Reports part of a continuing project to develop a theory of children's first-language acquisition using computer modeling techniques. Notes the correspondence of structures formed by the computer program with recognized structures in English. Discusses anomalies in the program's performance. (RL)

Data on the complexity of relative clause formation in children indicate that right embedding precedes central embedding in development. Previous research on the subject argues that configurations where coreferential NP's function as subjects are less complex than configurations where coreferential NP's function as objects. It appears that the…

The question is addressed whether a child would develop a communication system if a conventional linguistic model is absent. Six congenitally deaf children, who were not exposed to Sign Language, were observed and videotaped at play in their homes at intervals of one to three months. The children ranged in age from 1 year, 5 months to 4 years, 1…