Toward An Evolutionary Biology Of Language

In this forcefully argued book, the leading evolutionary theorist of language draws on evidence from evolutionary biology, genetics, physical anthropology, anatomy, and neuroscience, to provide a framework for studying the evolution of human language and cognition. Philip Lieberman argues forcibly that the widely influential theories of language's development, advanced by Chomskian linguists and cognitive scientists, especially those that postulate a single dedicated language "module," "organ," or "instinct," are inconsistent with principles and findings of evolutionary biology and neuroscience. He argues that the human neural system in its totality is the basis for the human language ability, for it requires the coordination of neural circuits that regulate motor control with memory and higher cognitive functions. Pointing out that articulate speech is a remarkably efficient means of conveying information, Lieberman also highlights the adaptive significance of the human tongue. Fully human language involves the species-specific anatomy of speech, together with the neural capacity for thought and movement. In Lieberman's iconoclastic Darwinian view, the human language ability is the confluence of a succession of separate evolutionary developments, jury-rigged by natural selection to work together for an evolutionarily unique ability.

This book synthesizes much of the exciting recent research in the biology of language. Drawing on data from anatomy, neurophysiology, physiology, and behavioral biology, Philip Lieberman develops a new approach to the puzzle of language, arguing that it is the result of many evolutionary compromises. Within his discussion, Lieberman skillfully addresses matters as various as the theory of neoteny (which he refutes), the mating calls of bullfrogs, ape language, dyslexia, and computer-implemented models of the brain.

What is it that makes us human? This is one of the most challenging and important questions we face. Our species' defining characteristic is language - we appear to be unique in the natural world in having such an incredibly open-ended system for putting thoughts into words. If we are to truly understand ourselves as a species we must understand the origins of this strange and unique ability. To do so, we need to answer some of the most intriguing questions in contemporary scientific research: Where did language come from? How did it evolve? Why are we unique in possessing it? This book, for the first time, brings together the leading thinkers who are trying to unlock the puzzle of language evolution. Here we see the latest ideas and theories from fields as diverse as anthropology, archaeology, artificial life, biology, cognitive science, linguistics, neuroscience, and psychology. In a series of seventeen well-written and accessible chapters we get an unrivalled view of the state of the art in this exciting area. Current controversies are revealed and new perspectives uncovered, in a clear and readable guide to the latest theories. This collection marks a major step forward in our quest to understand the origins and evolution of human language. In doing so it sheds new light on the process of evolution, the workings of the brain, the structure of language, and - most importantly - what it means to be human. Language Evolution is essential reading for researchers and students working in the areas covered, and has been used as a textbook for courses in the field. It will also attract the general reader who wants to know more about this fascinating subject.

This is one of the first systematic attempts to bring language within the neo-Darwinian framework of modern evolutionary theory, without abandoning the vast gains in phonology and syntax achieved by formal linguistics over the past forty years. The contributors, linguists, psychologists, and paleoanthropologists, address such questions as: what is language as a category of behavior; is it an instrument of thought or of communication; what do individuals know when they know a language; what cognitive, perceptual, and motor capacities must they have to speak, hear, and understand a language? For the past two centuries, scientists have tended to see language function as largely concerned with the exchange of practical information. By contrast, this volume takes as its starting point the view of human intelligence as social, and of language as a device for forming alliances, in exploring the origins of the sound patterns and formal structures that characterize language.

This essay reflects on the fact that as we learn more about the biological underpinnings of our language faculty, the dominant evolutionary narrative coming out of the linguistic tradition most explicitly oriented towards biology ("biolinguistics") appears increasingly implausible. This text offers ways of opening up linguistic inquiry and fostering interdisciplinarity, taking advantage of new opportunities to provide quantitative, testable hypotheses concerning the complex evolutionary path that led to the modern human language faculty. The essay is structured around three main themes: (i) renewed appreciation for the comparative method applied to cognitive questions, leading to the identification of elementary but fundamental abstractions in non-linguistic species relevant to language; (ii) awareness of the conceptual gaps between disciplines, and the need to carefully link genotype and phenotype without bypassing any "intermediate" levels of description (certainly not the brain); and (iii) adoption of a "philosophical" outlook that puts the complexity of biological entities front and center.

In this forcefully argued book, the leading evolutionary theorist of language draws on evidence from evolutionary biology, genetics, physical anthropology, anatomy, and neuroscience, to provide a framework for studying the evolution of human language and cognition. Philip Lieberman argues forcibly that the widely influential theories of language's development, advanced by Chomskian linguists and cognitive scientists, especially those that postulate a single dedicated language "module," "organ," or "instinct," are inconsistent with principles and findings of evolutionary biology and neuroscience. He argues that the human neural system in its totality is the basis for the human language ability, for it requires the coordination of neural circuits that regulate motor control with memory and higher cognitive functions. Pointing out that articulate speech is a remarkably efficient means of conveying information, Lieberman also highlights the adaptive significance of the human tongue. Fully human language involves the species-specific anatomy of speech, together with the neural capacity for thought and movement. In Lieberman's iconoclastic Darwinian view, the human language ability is the confluence of a succession of separate evolutionary developments, jury-rigged by natural selection to work together for an evolutionarily unique ability.

This essay reflects on the fact that as we learn more about the biological underpinnings of our language faculty, the dominant evolutionary narrative coming out of the linguistic tradition most explicitly oriented towards biology ("biolinguistics") appears increasingly implausible. This text offers ways of opening up linguistic inquiry and fostering interdisciplinarity, taking advantage of new opportunities to provide quantitative, testable hypotheses concerning the complex evolutionary path that led to the modern human language faculty. The essay is structured around three main themes: (i) renewed appreciation for the comparative method applied to cognitive questions, leading to the identification of elementary but fundamental abstractions in non-linguistic species relevant to language; (ii) awareness of the conceptual gaps between disciplines, and the need to carefully link genotype and phenotype without bypassing any "intermediate" levels of description (certainly not the brain); and(iii) adoption of a "philosophical" outlook that puts the complexity of biological entities front and center.

This book provides a critical introduction to the current views and controversies regarding language evolution. It sheds new light on hot topics such as: How ancient is language? Did Neanderthals have some form of language? Did language evolve gradually and incrementally, through stages, or suddenly, in one leap, in all its complexity? Does language evolution involve natural selection or not? This book is essential reading for scholars and students interested in language evolution, especially those in the fields of linguistics, psychology, biology, anthropology, and neuroscience.