical architecture: beyond separated vs. integrated lexicons
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The Neural basis of free language choice in bilingual speakers: disentangling language choice and language execution
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Holiday or vacation? The processing of variation in vocabulary across dialects
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Anticipation processes in L2 speech comprehension: Evidence from ERPs and lexical recognition task
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The cortical dynamics of speaking: Lexical and phonological knowledge simultaneously recruit the frontal and temporal cortex within 200 ms
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Abstract:
Language production models typically assume that retrieving a word for articulation is a sequential process with substantial functional delays between conceptual, lexical, phonological and motor processing, respectively. Nevertheless, explicit evidence contrasting the spatiotemporal dynamics between different word production components is scarce. Here, using anatomically constrained magnetoencephalography during overt meaningful speech production, we explore the speed with which lexico-semantic versus acoustic-articulatory information of a to-be-uttered word become first neurophysiologically manifest in the cerebral cortex. We demonstrate early modulations of brain activity by the lexical frequency of a word in the temporal cortex and the left inferior frontal gyrus, simultaneously with activity in the motor and the posterior superior temporal cortex reflecting articulatory-acoustic phonological features (+LABIAL vs. +CORONAL) of the word-initial speech sounds (e.g., Monkey vs. Donkey). The specific nature of the spatiotemporal pattern correlating with a word's frequency and initial phoneme demonstrates that, in the course of speech planning, lexico-semantic and phonological-articulatory processes emerge together rapidly, drawing in parallel on temporal and frontal cortex. This novel finding calls for revisions of current brain language theories of word production. ; We thank Elin Runnqvist for her useful comments on previous versions of the manuscript and we are grateful to Max Garagnani, Yuri Shtyrov and Olaf Hauk for the technical help with the MEG analyses. Kristof Strijkers received funding for this research from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007–2013) under REA grant agreement number 302807, and from the French Ministry of Research (grant number: ANR16-CE28-0007-01)
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Keyword:
Language; MEG; Sensorimotor circuits; Spatiotemporal brain activity; Speech production
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URL: https://doi.org/10.1016/j.neuroimage.2017.09.041 http://hdl.handle.net/10230/47783
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How do you know I was about to say “book”? Anticipation processes affect speech processing and lexical recognition
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The Cortical dynamics of speaking: present shortcomings and future avenues
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Foreigner talk through word reduction in native/non-native spoken interactions
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Processing advantage for emotional words in bilingual speakers
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When the tail counts: the advantage of bilingualism through the ex-gaussian distribution analysis
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World knowledge integration during second language comprehension
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The impact of early bilingualism on controlling a language learned late: an ERP study
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