The Research Of Bilingual Aphasia And Its Contribution To The Study Of Multiple Languages In One Brain

Seminar paper from the year 2007 in the subject English Language and Literature Studies - Linguistics, grade: 1.0, Justus-Liebig-University Giessen, language: English, abstract: At present, approximately two thirds of the world’s population is bilingual. Globalisation, migration and decreasing gaps between different cultures and countries make the ability to speak two or more languages necessary, and, consequently, the number of bilingual people increases steadily. The ever-increasing, significant number of people speaking two or more languages has caused high interest, among psychologists, educators and also psycholinguists, in the cognitive and cerebral study of the bilingual. An important part of the research is the study of bilingual aphasia, meaning the loss of the capability to comprehend and/or speak a language, either totally or in part, which is a result of brain injuries often caused by diseases, such as strokes or tumours, war injuries or car accidents (cf. Myers-Scotton 2006: 317). Studying bilingual aphasia and its impacts on the bilingual’s different languages contributes to finding an answer to the question of how two or more languages are organised and represented in the brain. In so doing, this field of research posits hypotheses concerning the cerebral organisation of language in general and the parts of the brain which function for its production. After having defined the terms bilingualism and bilingual, which is a necessary prerequisite to avoid confusing ambiguities in the following text, this essay will illustrate the most common patterns of language recovery and their relative incidence. This illustration will be followed by an overview of early suggested and attempted explanations for the questions about which brain mechanisms are responsible for the various patterns, why a certain patient shows a certain recovery pattern and why one language in some cases remains more intact than the other, or why sometimes one is preserved, while the other is lost entirely. Finally, the essay will outline the findings of recent research and their contribution to the cognitive study of language.

Seminar paper from the year 2007 in the subject English Language and Literature Studies - Linguistics, grade: 1.0, Justus-Liebig-University Giessen, language: English, abstract: At present, approximately two thirds of the world's population is bilingual. Globalisation, migration and decreasing gaps between different cultures and countries make the ability to speak two or more languages necessary, and, consequently, the number of bilingual people increases steadily. The ever-increasing, significant number of people speaking two or more languages has caused high interest, among psychologists, educators and also psycholinguists, in the cognitive and cerebral study of the bilingual. An important part of the research is the study of bilingual aphasia, meaning the loss of the capability to comprehend and/or speak a language, either totally or in part, which is a result of brain injuries often caused by diseases, such as strokes or tumours, war injuries or car accidents (cf. Myers-Scotton 2006: 317). Studying bilingual aphasia and its impacts on the bilingual's different languages contributes to finding an answer to the question of how two or more languages are organised and represented in the brain. In so doing, this field of research posits hypotheses concerning the cerebral organisation of language in general and the parts of the brain which function for its production. After having defined the terms bilingualism and bilingual, which is a necessary prerequisite to avoid confusing ambiguities in the following text, this essay will illustrate the most common patterns of language recovery and their relative incidence. This illustration will be followed by an overview of early suggested and attempted explanations for the questions about which brain mechanisms are responsible for the various patterns, why a certain patient shows a certain recovery pattern and why one language in some cases remains more intact than the other, or why sometimes one is preserved, while the oth

This volume presents a broad overview of current research and thought on aphasia in individuals who speak more than one language. The range of topics covered, and their in-depth treatment, should be of interest to researchers, clinicians, and students.

This volume is the outcome of 25 years of research into the neurolinguistic aspects of bilingualism. In addition to reviewing the world literature and providing a state-of-the-art account, including a critical assessment of the bilingual neuroimaging studies, it proposes a set of hypotheses about the representation, organization and processing of two or more languages in one brain. It investigates the impact of the various manners of acquisition and use of each language on the extent of involvement of basic cerebral functional mechanisms. The effects of pathology as a means to understanding the normal functioning of verbal communication processes in the bilingual and multilingual brain are explored and compared with data from neuroimaging studies. In addition to its obvious research benefits, the clinical and social reasons for assessment of bilingual aphasia with a measuring instrument that is linguistically and culturally equivalent in each of a patient’s languages are stressed. The relationship between language and thought in bilinguals is examined in the light of evidence from pathology. The proposed linguistic theory of bilingualism integrates a neurofunctional model (the components of verbal communication and their relationships: implicit linguistic competence, metalinguistic knowledge, pragmatics, and motivation) and a set of hypotheses about language processing (neurofunctional modularity, the activation threshold, the language/cognition distinction, and the direct access hypothesis).

This book introduces the reader to both neurolinguistics per se and the neuropsychological aspects of bilingualism. Neurolinguistics may roughly be defined as a subset of neuropsychology, namely the study of the representation and processing of language in the brain. To this effect, the first chapters of the book focus on the basic neuropsychology of language processing and acquisition. The second half of the book addresses the issues of cerebral representation and processing of language in bi-or multilingual subjects. All aspects are systematically dealt with, namely the definition of bilingualism; an analysis of all the issues related to bilingual aphasia, i.e. patterns of recovery of the patients' carious languages in diverse population; an investigation of the methodologies used in the study of the neuropsychological aspects of the various linguistic functions, such as comprehension, production and translation; and lastly, the issues of cerebral lateralization and neuroanatomical localization of the numerous cortical and subcortical structures subserving the various language system components in multilingual subjects. It is an excellent introduction to both the neuropsychology of language and the phenomena related to bilingualism. This book will be of particular interest to students of language therapy, aphasiology, applied psycholinguistics, neurolinguistics and, in general, to students of medicine who wish to become more knowledgeable about the specific needs of patients in a multilingual society.

This volume descibes, in up-to-date terminology and authoritative interpretation, the field of neurolinguistics, the science concerned with the neural mechanisms underlying the comprehension, production and abstract knowledge of spoken, signed or written language. An edited anthology of 165 articles from the award-winning Encyclopedia of Language and Linguistics 2nd edition, Encyclopedia of Neuroscience 4th Edition and Encyclopedia of the Neorological Sciences and Neurological Disorders, it provides the most comprehensive one-volume reference solution for scientists working with language and the brain ever published. Authoritative review of this dynamic field placed in an interdisciplinary context Approximately 165 articles by leaders in the field Compact and affordable single-volume format

Communication disorders are a problem for people around the world. However, language disorders are rarely studied within the context of bilingualism. This is despite the fact that the majority of individuals who are affected by acquired language disorders are multilingual. Studies of bilingual aphasic speakers reveal important insights about the cognitive and neurological factors involved in multilingualism and have an impact on the assessment and the rehabilitation of aphasic speakers. The aim of this Special Issue is to present papers by leading researchers in the field of aphasia and to examine the patterns of speech and language disorders among speakers who have varying proficiency in their native and non-native languages.

In the world today, bilingualism is more common than monolingualism. Thus, the default mental lexicon may in fact be the bilingual lexicon. More than ever, social and technological innovation have created a situation in which lexical knowledge may change dramatically throughout an individual’s lifetime. This book offers a new perspective for the understanding of these phenomena and their consequences for the representation of words in the mind and brain. Contributing authors are leaders in the field who provide a re-analysis of key assumptions and a re-focusing of research. They bring new insights and new findings that advance the understanding of both bilingualism and the mental lexicon. This volume serves to generate new directions and advances in bilingualism research.