Physics – Medical Physics
Scientific paper
2008-03-27
Dans Proceedings of the 5th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications - MAV
Physics
Medical Physics
Scientific paper
This paper presents predictions of the consequences of tongue surgery on speech production. For this purpose, a 3D finite element model of the tongue is used that represents this articulator as a deformable structure in which tongue muscles anatomy is realistically described. Two examples of tongue surgery, which are common in the treatment of cancers of the oral cavity, are modelled, namely a hemiglossectomy and a large resection of the mouth floor. In both cases, three kinds of possible reconstruction are simulated, assuming flaps with different stiffness. Predictions are computed for the cardinal vowels /i, a, u/ in the absence of any compensatory strategy, i.e. with the same motor commands as the one associated with the production of these vowels in non-pathological conditions. The estimated vocal tract area functions and the corresponding formants are compared to the ones obtained under normal conditions
Brix Muriel
Buchaillard Stéphanie
Payan Yohan
Perrier Pascal
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