Attempts to characterize and contrast aspects of functional organization of neuropsychological systems carrying out primary language acquisition and two types of nonprimary language acquisition: secondary language acquisition and foreign language learning. There appears an intrinsic neurofunctional basis for the greater facility of young children…

A discussion of the biological and developmental issues in early second language learning first looks at psycholinguistic research on brain growth patterns and the relationship of first and second language learning. Focus is on three phenomena observed in the self-organization of living systems: selection of input data; organization of specialized…

It has long been recognized that from the first months of life auditory perception plays a crucial role in speech and language development. Only in recent years, however, is the precise mechanism of auditory development and its interaction with the acquisition of speech and language beginning to be systematically revealed. This paper presents the…

The prelinguistic child's attempts at communication cannot be viewed as rudimentary language. More than cataloguing overt acts, we need to understand the functional character of both language and non-language communication capabilities, and in particular the maturational stages of the internal communication systems that produce overt behavior in…