This volume aims to provide a broad view of second language acquisition within a comparative perspective that addresses results concerning adult and child learners across a variety of source and target languages. It brings together contributions at the forefront of language acquisition research that consider a wide range of open questions: What are the precise mechanisms underlying acquisition? How can we characterize learners’ initial state and predict their degree of final achievement? What role do specific (typological) properties of source and target languages play? How does fossilization occur? How does the relative complexity of cognitive systems in adult and child learners affect acquisition? Does language learning influence cognitive organization? Can language learning shed light on our general understanding of human language and language processing?

In recent years the field has seen an increasing realisation that the full complexity of language acquisition demands theories that (a) explain how children integrate information from multiple sources in the environment, (b) build linguistic representations at a number of different levels, and (c) learn how to combine these representations in order to communicate effectively. These new findings have stimulated new theoretical perspectives that are more centered on explaining learning as a complex dynamic interaction between the child and her environment. This book is the first attempt to bring some of these new perspectives together in one place. It is a collection of essays written by a group of researchers who all take an approach centered on child-environment interaction, and all of whom have been influenced by the work of Elena Lieven, to whom this collection is dedicated.

This book presents a comprehensive, state-of-the-art treatment of the acquisition of Indo- and Non-Indo-European languages in various contexts, such as L1, L2, L3/Ln, bi/multilingual, heritage languages, pathology as well as language impairment, and sign language acquisition. The book explores a broad mix of methodologies and issues in contemporary research. The text presents original research from several different perspectives, and provides a basis for dialogue between researchers working on diverse projects with the aim of furthering our understanding of how languages are acquired. The book proposes and refines new theoretical constructs, e.g. regarding the complexity of linguistic features as a relevant factor forming children’s, adults’ and bilingual individuals’ acquisition of morphological, syntactic, discursive, pragmatic, lexical and phonological structures. It appeals to students, researchers, and professionals in the field.

The theory of language acquisition is a young but increasingly active field. Language Acquisition and Syntactic Theory presents one of the first detailed studies of comparative syntax acquisition. It is informed by the view that linguists and acquisitionists are essentially working on the same problem, that of explaining grammar learnability. The author takes cross-linguistic data from child language as evidence for recent proposals in syntactic theory. Developments in the structure of children's sentences during the first few years of life are traced to changes in the setting of specific grammatical parameters. Some surprising differences between the early child grammars of French and English are uncovered, differences that can only be explained on the basis of subtle distinctions in inflectional structure. This motivates the author's claim that functional or nonthematic categories are represented in the grammars of very young children. The book also explores the relationship between acquisition and diachronic change in French and English. It is argued that findings in acquisition, when viewed from a parameter setting perspective, provide answers to important questions arising in the study of language change. The book promises to be of interest to all those involved in the formal, psychological or historical study of linguistic knowledge.

This book deals with the phenomenon of third language (L3) acquisition. As a research field, L3 acquisition is established as a branch of multilingualism that is concerned with how multilinguals learn additional languages and the role that their multilingual background plays in the process of language learning. The volume points out some current directions in this particular research area with a number of studies that reveal the complexity of multilingual language learning and its typical variation and dynamics. The eight studies gathered in the book represent a wide range of theoretical positions and offer empirical evidence from learners belonging to different age groups, and with varying levels of proficiency in the target language, as well as in other non-native languages belonging to the learner’s repertoire. Diverse linguistic phenomena and language combinations are viewed from a perspective where all previously acquired languages have a potential role to play in the process of learning a new language. In the six empirical studies, contexts of language learning in school or at university level constitute the main outlet for data collection. These studies involve several language backgrounds and language combinations and focus on various linguistic features. The specific target languages in the empirical studies are English, French and Italian. The volume also includes two theoretical chapters. The first one conceptualizes and describes the different types of multilingual language learning investigated in the volume: i) third or additional language learning by learners who are bilinguals from an early age, and ii) third or additional language learning by people who have previous experience of one or more non-native languages learned after the critical period. In particular, issues related to the roles played by age and proficiency in multilingual acquisition are discussed. The other theoretical chapter conceptualizes the grammatical category of aspect, reviewing previous studies on second and third language acquisition of aspect. Different models for L3 learning and their relevance and implications for representations of aspect and for potential differences in the processing of second and third language acquisition are also examined in this chapter. As a whole, the book presents current research into third or additional language learning by young learners or adults, considering some of the most important factors for the complex process of multilingual language learning: the age of onset of the additional language and that of previously acquired languages, social and affective factors, instruction, language proficiency and literacy, the typology of the background languages and the role they play in shaping syntax, lexicon, and other components of a L3. The idea for this book emanates from the symposium Multilingualism, language proficiency and age, organized by Camilla Bardel and Laura Sánchez at Stockholm University, Department of Language Education, in December 2016.

In this volume, Eve V. Clark takes a comprehensive look at where and when children acquire a first language. All the major findings and debates are presented in a highly readable form.

Most studies of gender differences in language use have been undertaken from exclusively either a sociocultural or a biological perspective. By contrast, this innovative volume places the analysis of language and gender in the context of a biocultural framework, examining both cultural and biological sources of gender differences in language, as well as the interaction between them. The first two parts of the volume on cultural variation in gender-differentiated language use, comparing Western English-speaking societies with societies elsewhere in the world. The essays are distinguished by an emphasis on the syntax, rather than style or strategy, of gender-differentiated forms of discourse but also often carry out the same forms differently through different choices of language form. These gender differences are shown to be socially organized, although the essays in Part I also raise the possibility that some cross-cultural similarities in the ways males and females differentially use language may be related to sex-based differences in physical and emotional makeup. Part III examines the relationship between language and the brain and shows that although there are differences between the ways males and females process language in the brain, these do not yield any differences in linguistic competence or language use. Taken as a whole, the essays reveal a great diversity in the cultural construction of gender through language and explicity show that while there is some evidence of the influence of biologically based sex differences on the language of women and men, the influence of culture is far greater, and gender differences in language use are better accounted for in terms of culture than in terms of biology. The collection will appeal widely to anthropologists, psychologists, linguists, and other concerned with the understanding of gender roles.