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Author: Nathaniel Bloem Klooster
Publisher:
ISBN:
Category : Hippocampus (Brain)
Languages : en
Pages : 149
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Book Description
Semantic memory includes vocabulary and word meanings, conceptual information, and general facts about the world (Tulving, 1972). According to the standard view of semantic memory in cognitive neuroscience, the hippocampus is necessary to first acquire new semantic information (Gabrieli, Cohen, & Corkin, 1988), but these representations are then consolidated in the neocortex and become independent of the hippocampus with time (McClelland, McNaughton, & O'Reilly, 1995). Remote semantic memory is considered independent of the hippocampus, and the hippocampus is not thought to play a critical role in the processing and use of such representations. The current work challenges the notion that previously acquired semantic knowledge, and its use during communication, is independent of the hippocampus. A group of patients with bilateral hippocampal damage and severe impairments in declarative memory were tested. Intact naming and word-definition matching performance in amnesia, has led to the notion that remote semantic memory is intact in patients with hippocampal amnesia. Motivated by perspectives of word learning as a protracted process where additional features and senses of a word are added over time, and by recent discoveries about the time course of hippocampal contributions to on-line relational processing, reconsolidation, and the flexible integration of information, we revisit the notion that remote semantic memory is intact in amnesia. Using measures of semantic richness and vocabulary depth from psycholinguistics and first and second language-learning studies, we examined how much information is associated with previously acquired, highly familiar words in hippocampal amnesic patients.
Author: Nathaniel Bloem Klooster
Publisher:
ISBN:
Category : Hippocampus (Brain)
Languages : en
Pages : 149
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Book Description
Semantic memory includes vocabulary and word meanings, conceptual information, and general facts about the world (Tulving, 1972). According to the standard view of semantic memory in cognitive neuroscience, the hippocampus is necessary to first acquire new semantic information (Gabrieli, Cohen, & Corkin, 1988), but these representations are then consolidated in the neocortex and become independent of the hippocampus with time (McClelland, McNaughton, & O'Reilly, 1995). Remote semantic memory is considered independent of the hippocampus, and the hippocampus is not thought to play a critical role in the processing and use of such representations. The current work challenges the notion that previously acquired semantic knowledge, and its use during communication, is independent of the hippocampus. A group of patients with bilateral hippocampal damage and severe impairments in declarative memory were tested. Intact naming and word-definition matching performance in amnesia, has led to the notion that remote semantic memory is intact in patients with hippocampal amnesia. Motivated by perspectives of word learning as a protracted process where additional features and senses of a word are added over time, and by recent discoveries about the time course of hippocampal contributions to on-line relational processing, reconsolidation, and the flexible integration of information, we revisit the notion that remote semantic memory is intact in amnesia. Using measures of semantic richness and vocabulary depth from psycholinguistics and first and second language-learning studies, we examined how much information is associated with previously acquired, highly familiar words in hippocampal amnesic patients.
Author: A. David Redish
Publisher: MIT Press
ISBN: 9780262181945
Category : Animal navigation
Languages : en
Pages : 452
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Book Description
There are currently two major theories about the role of the hippocampus, a distinctive structure in the back of the temporal lobe. One says that it stores a cognitive map, the other that it is a key locus for the temporary storage of episodic memories. A. David Redish takes the approach that understanding the role of the hippocampus in space will make it possible to address its role in less easily quantifiable areas such as memory. Basing his investigation on the study of rodent navigation--one of the primary domains for understanding information processing in the brain--he places the hippocampus in its anatomical context as part of a greater functional system. Redish draws on the extensive experimental and theoretical work of the last 100 years to paint a coherent picture of rodent navigation. His presentation encompasses multiple levels of analysis, from single-unit recording results to behavioral tasks to computational modeling. From this foundation, he proposes a novel understanding of the role of the hippocampus in rodents that can shed light on the role of the hippocampus in primates, explaining data from primate studies and human neurology. The book will be of interest not only to neuroscientists and psychologists, but also to researchers in computer science, robotics, artificial intelligence, and artificial life.
Author: Deborah E. Hannula
Publisher: Springer
ISBN: 3319504061
Category : Medical
Languages : en
Pages : 587
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Book Description
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: John Hart
Publisher: Cambridge University Press
ISBN: 1139462040
Category : Medical
Languages : en
Pages : 349
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Book Description
The advent of modern investigative techniques to explore brain function has led to major advances in understanding the neural organization and mechanisms associated with semantic memory. This book presents current theories by leading experts in the field on how the human nervous system stores and recalls memory of objects, actions, words and events. Chapters range from models of a specific domain or memory system (e.g., lexical-semantic, sensorimotor, emotion) to multiple modality accounts; from encompassing memory representations, to processing modules, to network structures, focusing on studies of both normal individuals and those with brain disease. Recent advances in neuro-exploratory techniques allow for investigation of semantic memory mechanisms noninvasively in both normal healthy individuals and patients with diffuse or focal brain damage. This has resulted in a significant increase in findings relevant to the localization and mechanistic function of brain regions engaged in semantic memory, leading to the neural models included here.
Author: John Hart
Publisher:
ISBN: 9780511277351
Category : Language disorders
Languages : en
Pages : 381
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Book Description
Author: Walter Glannon
Publisher: Cambridge University Press
ISBN: 1107131979
Category : Law
Languages : en
Pages : 245
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Book Description
Provides a thematically integrated analysis and discussion of neuroethical questions about memory capacity, content, and interventions.
Author: Michael D. Kopelman
Publisher:
ISBN: 9780749129033
Category :
Languages : en
Pages :
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Book Description
Author: George Ellis
Publisher: Cambridge University Press
ISBN: 1107053684
Category : Psychology
Languages : en
Pages : 231
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Book Description
This book presents a compelling unifying theory of which aspects of the brain are innate and which are not.
Author: Larry R. Squire
Publisher: Oxford University Press, USA
ISBN: 0195069218
Category : Memory
Languages : en
Pages : 438
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Book Description
This book brings together an internationally respected group of researchers for the purpose of examining neuroplasticity, a topic of immense current interest in psychology, neuroscience, neuropsychology, and clinical neurology. The chapters represent state-of-the-art work on neuroplasticity at all levels: behavioral, neural, and molecular. They describe recent work on memory ranging from cellular morphological studies in invertebrates to research on the human brain made possible by new advances in neuroimaging technology. The book begins with an introductory chapter that considers the psychology of memory at the global, structural level. The remainder of the volume is divided into three related parts. The first focuses on recent approaches, which are based in part on new technology, that aim to measure and describe activity in relatively large populations of neurons. The second focuses on memory at the level of brain systems. One major theme to emerge from work at this level is that memory is composed of multiple, separable components that can be identified with specific anatomical structures and connections. The third part of the book focuses on molecular and cellular studies that show how individual neurons and their synapses behave in a history-dependent manner. This research concerns both brief changes in synaptic plasticity as well as more lasting changes in connectivity, which depend on altered gene expression and morphological growth and change. Altogether, the chapters provide a rich summary of the breadth and excitement of contemporary research on the biology of memory.
Author: Joseph Robert Manns
Publisher:
ISBN:
Category : Hippocampus (Brain)
Languages : en
Pages : 338
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Book Description
