International Conference on Auditory-Visual Speech Processing 2008

Tangalooma Wild Dolphin Resort, Moreton Island, Queensland, Australia
September 26-29, 2008

Listening While Speaking: New Behavioral Evidence for Articulatory-to-Auditory Feedback Projections

Marc Sato (1), Emilie Troille (1,3), Lucie Ménard (2,6), Marie-Agnès Cathiard (3), Vincent Gracco (4,5,6)

(1) GIPSA-LAB, Département Parole & Cognition, Grenoble Universités, Grenoble, France
(2) Département de Linguistique, Université du Québec à Montréal, Montréal, Canada
(3) Centre de Recherche sur l’Imaginaire, Université Stendhal, Grenoble, France
(4) School of Communication Sciences and Disorders, McGill University, Montreal, Canada
(5) Center for Research on Language, Mind and Brain, Montreal, Canada
(6) Haskins Laboratories, New Haven, USA

The existence of feedback control mechanisms from motor to sensory systems is a central idea in speech production research. Consistent with the view that articulation modulates the activity of the auditory cortex, it has been shown that silent articulation improved identification of concordant speech sounds [1]. In the present study, we replicated and extended this finding by demonstrating that, even in the case of perfect perceptual identification, concurrent mouthing of a syllable may speed the perceptual processing of auditory and auditoryvisual speech stimuli. These results provide new behavioral evidence for the existence of motor-to-sensory discharge in speech production and suggest a functional connection between action and perception systems.

Reference

  1. Sams, M., Möttönen, R. and Sihvonen, T., "Seeing and hearing others and oneself talk", Brain Res Cogn Brain Res., 23:429- 435, 2005.

Full Paper

Bibliographic reference.  Sato, Marc / Troille, Emilie / Ménard, Lucie / Cathiard, Marie-Agnès / Gracco, Vincent (2008): "Listening while speaking: new behavioral evidence for articulatory-to-auditory feedback projections", In AVSP-2008, 199-204.