This dissertation forms part of the set of files I had to produce for my "Habilitation à Diriger des Recherches" degree in June 2014. Habilitation is required in French academia, for one to be entitled to supervise students. This 150-page document answers the requirement, within the Habilitation, to write (in French) a synthesis of my work and publications since I began my career as a linguist (1997-2014).
Ce mémoire appartient au dossier d'"Habilitation à diriger des recherches", que j'ai soutenue en juin 2014. Il s'agit d'une synthèse de ma recherche et de mes publications depuis le début de ma carrière (1997-2014).