The development status of the communicatory behavior of 11 autistic children (4 to 9 years old) was assessed during free play sessions under two conditions: when teachers were present to direct the children's behavior and when teachers were absent and the children played among themselves. (Author)

This collection of conference abstracts focuses on new directions for research on mental representation and early language development. One page summaries are provided on the following topics: Mental Representation and Initial Language Learning, by Lorraine M. Nicolich; Critical Issues in Language and Cognitive Development, by Roberta Corrigan;…

An experiment demonstrating that children in Piaget's preoperational stage, who generally still cannot give conceptually correct answers to questions about rate and time, evidence an ability to imitate a given rate-time relationship demonstrated by the experimenter. (ST)

Case studies examined impact of early intervention on the rate of acquisition of communicative and linguistic behaviors for a small group of severely and profoundly deaf infants. Found that infants who were diagnosed and used amplification by six months of age acquired vocal and linguistic skills at an age more comparable to hearing peers than did…