Verbal and nonverbal components of pointing initiation by Down's Syndrome children when looking at books were studied. Analysis of initiation patterns and point duration revealed possible developmental progression from a stage where point and exchange duration are linked to a stage where pointing becomes more detached from the exchange. (21…

Two transitional phases in the child's early language development are described; the first occurs between prelinguistic vocalization and one-word speech and the second between one-word and patterned speech. Cognitive, linguistic and affective inputs to the acquisition of reference and syntax are discussed in the light of the transitional…

Data on the development of fundamental frequency patterns and the emergence of semantic relations during the "one word period" in child language development are reported in this study. The research focuses on the changes that occur as children progress from producing single words to sequences of single words and finally to producing…

Up to the present, no studies have been done in the area of child language in Mexico. The Center of Linguistic and Literary Studies of the Colegio de Mexico carried out an empirical investigation of the language of six- to seven-year-old Mexican children. This paper presents, in preliminary form, some partial results of the investigation,…

A study of overregularized use of verbs by two children over a period when they were 2 1/2 to 5 years of age shows overregularizations in two directions: non-causative verbs were used as causatives; and causative verbs were used non-causatively. According to terminology from logic, predicates were classified according to the number of noun-phrase…

Investigators agree that mothers employ a variety of request forms and that children seem to be able to respond to these forms with a remarkable degree of accuracy. It is suggested that the speech of mothers to their children is filled with requests which are really not requests at all. It is shown that many of what appear to be adult requests to…

This study proposes that children's phonological behavior at Stage VI of sensorimotor development may show markedly decreased variability compared to children at Stage V. According to Piaget, sensorimotor development during Stage VI is distinguished from preceding stages by the onset of representational ability and ability to form mental…

This study considers the interaction of syntactic and pragmatic factors (social and cognitive) in children's production of coordinate structures involving conjunction reduction. Two aspects of pragmatic context were considered: (1) the pattern of uncertainty or redundancy in a complex action sequence, and (2) the perceptual grouping of objects…

This paper investigates the development of negative Wh-questions in a four year old subject acquiring English as her L1. Spontaneous and elicited speech samples were collected over a period of 6 months. During the course of the study, the subject began to invert subject and auxiliary, and by the end of the study she was inverting correctly in 38%…