Following a usage-based approach of language acquisition, the goal of this article is to make a detailed analysis of other and self-repairs targeting a French child's non-conventional productions between 1;09 and 4;0. The study's hypotheses were that (1) the mother would start by offering repairs and later in development use strategies to lead the…

This study investigates vocal imitation of prosodic contour in ongoing spontaneous interaction with 10- to 13-week-old infants. Audio recordings from naturalistic interactions between 20 mothers and infants were analyzed using a vocalization coding system that extracted the pitch and duration of individual vocalizations. Using these data, the…