Étude des caractéristiques spatio-temporelles de la production de la parole chez des patients glossectomisés
Hasna Zaouali, Béatrice Vaxelaire, Christian Debry, Rudolph Sock
Résumé : This study examines the spatiotemporal characteristics of production of VCV sequences produced by glossectomized patients following endo-oral cancer. More specifically, it involves the analysing of the different acoustic parameters such as: (V1, VOT, VTT, silence, occlusion, V2), this investigation will allow us to report the consequences that a glossectomy have on the organization of the timing of articulatory gestures (Sock, 1998). Ten patients were recorded in several pre- and post-surgical phases (longitudinal study). The studied corpus consists of eight VCV sequences. It mainly concerns the observing from the acoustic signal, the various parameters which can be interpreted directly in articulatory terms, and then go back to the articulatory configurations. Statistical analysis showed significant changes in duration for all variables measured during post-surgical recording phases. An improvement appears gradually over time and the speech therapy rehabilitation that manifests for some patients bringing a return to the duration values initially recorded during the pre-surgical phase.
Mots clés : Speech pathology, Gossectomy, Acoustic analysis, Perturbations, Timing, VOT, VTT, Readjustments