CE28 - Cognition, éducation, formation

Speech Production Stability: contributions and interactions of somatosensory and auditory feedback in on-line compensation – SpeechStab

Submission summary

Speech production stability is crucial for efficient speech communication in basic daily situations. While auditory and somatosensory feedback contribute to speech motor control, it is still unknown how these sensory inputs interact to ensure the required stability. Our hypotheses are 1) that somatosensory feedback plays a predominant role in quick on-line compensation due to shorter response latency than auditory feedback, and 2) that the somatosensory-based stability mechanism is acquired during speech development to achieve speech-relevant auditory goals. We examine those hypotheses by measuring tongue posture stabilization in sensory-intact and sensory-impaired individuals in behavioral tests using tongue perturbations and by comparing the performance across subject groups. Simulations with a biomechanical tongue model are used to help interpret the observations. Our project will provide clues as to the mechanisms that enable speech production stability using sensory feedback.

Project coordination

Takayuki ITO (Grenoble Images Parole Signal Automatique)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


ISM Institut des sciences du mouvement - Etienne-Jules Marey
GIPSA-lab Grenoble Images Parole Signal Automatique

Help of the ANR 304,718 euros
Beginning and duration of the scientific project: October 2021 - 48 Months

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