Les cartes sensorimotrices de la parole : Corrélats neurocognitifs et couplage fonctionnel des systèmes de perception et de production des voyelles du Français

Abstract : SENSORIMOTOR MAPS OF SPEECH: Neurocognitive correlates and functional coupling of French vowel perception and production systems --- Speech is built on a set of correspondences between sensory and articulatory representations, especially during the acquisition of language in the early years of life. Using functional magnetic resonance imaging, the primary goal of our work was to determine, in adults, a possible functional coupling of French vowel perception and production systems, as elementary speech units. In parallel, our work should help clarify the brain structures related to the orofacial motor control of simple supralaryngeal movements and to determine a possible causal contribution of sensory and motor regions during speech perception. Our work highlights the involvement of sensory and motor areas when performing orofacial gestures and during vowel production and perception. Adaptive effects of these motor, auditory and somatosensory regions during repeated orofacial movements and in vowel perception and production suggest the existence of common adaptive mechanisms involved in the online control of perceived and produced speech gestures. Finally, we demonstrated a causal and functional role of the sensorimotor regions of the dorsal pathway in speech categorization. Taken together, our results emphasize the distributed sensorimotor nature of cerebral representations of speech units. Key words: speech perception and production, vowels, orofacial motor control, sensorimotor interactions, neurocognitive representations and maps, fMRI, TMS.
Document type :
Theses
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-00753249
Contributor : Abes Star <>
Submitted on : Monday, September 9, 2013 - 12:47:11 PM
Last modification on : Monday, October 8, 2018 - 9:02:01 PM
Long-term archiving on : Tuesday, December 10, 2013 - 4:27:44 AM

File

GrabskiK-2012These.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00753249, version 2

Citation

Krystyna Grabski. Les cartes sensorimotrices de la parole : Corrélats neurocognitifs et couplage fonctionnel des systèmes de perception et de production des voyelles du Français. Médecine humaine et pathologie. Université de Grenoble, 2012. Français. ⟨NNT : 2012GRENS017⟩. ⟨tel-00753249v2⟩

Share

Metrics

Record views

616

Files downloads

399