“…While Bertrand et al on emotional talk (2000), Priego-Valverde on humour (1998,2001), Maury-Rouan on coenunciation (1998) and on discourse particles (2001b), Brémond on discourse structure and particles (2003) all used natural conversations as corpora, the model has also been successfully applied to literary discourse (Vion et al, 2002), media discourse in English (Rouveyrol, 1998), and doctor-patient interactions (Priego-Valverde and Maury-Rouan, 2003). Concepts were developed or introduced on the grounds of these various kinds of corpora: taxemes (Rouveyrol, 1999), hypocorrection (Maury-Rouan, 2001a), discourse structuration in general: on effacement strategies (Vion, 2001b), discourse instability (Vion, 2000), positioning changes (Vion, 2001b), taxemic markers (Rouveyrol, 1999), discourse lures (Maury-Rouan, 2001b, and modality (Vion, 2001a(Vion, , 2003. This article is intended to apply the model to a specific corpus consisting of the verbal productions of members of a scientific team experiencing adaptation to an extreme environment.…”