Two studies investigated the presence of precursors of symbol formation in eight autistic children (nine years old) compared to matched retarded children. Results indicated that autistic Ss could form internal images but appeared to be unable to manipulate them in a purposeful and meaningful manner. (Author/CL)

Reviews the literature which presents theory and research that places early communicative development in the context of familiar experiences that occur over time. (BB)

In this research monograph, several areas of disparity between child and adult grammar are examined to discover at what ages the child, who is on the border of adult language competence, achieves a certain mastery of complex syntactic structures. Chapters include (1) a discussion of current notions on the nature of the linguistic process and a…

The study examined the relation of language use and logical thought to social experience with both age and class held constant. The primary assumptions under study were: that the logic of symbolic grouping was highly sensitive to a child's experience with the objects to which that logic was applied; that the existence of diglossia in a bilingual…