[PDF] The Contribution Of The Hippocampus To Language Processing eBook

Author : Saleh Alamri
Publisher :
Page : 218 pages
File Size : 27,58 MB
Release : 2017
Category :
ISBN :

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Humans display distinct unlimited capacity to produce expressions in language and use them flexibly in language processing. This characteristic of human language allows speakers to use novel, flexible, and complex structures during communication. Neurobiologically, however, it is not fully understood how the rapid process of language production and language comprehension occurs, including word generation, interpretations and common representations that facilitate the process of real-time language processing. The classical theories and approaches have limited the language network to perisylvian cortical regions, namely the Broca's and Wernicke's areas. This thesis proposes that the language network goes beyond the cortical regions indicated by traditional views. In doing so, this thesis puts forward a hypothesis that subcortical structures are not only fundamental to memory but also to language, in which online language processing receives a major contribution from the hippocampal declarative memory, which allows speakers and listeners to use language flexibly. The mechanism of such a contribution by the hippocampal declarative memory system during online language processing is via relational binding in which hippocampal declarative memory rapidly retrieves a network of relative, stored information to serve in the particular context. To support the hypothesis of hippocampal implications in language processing, several pathologies that affect the hippocampus have been reviewed, including Alzheimer's disease, Down syndrome, Williams' syndrome, schizophrenia, depression and bipolar disorder. The review evaluated hippocampal neurobiological alterations in each pathology, and determined cognitive and language profiles. Findings from previous pathologies indicate that the hippocampus affects language at two levels. First, in the general delay in language acquisition and other cognitive aspects, and second, in the disturbed use of language during online communication; short lag interaction is seen to occur when the hippocampal formation is lesioned. It appears that hippocampal lesions suppress the flexible use of stored information within certain contexts in communication, as it does in flexible navigation in animal models. This thesis concludes that the hippocampus is a multi-cognitive operator that is implicated in several cognitive areas including the flexible use of language during real-time processing, and therefore it should be taken into account in the language network in the human brain.

Author : Jake Christopher Kurczek
Publisher :
Page : 156 pages
File Size : 43,79 MB
Release : 2014
Category : Amnesia
ISBN :

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The final goal of this study was to understand the effects of unilateral hippocampal damage on language processing. Individuals with unilateral hippocampal damage participated in all of the previous experiments. It was predicted that individuals with left hippocampal damage would perform worse than individuals with right hippocampal damage, and their performance was significantly impaired across measures. This suggests that the left hippocampus may be particularly important for processing linguistic material outside of even verbal memory.

Author : Deborah E. Hannula
Publisher : Springer
Page : 587 pages
File Size : 50,12 MB
Release : 2017-03-01
Category : Medical
ISBN : 3319504061

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The hippocampus has long been considered a critical substrate in the neurobiology, neuropsychology, and cognitive neuroscience of memory. Over the past few decades, a number of ground-breaking theoretical and methodological advances have radically enhanced our understanding of the structure and function of the hippocampus and revolutionized the neuroscientific study of memory. Cutting across disciplines and approaches, these advances offer novel insights into the molecular and cellular structure and physiology of the hippocampus, the role of hippocampus in the formation, (re)consolidation, enhancement, and retrieval of memory across time and development, and permit investigators to address questions about how the hippocampus interacts, functionally and anatomically, with other neural systems in service of memory. In addition, recent investigations also suggest that the mechanistic properties and functional processing features of the hippocampus permit broader contributions to cognition, beyond memory, to the domains of attention, decision-making, language, social cognition, and a variety of other capacities that are critical for flexible cognition and behavior. These advances have profound implications for the neurobiology and cognitive neuroscience of hippocampus dependent cognition and for the numerous psychiatric and neurological diseases and disorders for which hippocampal pathology is a hallmark such as Alzheimer’s disease and schizophrenia. The goal of this book is to bring together in a single source an integrated review of these advances providing state of the art treatment on the structure and function of the hippocampus. Contributors will examine the hippocampus from a variety of levels (from cells to systems) using a wide range of methods (from neurobiological approaches in non-human animals to neuroimaging and neuropsychological work in humans).

Author : Franz Schmalhofer
Publisher : Psychology Press
Page : 408 pages
File Size : 34,88 MB
Release : 2007-03-05
Category : Psychology
ISBN : 1135605653

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Higher Level Language Processes in the Brain is a groundbreaking book that explains how behavior research, computational models, and brain imaging results can be unified in the study of human comprehension. The volume illustrates the most comprehensive and newest findings on the topic. Each section of the book nurtures the theoretical and practical

Author : Stefan Geyer
Publisher : Springer Science & Business Media
Page : 153 pages
File Size : 20,24 MB
Release : 2012-12-06
Category : Medical
ISBN : 3642189105

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Over the last years, numerous studies have provided new insights into the structural and functional organization of the human cortical motor system. The data reviewed in this book indicate that striking similarities have been found between humans and non-human primates.

Author : National Academy of Sciences
Publisher : National Academies Press
Page : 195 pages
File Size : 15,6 MB
Release : 1992-01-01
Category : Medical
ISBN : 0309045290

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The brain ... There is no other part of the human anatomy that is so intriguing. How does it develop and function and why does it sometimes, tragically, degenerate? The answers are complex. In Discovering the Brain, science writer Sandra Ackerman cuts through the complexity to bring this vital topic to the public. The 1990s were declared the "Decade of the Brain" by former President Bush, and the neuroscience community responded with a host of new investigations and conferences. Discovering the Brain is based on the Institute of Medicine conference, Decade of the Brain: Frontiers in Neuroscience and Brain Research. Discovering the Brain is a "field guide" to the brainâ€"an easy-to-read discussion of the brain's physical structure and where functions such as language and music appreciation lie. Ackerman examines: How electrical and chemical signals are conveyed in the brain. The mechanisms by which we see, hear, think, and pay attentionâ€"and how a "gut feeling" actually originates in the brain. Learning and memory retention, including parallels to computer memory and what they might tell us about our own mental capacity. Development of the brain throughout the life span, with a look at the aging brain. Ackerman provides an enlightening chapter on the connection between the brain's physical condition and various mental disorders and notes what progress can realistically be made toward the prevention and treatment of stroke and other ailments. Finally, she explores the potential for major advances during the "Decade of the Brain," with a look at medical imaging techniquesâ€"what various technologies can and cannot tell usâ€"and how the public and private sectors can contribute to continued advances in neuroscience. This highly readable volume will provide the public and policymakersâ€"and many scientists as wellâ€"with a helpful guide to understanding the many discoveries that are sure to be announced throughout the "Decade of the Brain."

Author : Mark Jung Beeman
Publisher : Psychology Press
Page : 408 pages
File Size : 28,38 MB
Release : 2013-02-01
Category : Psychology
ISBN : 1134794290

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The statement, "The Right Hemisphere (RH) processes language"--while not exactly revolutionary--still provokes vigorous debate. It often elicits the argument that anything the RH does with language is not linguistic but "paralinguistic." The resistance to the notion of RH language processing persists despite the fact that even the earliest observers of Left Hemisphere (LH) language specialization posited some role for the RH in language processing, and evidence attesting to various RH language processes has steadily accrued for more than 30 years. In this volume, chapters pertain to a wide, but by no means, exhaustive set of language comprehension processes for which RH contributions have been demonstrated. The sections are organized around these processes, beginning with initial decoding of written or spoken input, proceeding through semantic processing of single words and sentences, up to comprehension of more complex discourse, as well as problem solving. The chapters assembled here should begin to melt this resistance to evidence of RH language processing. This volume's main goal is to compile evidence about RH language function from a scattered literature. The editorial commentaries concluding each section highlight the relevance of these phenomena for psycholinguistic and neuropsychological theory, and discuss similarities and apparent discrepancies in the findings reported in individual chapters. In the final chapter, common themes that emerge from the enterprise of studying RH language and future challenge for the field are reviewed. Although all chapters focus only on "typical" laterality of right handed people, this work provides a representative sample of the current state of the art in RH language research. Important features include: * a wide range of coverage from speech perception and reading through complex discourse comprehension and problem-solving; * research presented from both empirical and theoretical perspectives; and * commentaries and conclusions integrating findings and theories across sub-domains, and speculating on future directions of the field.

Author : Howard Eichenbaum
Publisher : Oxford University Press
Page : 594 pages
File Size : 34,16 MB
Release : 2004-11-18
Category : Psychology
ISBN : 0198024703

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This cutting-edge book offers a theoretical account of the evolution of multiple memory systems of the brain. The authors conceptualize these memory systems from both behavioral and neurobiological perspectives, guided by three related principles. First, that our understanding of a wide range of memory phenomena can be advanced by breaking down memory into multiple forms with different operating characteristics. Second, that different forms of memory representation are supported by distinct brain pathways with circuitry and neural coding properties. Third, that the contributions of different brain systems can be compared and contrasted by distinguishing between dedicated (or specific) and elaborate (or general) memory systems. A primary goal of this work is to relate the neurobiological properties of dedicated and elaborate systems to their neuropsychological counterparts, and in so doing, account for the phenomenology of memory, from conditioning to conscious recollection.

Author : Patti Adank
Publisher : Frontiers Media SA
Page : 148 pages
File Size : 30,71 MB
Release : 2016-03-18
Category : Neurosciences
ISBN : 2889197751

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Speech production and perception are two of the most complex actions humans perform. The processing of speech is studied across various fields and using a wide variety of research approaches. These fields include, but are not limited to, (socio)linguistics, phonetics, cognitive psychology, neurophysiology, and cognitive neuroscience. Research approaches range from behavioural studies to neuroimaging techniques such as Magnetoencephalography, electroencephalography (MEG/EEG) and functional Magnetic Resonance Imaging (fMRI), as well as neurophysiological approaches, such as the recording of Motor Evoked Potentials (MEPs), and Transcranial Magnetic Stimulation (TMS). Each of these approaches provides valuable information about specific aspects of speech processing. Behavioural testing can inform about the nature of the cognitive processes involved in speech processing, neuroimaging methods show where (fMRI and MEG) in the brain these processes take place and/or elucidate on the time-course of activation of these brain areas (EEG and MEG), while neurophysiological methods (MEPs and TMS) can assess critical involvement of brain regions in the cognitive process. Yet, what is currently unclear is how speech researchers can combine methods such that a convergent approach adds to theory/model formulation, above and beyond the contribution of individual component methods? We expect that such combinations of approaches will significantly forward theoretical development in the field. The present research topic comprise a collection of manuscripts discussing the cognitive and neural organisation of speech processing, including speech production and perception at the level of individual speech sounds, syllables, words, and sentences. Our goal was to use findings from a variety of disciplines, perspectives, and approaches to gain a more complete picture of the organisation of speech processing. The contributions are grouped around the following five main themes: 1) Spoken language comprehension under difficult listening conditions; 2) Sub-lexical processing; 3) Sensorimotor processing of speech; 4) Speech production. The contributions used a variety of research approaches, including behavioural experiments, fMRI, EEG, MEG, and TMS. Twelve of the 14 contributions were on speech perception processing, and the remaining two examined speech production. This Research Topic thus displays a wide variety of topics and research methods and this comprehensive approach allows an integrative understanding of currently available evidence as well as the identification of concrete venues for future research.

Author : Douglas D. Burman
Publisher :
Page : 0 pages
File Size : 17,15 MB
Release : 2022
Category : Medical
ISBN :

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Beyond its established role in declarative memory function, the hippocampus has been implicated in varied roles in sensory processing and cognition, particularly those requiring temporal or spatial context. Disentangling its known role in memory from other cognitive functions can be challenging, as memory is directly or indirectly involved in most conscious activities, including tasks that underlie most experimental investigations. Recent work from this lab has examined the directional influence from the hippocampus on cortical areas involved in task performance, including tasks requiring movements, sensory processing, or language judgments. The hippocampus shows preferential connectivity with relevant cortical areas, typically the region critically involved in task performance, raising the possibility that the hippocampus plays a role in cognitive control. Minimal criteria for a role in cognitive control are proposed, and hippocampal connectivity with sensorimotor cortex during a non-mnemonic motor task is shown to meet this standard. Future directions for exploration are discussed.