Développement de la parole et de la mastication : Evolution de la durée des cycles oscillatoires mandibulaires observés entre 8 et 14 mois chez 4 enfants québécois

Abstract

Speech and feeding development: A longitudinal study on 4 Quebecois French-speaking children between 8 and 14 months. Speech production and chewing are two motor activities characterized by rhythmic jaw oscillation, which appear throughout the first year of life. The aim of this study was to investigate the evolution of jaw temporal oscillation patterns during nutrition and speech between 8 and 14 months and to determine in which ways these patterns could interact. To address this issue, we monthly recorded 4 Canadian-French-speaking children during speech and meal activities at 8, 10, 12 and 14 months of age. Acoustic and video analyses indicate a significant difference between syllable duration and chewing cycle duration. These results could reflect the early mandible temporal rhythmic organization for chewing and speech. MOTS-CLES : babillage, mastication, acquisition, oscillations mandibulaires.