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SZABADOS Andrew

Uncontrolled manifolds and short-delay reflexes in speech motor control: a modeling study

 

Directeur de thèse :     Pascal PERRIER

École doctorale : Ingénierie pour la santé, la cognition et l''environnement (edisce)

Spécialité :

Structure de rattachement : UJF

Établissement d'origine :

Financement(s) : bourse attribuée par un gouvernement étranger

 

Date d'entrée en thèse : 01/01/2014

Date de soutenance : 27/11/2017

 

Composition du jury :
Gregor SCHÖNER, Université Bochum, Allemagne, Rapporteur
Yves LAPRIE, LORIA, Nancy, Rapporteur
Susanne FUCHS, ZAS, Berlin, Allemagne, Examinatrice
Béatrice VAXELAIRE, Université de Strasbourg, Examinatrice
Rafael LABOISSIERE, LPNC, Examinateur
Takayuki ITO, GIPSA-Lab, Examinateur
Pascal PERRIER, Gipsa-lab, Directeur de Thèse

 

Résumé : This thesis summarizes two studies involving a biomechanical model of the vocal tract for the purpose of answering several open questions in the area of speech motor control. First, the concept of uncontrolled manifolds, previously proposed as a tool for understanding the structure of variability in sensorimotor tasks, was adapted to the context of speech and a series of simulations was performed to test its usefulness. Second, the role of short-delay reflexes, such as the stretch-reflex, in stabilizing the tongue during external perturbations was investigated. This was done by simulating an external force perturbation in coordination with a similar study performed on human subjects. The model was the modified to gain further insight into the question.


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