Presents two models of language acquisition: one postulating articulatory learning of underlying adult forms and the other both articulatory and perceptual learning. Reanalyzes the first model's data and concludes that two types of phonological rules are recognizable: perceptual-encoding rules and output (articulatory) rules. Identifies properties…

Progress in an extensive, linguistically oriented program of research on child language development is reported. The ultimate purpose of the research is to contribute to a general theory of human language behavior; more immediate goals are the increased understanding of language development processes and improved characterizations of particular…

Suggests a parallelism between children's mastery of mental language and their thinking about the world. Recounts a study in which children's mastery of verbs was measured and a relationship between reading skill and looking to the text to justify answers was established. (AEW)

A review of research leads to the proposal that infants' perception of "fragile" contrasts is lost due to their lack of exposure to particular sounds. Perception of "robust" contrasts is lost around the onset of formal language training due to children's lack of experience with phonologically irrelevant sounds. (Author/CB)

Research on reading has tried, and failed, to account for wide disparities in reading skill even among children taught by the same method. Why do some children learn to read easily and quickly while others, in the same classroom and taught by the same teacher, don't learn to read at all? In "Language Development and Learning to Read", Diane…