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Neural oscillations track natural but not artificial fast speech: Novel insights from speech-brain coupling using MEG
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In: ISSN: 1053-8119 ; EISSN: 1095-9572 ; NeuroImage ; https://hal.archives-ouvertes.fr/hal-03373459 ; NeuroImage, Elsevier, 2021, 244, pp.118577. ⟨10.1016/j.neuroimage.2021.118577⟩ (2021)
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Neural oscillations track natural but not artificial fast speech: Novel insights from speech-brain coupling using MEG
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In: https://hal.archives-ouvertes.fr/hal-03041194 ; 2020 (2020)
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Task-Modulated Corticocortical Synchrony in the Cognitive-Motor Network Supporting Handwriting
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Shifts from normal to fast speech are associated with corresponding shifts in the frequency of neuronal entrainment: An MEG study
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In: BIOMAG 2016: The 20th international conference on biomagnetism ; https://hal.archives-ouvertes.fr/hal-02613456 ; BIOMAG 2016: The 20th international conference on biomagnetism, Oct 2016, Séoul, South Korea (2016)
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Tracking of speech rhythm by neuronal oscillations: an MEG study on natural fast speech perception
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In: 11ème Colloque de la Société des Neurosciences ; https://hal-univ-paris.archives-ouvertes.fr/hal-01240604 ; 11ème Colloque de la Société des Neurosciences, May 2013, Lyon, France (2013)
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Neural Interactions at the Core of Phonological and Semantic Priming of Written Words
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Neural Interactions at the Core of Phonological and Semantic Priming of Written Words
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Abstract:
Word processing is often probed with experiments where a target word is primed by preceding semantically or phonologically related words. Behaviorally, priming results in faster reaction times, interpreted as increased efficiency of cognitive processing. At the neural level, priming reduces the level of neural activation, but the actual neural mechanisms that could account for the increased efficiency have remained unclear. We examined whether enhanced information transfer among functionally relevant brain areas could provide such a mechanism. Neural activity was tracked with magnetoencephalography while subjects read lists of semantically or phonologically related words. Increased priming resulted in reduced cortical activation. In contrast, coherence between brain regions was simultaneously enhanced. Furthermore, while the reduced level of activation was detected in the same area and time window (superior temporal cortex [STC] at 250–650 ms) for both phonological and semantic priming, the spatiospectral connectivity patterns appeared distinct for the 2 processes. Causal interactions further indicated a driving role for the left STC in phonological processing. Our results highlight coherence as a neural mechanism of priming and dissociate semantic and phonological processing via their distinct connectivity profiles.
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Keyword:
Article
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URL: http://cercor.oxfordjournals.org/cgi/content/short/bhr307v1 https://doi.org/10.1093/cercor/bhr307
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Modulation of Brain Activity after Learning Predicts Long-Term Memory for Words
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