The Broca Wernicke Doctrine

This book discusses theories that link functions to specific anatomical brain regions. The best known of these are the Broca and Wernicke regions, and these have become synonyms for the location of productive and receptive language functions respectively. This Broca-Wernicke model has proved to be such a powerful concept that is remains the predominant view in modern clinical practice. What is fascinating, however, is that there is little evidence for this strictly localist view on language functions. Modern neuroscience and numerous clinical observations in individual patients show that language functions are represented in complex and ever-changing neural networks. It is fair to say that the model is wrong, and that Broca's and Wernicke's areas in their classic forms do not exist. This is a fascinating paradox: why do neurologists and neurosurgeons continue to use these iconic language models in everyday decision-making? In this book, the author uses his background as a neurosurgeon and a neuroscientist to provide some answers to this question. The book acquaints clinicians and researchers with the many different aspects of language representation in the brain. It provides a historical overview of functional localisation, as well as insights into the misjudgements that have kept the localist doctrine alive. It creates an awareness of the need to integrate clinical observations and neuroscientific theories if we want to progress further in clinical language research and patient care.

This book discusses theories that link functions to specific anatomical brain regions. The best known of these are the Broca and Wernicke regions, and these have become synonyms for the location of productive and receptive language functions respectively. This Broca-Wernicke model has proved to be such a powerful concept that is remains the predominant view in modern clinical practice. What is fascinating, however, is that there is little evidence for this strictly localist view on language functions. Modern neuroscience and numerous clinical observations in individual patients show that language functions are represented in complex and ever-changing neural networks. It is fair to say that the model is wrong, and that Broca’s and Wernicke’s areas in their classic forms do not exist. This is a fascinating paradox: why do neurologists and neurosurgeons continue to use these iconic language models in everyday decision-making? In this book, the author uses his background as a neurosurgeon and a neuroscientist to provide some answers to this question. The book acquaints clinicians and researchers with the many different aspects of language representation in the brain. It provides a historical overview of functional localisation, as well as insights into the misjudgements that have kept the localist doctrine alive. It creates an awareness of the need to integrate clinical observations and neuroscientific theories if we want to progress further in clinical language research and patient care.

An accessible introduction to the study of language in the brain, covering language processing, language acquisition, literacy, and language disorders. Neurolinguistics, the study of language in the brain, describes the anatomical structures (networks of neurons in the brain) and physiological processes (ways for these networks to be active) that allow humans to learn and use one or more languages. It draws on neuroscience, linguistics—particularly theoretical linguistics—and other disciplines. In this volume in the MIT Press Essential Knowledge series, Giosuè Baggio offers an accessible introduction to the fundamentals of neurolinguistics, covering language processing, language acquisition, literacy, and speech and language disorders. Baggio first surveys the evolution of the field, describing discoveries by Paul Broca, Carl Wernicke, Noam Chomsky, and others. He discusses mapping language in “brain time” and “brain space” and the constraints of neurolinguistic models. Considering language acquisition, he explains that a child is never a “blank slate”: infants and young children are only able to acquire specific aspects of language in specific stages of cognitive development. He addresses the neural consequences of bilingualism; literacy, discussing how forms of visual language in the brain differ from forms of auditory language; aphasia and the need to understand language disorders in behavioral, functional, and neuroanatomical terms; neurogenetics of language; and the neuroethology of language, tracing the origins of the neural and behavioral building blocks of human linguistic communication to the evolution of avian, mammalian, and primate brains.

New ways of understanding the brain – its nature, its capacities, its function, and its dysfunction – hold great promise for human wellbeing. Novel therapeutics spurred by this understanding have important roles addressing many clinical conditions, including Alzheimer Disease, depression, addiction, and obsessive-compulsive disorder. This unique title explores a wide range of groundbreaking sciences and clinical practices for brain-based conditions, including deep brain stimulation, optogenetics, technology-delivered therapies, predictive testing, and new clinical uses of ketamine, cannabis, and other psychoactive substances. An introduction to the imperative to develop new treatments for devastating brain disorders and the state of current therapeutics in psychiatry, addiction, and behavioral disorders is presented, and chapters from leading physician-scientists and neuroethicists outline the clinical and the ethical issues arising in innovation and in the creation of new therapeutics for brain diseases. Written by renowned thought leaders in their fields, the book presents tightly written contributions on novel qualitative and quantitative data from stakeholders in the field, including neuroscientist-clinicians, people living with mental illness and/or addictions, and oversight/policy stakeholders. Concise, anticipatory, and centered on the principles governing human biomedical research and innovation in developing novel therapeutics for brain disorders, Ethics and Clinical Neuroinnovation will be of great value to clinicians, researchers, and students from a vast array of backgrounds, including neuroethics, neuroscience, psychology, psychiatry, philosophy, entrepreneurship, and the law.

A contemporary and vibrant Deaf culture is found within Deaf communities, including Deaf Persons of Color and those who are DeafDisabled and DeafBlind. Taking a more people-centered view, the second edition of Deaf Culture: Exploring Deaf Communities in the United States critically examines how Deaf culture fits into education, psychology, cultural studies, technology, and the arts. With the acknowledgment of signed languages all over the world as bona fide languages, the perception of Deaf people has evolved into the recognition and acceptance of a vibrant Deaf culture centered around the use of signed languages and the communities of Deaf peoples. Written by Deaf and hearing authors with extensive teaching experience and immersion in Deaf cultures and signed languages, Deaf Culture fills a niche as an introductory textbook that is more inclusive, accessible, and straightforward for those beginning their studies of the Deaf-World. New to the Second Edition: *A new co-author, Topher González Ávila, MA *Two new chapters! Chapter 7 “Deaf Communities Within the Deaf Community” highlights the complex variations within this community Chapter 10 “Deaf People and the Legal System: Education, Employment, and Criminal Justice” underscores linguistic and access rights *The remaining chapters have been significantly updated to reflect current trends and new information, such as: Advances in technology created by Deaf people that influence and enhance their lives within various national and international societies Greater emphasis on different perspectives within Deaf culture Information about legal issues and recent political action by Deaf people New information on how Deaf people are making breakthroughs in the entertainment industry Addition of new vignettes, examples, pictures, and perspectives to enhance content interest for readers and facilitate instructor teaching Introduction of theories explained in a practical and reader-friendly manner to ensure understanding An updated introduction to potential opportunities for professional and informal involvement in ASL/Deaf culture with children, youth, and adults Key Features: *Strong focus on including different communities within Deaf cultures *Thought-provoking questions, illustrative vignettes, and examples *Theories introduced and explained in a practical and reader-friendly manner

Aphasia, Volume 185 covers important advances in our understanding of how language is processed in the brain and how lesions or degeneration in the left hemisphere affect language processing. This new release reviews research regarding how language recovers from brain injury, along with new interventions developed to enhance recovery, including language rehabilitation, noninvasive brain stimulation and medications. Sections cover neuroanatomy and neurophysiology of language networks, focus on mechanisms of recovery (and decline) of language, and include chapters on intervention, including recently developed behavioral therapies, brain stimulation, medications, and a review of studies of treatment for both post-stroke aphasia and primary progressive aphasia. Summarizes advances made in understanding language processing Discusses how lesions and brain degeneration affect language production and comprehension Identifies language networks based on functional imaging and lesion mapping Provides interventions for recovery, including brain stimulation, behavioral interventions and medication Explores post-stroke aphasia and primary progressive aphasia

The human brain has a truly remarkable capacity. It reorganizes itself, flexibly adjusting to fluctuating environmental conditions – a process called neuroplasticity. Neuroplasticity provides the basis for wide-ranging learning and memory processes that are particularly profuse during childhood and adolescence. At the same time, the exceptional malleability of the developing brain leaves it highly vulnerable to negative impact from the surroundings. Abusive or neglecting social environments, as well as socioeconomic deprivation and poverty, cause toxic stress and complex traumas that can severely compromise cognitive development, emotional processing, self-perception, and executive brain functions. The neurophysiological changes entailed impair emotional regulation, lead to heightened anxiety, and afflict attachment and the formation of social bonds. Neuroplastic changes following severely adverse experiences are not something that a person grows out of and gets over. These experiences alter the neurobiological and biochemical makeup and cause people to live in an emotionally relabeled world in which the evaluation of any social cue, their behavior, cognition, and state of mind are biased towards the negative. Even more worrying, detrimental neurophysiological consequences are not limited to the traumatized individual but are often transmitted to subsequent generations through a process of social niche construction, thereby creating a vicious cycle. Thus, the making and breaking forces of the brain are epitomized by parents, alloparents, peers, and our socioeconomic niche. This book expounds on the formative role that the social environment plays in healthy brain development, especially during infancy, childhood, and adolescence. Based on scientific findings, the book advocates for bold measures and responsible stewardship to combat child abuse, maltreatment, and child poverty. By bringing together insights from neuroscience, evolutionary biology, and social education work, it lays out a fact-based, transdisciplinary endeavor that aims at rising to the societal challenge of providing a rewarding perspective to youth at risk. It will be a valuable resource for academics from social education, pedagogy, cognitive science, neuroscience, as well as professionals in the fields of social work, pedagogy, education, child welfare.

This book examines the relationship between human language and biology in order to determine whether the biological foundations of language can offer deep insights into the nature and form of language and linguistic cognition. Challenging the assumption in biolinguistics and neurolinguistics that natural language and linguistic cognition can be reconciled with neurobiology, the author argues that reducing representation to cognitive systems and cognitive systems to neural populations is reductive, leading to inferences about the cognitive basis of linguistic performance based on assuming (false) dependencies. Instead, he finds that biological implementations of cognitive rather than the biological structures themselves, are the driver behind linguistic structures. In particular, this book argues that the biological roots of language are useful only for an understanding of the emergence of linguistic capacity as a whole, but ultimately irrelevant to understanding the character of language. Offering an antidote to the current thinking embracing ‘biologism’ in linguistic sciences, it will be of interest to readers in linguistics, the cognitive and brain sciences, and the points at which these disciplines converge with the computer sciences.