First Published in 1994. Routledge is an imprint of Taylor & Francis, an informa company.

Universal Grammar (UG) is a theory of both the fundamental principles for all possible languages and the language faculty in the "initial state" of the human organism. These two volumes approach the study of UG by joint, tightly linked studies of both linguistic theory and human competence for language acquisition. In particular, the volumes collect comparable studies across a number of different languages, carefully analyzed by a wide range of international scholars. The issues surrounding cross-linguistic variation in "Heads, Projections, and Learnability" (Volume 1) and in "Binding, Dependencies, and Learnability" (Volume 2) are arguably the most fundamental in UG. How can principles of grammar be learned by general learning theory? What is biologically programmed in the human species in order to guarantee their learnability? What is the true linguistic representation for these areas of language knowledge? What universals exist across languages? The two volumes summarize the most critical current proposals in each area, and offer both theoretical and empirical evidence bearing on them. Research on first language acquisition and formal learnability theory is placed at the center of debates relative to linguistic theory in each area. The convergence of research across several different disciplines -- linguistics, developmental psychology, and computer science -- represented in these volumes provides a paradigm example of cognitive science.

Universal Grammar (UG) is a theory of both the fundamental principles for all possible languages and the language faculty in the "initial state" of the human organism. These two volumes approach the study of UG by joint, tightly linked studies of both linguistic theory and human competence for language acquisition. In particular, the volumes collect comparable studies across a number of different languages, carefully analyzed by a wide range of international scholars. The issues surrounding cross-linguistic variation in "Heads, Projections, and Learnability" (Volume 1) and in "Binding, Dependencies, and Learnability" (Volume 2) are arguably the most fundamental in UG. How can principles of grammar be learned by general learning theory? What is biologically programmed in the human species in order to guarantee their learnability? What is the true linguistic representation for these areas of language knowledge? What universals exist across languages? The two volumes summarize the most critical current proposals in each area, and offer both theoretical and empirical evidence bearing on them. Research on first language acquisition and formal learnability theory is placed at the center of debates relative to linguistic theory in each area. The convergence of research across several different disciplines -- linguistics, developmental psychology, and computer science -- represented in these volumes provides a paradigm example of cognitive science.

An accessible introduction to learnability theory and its interactions with linguistic theories.

Universal Grammar (UG) is a theory of both the fundamental principles for all possible languages and the language faculty in the "initial state" of the human organism. These two volumes approach the study of UG by joint, tightly linked studies of both linguistic theory and human competence for language acquisition. In particular, the volumes collect comparable studies across a number of different languages, carefully analyzed by a wide range of international scholars. The issues surrounding cross-linguistic variation in "Heads, Projections, and Learnability" (Volume 1) and in "Binding, Dependencies, and Learnability" (Volume 2) are arguably the most fundamental in UG. How can principles of grammar be learned by general learning theory? What is biologically programmed in the human species in order to guarantee their learnability? What is the true linguistic representation for these areas of language knowledge? What universals exist across languages? The two volumes summarize the most critical current proposals in each area, and offer both theoretical and empirical evidence bearing on them. Research on first language acquisition and formal learnability theory is placed at the center of debates relative to linguistic theory in each area. The convergence of research across several different disciplines -- linguistics, developmental psychology, and computer science -- represented in these volumes provides a paradigm example of cognitive science.

Seminar paper from the year 2002 in the subject English Language and Literature Studies - Linguistics, grade: 1,3 (A), University of Cologne (English Seminar), course: Hauptseminar Syntactic theory and first language acquisition, language: English, abstract: Heather's (26 months old) speech shows that she has already entered the later multi-word stage. She makes use of the three primary functional category systems (the D-system, the I-system and the C-system), which are projections of the corresponding functional categories (D, I and C).The core assumption of the X-bar model is that any word category X can function as the head of a phrase and can be projected into the corresponding phrasal category XP by addition of up to three different kinds of modifiers which are full phrasal constituents: complement, adjunct and specifier. Therefore, phrases in English have the schematic structure below: [x'' specifier [x' adjunct [x' [x head] complement/s]]] Functional category systems, in contrast to lexical category systems, lack semantic content, but have grammatical meaning. Furthermore, functional elements permit only one complement. All of these functional category systems consist of a head, a complement and a nonthematic specifier position and so have a symmetrical structure. The following essay will describe these systems of English and the use of nonthematic specifier positions in adult grammar.

Syntactic Development presents a broad critical survey of the research literature on child language development. Giving balanced coverage to both theoretical and empirical issues, William O'Grady constructs an up-to-date picture of how children acquire the syntax of English. Part 1 offers an overview of the developmental data pertaining to a range of syntactic phenomena, including word order, subject drop, embedded clauses, wh-questions, inversion, relative clauses, passives, and anaphora. Part 2 considers the various theories that have been advanced to explain the facts of development as well as the learnability problem, reporting on work in the mainstream formalist framework but also considering the results of alternative approaches. Covering a wide range of perspectives in the modern study of syntactic development, this book is an invaluable reference for specialists in the field of language acquisition and provides an excellent introduction to the acquisition of syntax for students and researchers in psychology, linguistics, and cognitive science.