Frank SeifartSciences du langage

Structure et Dynamique des Langues (SeDyL, CNRS / Inalco / IRD)

SHAPE - The system of shape representations in cognition, development and across languages 

This project investigates shape as a core spatial property of entities in the physical world of things which determines bodily action on objects. The abstract properties of shape are codified in multiple ways in the world’s varied languages, including spoken and signed languages – in object and category labels and their organisation into classes of categories, in spatial prepositions and verbs, and quantifying expressions. Visual shape perception and shape representation in early perceptual and cognitive development are inherently intertwined and interdependent with early language acquisition. Children on atypical developmental trajectories show a cascade of disrupted development in both shape perception and language that can have substantial life-long consequences. Despite this compelling evidence of the pervasiveness of shape, no theoretical account has been offered to explain its nature as a system, neither has this topic been approached integrating evidence and methodologies across disciplines. The main goal of the current endeavour is to provide such an account from the point of view of systems theory and aligning methodologies across vision research, cognitive development, theory of language and language typology and sign language. Our premise is that shape holds a privileged status in human representational systems – in perceiving, using and reasoning about objects and in organizing the structures of the world’s languages and, as such, is key to understanding human intelligence and its developmental trajectories.