The ability to acquire language is a critical part of human development. Yet there is no consensus on how the skill emerges in early development. Does it constitute an innately-specified, language-processing module or is it acquired progressively? One of Annette Karmiloff-Smith's (1938-2016) key contributions to developmental science addresses…

In response to a previous article (Bialystok) on perspectives on the development of applied linguistics, this article begins by adding its own perspectives to what has already been offered. The article concludes by discussing the research agenda for the future. (Author/JL)

A major theoretical issue in the study of language processing and language acquisition is whether language development is independent of other aspects of cognitive development, encapsulated in a "language module." This issue is discussed as it relates to lexical processing. The paper begins with a historical contextualization of the modular view…

Suggests that Goad & Ingram's (1987) argument in favor of a cognitive model of phonological development failed to recognize the uniqueness of each individual's neural and vocal structures, ignored documented variability in the phonetic patterns of prelexical infants, and inexplicably assumed that inter-child variability implied the operation of…

Argues that further progress in applied linguistics and second-language acquisition will be achieved through collaboration with researchers in other fields. Three examples of research problems are provided that would profit from collaboration with applied linguists: the definition of language proficiency, the neural basis of language functioning,…

Analysis of the questions asked by normal children suggests that there are cognitive stages of question development. Samples of spontaneous questions asked by normal children and linguistically deviant children were compared in this study in order to determine if linguistically deviant (aphasic) children suffer primarily from a syntactic…

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…

Paralinguistic and kinesic expression begin at birth and are essential to the development of language. Rhythm, for example, a suprasegmental event, appears to be present at birth or prior to birth. The relationship of physiology to communication is evident in the observations of extra-linguistic aspects of communication, such as movement, the use…

Some very practical questions about how children learn the first language compel us to study brain functions and how these functions evolve. They also bring the studies of linguistics and neurology together. The purpose of this paper is to relate some of the research that describes language acquisition with the research about the early development…

This article hypothesizes that language repetition of young children (in the sense used by Kobashigawa and Snow) does not help language acquisition. The evidence comes from the results of a prior study in which no indication was found that mothers who repeat themselves a great deal have children who acquire language more quickly. However,…

This book provides an overview of research and thinking on age-related dimensions of language acquisition, intended for students, researchers, and educators with some experience in linguistics and applied linguistics. The first chapter introduces the variety of issues associated with age and language acquisition. Chapter 2 examines the evidence…