Developmental changes in the expression of superordinates in children's word definitions were studied with 96 elementary school students. Superordination increased significantly and changed qualitatively with age, although across grades children produced more superordinates for nouns than for adjectives or verbs. (SLD)

This document reviews a number of recent studies written in French that investigate the nature of communication between 2-year-old infants and others. The review includes three parts. The first part focuses on studies aiming to constitute a behavioral catalog of the child. Characteristically, these studies offer a posteriori interpretations of…