Jean-Philippe Lachaux

Unité Dynamique Cérébrale et Cognition, INSERM U821, Lyon

Session JEP orale O6   Production et perception   Vendredi 13 Juin - 10h30 12h30

• papier 1611 Un circuit pariéto-frontal des bascules perceptives en parole : une étude iEEG


• Anahita Basirat  ( GIPSA-Lab/ICP, CNRS UMR 5216, Grenoble INP, Université Joseph Fourier, Université Stendhal, Grenoble)
• Marc Sato  ( GIPSA-Lab/ICP, CNRS UMR 5216, Grenoble INP, Université Joseph Fourier, Université Stendhal, Grenoble)
• Jean-Luc Schwartz  ( GIPSA-Lab/ICP, CNRS UMR 5216, Grenoble INP, Université Joseph Fourier, Université Stendhal, Grenoble)
• Philippe Kahane  ( Département de Neurologie et Psychiatrie & INSERM U836-UJF-CEA, Hôpital Michallon, Grenoble et 4 CTRS-IDEE, Hospices Civils de Lyon)
• Jean-Philippe Lachaux  ( Unité Dynamique Cérébrale et Cognition, INSERM U821, Lyon)
• Résumé : The verbal transformation effect refers to perceptual alternations while listening to a speech sequence repeated rapidly. This effect is a rich source of information about the speech processing mechanism in the brain. In addition, the verbal transformation effect provides a tool for studying the mechanisms related to attention and decision making (including speech segmentation). In this work, using intracerebral EEG recordings from two epileptic patients, we find gamma activity related to verbal transformations in the left inferior frontal and the left supramarginal gyri. We discuss these findings in relation to perceptuo-motor linkes and dorsal circuit of speech perception. We also discuss the linke with a possible parieto-frontal circuit, already displayed in other perceptual takes.
• article



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