This article stands up for relationships among the concepts of Themata and of Topic ground, in order to develop a pragmatic approach to language. The Alceste method is an effective tool to operate this articulation. The clusters distribution that it detects reproduces the positions taken by different groups of speakers. The Topic ground contains Themata. The lexical oppositions, which the factorial analysis makes visible, correspond to the dichotomies, the polarities that keep in motion the inter-group relations. This pragmatic approach to language, through Alceste, provides all the information that the social psychologist needs to conceive one model capable to rescue the link between lexical worlds and inter-group relations.
themata; topic ground; pragmatics; social representation; alceste