Maria Teresa Guasti

A comprehensive introduction to language acquisition based on current linguistic theory.

The Growth of Grammar

Language Acquisition

The new edition of a comprehensive introduction to a rapidly developing field, combining developmental data with theory. How do children begin to use language? How does knowledge of language emerge in early infancy, and how does it grow? This textbook offers a comprehensive introduction to knowledge acquisition, drawing on empirical evidence and linguistic theory. The theoretical framework used is the generative theory of Universal Grammar; students should have some familiarity with concepts in linguistic research. Aimed at upper-level undergraduate and graduate students, the book offers end-of-chapter summaries, key words, study questions, and exercises. This second edition has been thoroughly updated, with new content throughout. It has been reorganized according to the three main components of language acquisition. The computational components and the interfaces are covered in chapters on structure building in the verbal and nominal domains, movement-derived structure, and the relation between syntax and semantics and semantic and pragmatic. The sensory motor interface is treated in chapters on infants' perception of language and on the acquisition of words. The intentional-conceptual interface is discussed in chapters on the acquisition of words. This edition features additional cross-linguistic content, a new focus on brain imaging findings and the motor aspect of language, new material on Williams and Down Syndromes and dyslexia, and a new chapter on bilingualism, early second language acquisition, and bimodalism. Revisions reflect the burgeoning research in the field. New pedagogical features include chapter outlines, summaries of chapters, hypotheses, and linguistic milestones; methodological information; explanatory boxes; and suggestions for further reading.

Language Acquisition, second edition

Gary Morgan

Maria Garraffa

Theodoros Marinis

The language experience of children developing in linguistically diverse environments is subject to considerable variation both in terms of quantity and quality of language exposure. It is an open question how to investigate language exposure patterns and more important which factors are relevant for successful language learning. For example, children acquiring a minority language, including a signed language, are exposed to less variety of input than children acquiring a more global language. This is because they are living in a smaller linguistic community and with fewer occasions to use the language in everyday life. Despite this reduced input, most native signers are successful language learners. In contrast native language competence is not always achieved in signing deaf children with hearing parents or those with cochlear implants learning a spoken language. A similar outcome but with very different reasons has also been reported for hearing children with language impairment. In these populations acquisition of morphosyntactic aspects is developing atypically ending with an uncomplete linguistic repertoire. The circumstances of exposure during language development tend to differ in significant ways with respect to a large number of factors, such as, (i) length, quality and quantity of input, (ii) social status and attitudes toward the language, (iii) cognitive abilities required for language learning, and (iv) age of first exposure. Having early exposure to a range of different speakers is important in the acquisition of any language and may affect language proficiency. However, negative societal attitudes or a cognitive based disadvantage may create an unfavourable learning environment that prevents language learning from surfacing typically. This situation inevitably generates a different type of exposure for the child and consequently different language competence. In this Research Topic we intend to encourage the debate on social, linguistic and cognitive factors at play for designing an effective environment for language acquisition aiming at integrating linguistic variables coming from theoretical studies on language with environmental variables, such as, measures of language input or cognitive abilities on functions ancillary to language development.

Maria Teresa Guasti

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