Compositionnalité morphophonétique de la langue des signes française (LSF) et exploration des relations structurales entre paramètres

Cuxac’s Model predicts that each sign of the LSF lexicon is a combination of morphemic rather than phonemic values. This paper exposes the theoretical principles and conditions of falsifiability we propose to constitute an inventory of morphemic values, their assignation to the parametric components and, in fine, to establish which role is played by the different kinds of constraints exerted on lexical signs. The results we present come from the exploitation of a database including the whole standard signs of LSF. In this database, morphemic, parametric and infraparametric analysis is realized according to different frames of reference and points of view (ego/allocentric ; visual/physiological), leading to an original modellisation. These results corroborate the hypothesis of morphemic compositionality but they call into question the nature and status of current parameters and those of their mutual interdependencies. MOTS-CLÉS : LSF, iconicité, structuration morphophonétique, signes lexicaux, base de données, physiologie.