Etayage de l'adulte et multimodalité : étude exploratoire des modalités d'interaction dans le cadre d'une prise en charge d'un enfant avec retard de langage

The aim of this article is to explore adult/child interactions in a therapeutic situation with an augmentative communication that integrates vocal, gestural and visual modes. This study has an interactionist and multimodal approach of language acquisition. Based on ecological and video data of a child with language delay from 3;09 to 4;05, we analyse efficient conditions for the process of language acquisition. On the one hand, we showed how multimodality created by the situation is part of adults' strategies in order to facilitate linguistics forms and, on the other hand, how some modalities of interaction are more efficient than others (i.e. expansions and extensions). The purpose is to establish scaffolding and adjustment schemes that contribute to the emergence of language, in addition to the multimodal support.