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Author: Harriet A. Allen
Publisher: Frontiers Media SA
ISBN: 2889199371
Category : Neurosciences. Biological psychiatry. Neuropsychiatry
Languages : en
Pages : 206
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Book Description
Healthy ageing can lead to declines in both perceptual and cognitive functions. Impaired perception, such as that resulting from hearing loss or reduced visual or tactile resolution, increases demands on ‘higher-level’ cognitive functions to cope or compensate. It is possible, for example, to use focused attention to overcome perceptual limitations. Unfortunately, cognitive functions also decline in old age. This can mean that perceptual impairments are exacerbated by cognitive decline, and vice versa, but also means that interventions aimed at one type of decline can lead to improvements in the other. Just as improved cognition can ameliorate perceptual deficits, improving the stimulus can help offset cognitive deficits. For example, making directions and routes easy to follow can help compensate for declines in navigation abilities. In this Topic, we bring together papers from both auditory and visual researchers that address the interaction between perception and cognition in the ageing brain. Many of the studies demonstrate that a broadening of representations or increased reliance on gist underlie perceptual and cognitive age-related declines. There is also clear evidence that impaired perception is associated with poor cognition although, encouragingly, it can also be seen that good perception is associated with better cognition. Compensatory cognitive strategies were less successful in improving perception than might be expected. We also present papers which highlight important methodological considerations that are required when studying the older brain.
Author: Harriet A. Allen
Publisher: Frontiers Media SA
ISBN: 2889199371
Category : Neurosciences. Biological psychiatry. Neuropsychiatry
Languages : en
Pages : 206
Get Book Here
Book Description
Healthy ageing can lead to declines in both perceptual and cognitive functions. Impaired perception, such as that resulting from hearing loss or reduced visual or tactile resolution, increases demands on ‘higher-level’ cognitive functions to cope or compensate. It is possible, for example, to use focused attention to overcome perceptual limitations. Unfortunately, cognitive functions also decline in old age. This can mean that perceptual impairments are exacerbated by cognitive decline, and vice versa, but also means that interventions aimed at one type of decline can lead to improvements in the other. Just as improved cognition can ameliorate perceptual deficits, improving the stimulus can help offset cognitive deficits. For example, making directions and routes easy to follow can help compensate for declines in navigation abilities. In this Topic, we bring together papers from both auditory and visual researchers that address the interaction between perception and cognition in the ageing brain. Many of the studies demonstrate that a broadening of representations or increased reliance on gist underlie perceptual and cognitive age-related declines. There is also clear evidence that impaired perception is associated with poor cognition although, encouragingly, it can also be seen that good perception is associated with better cognition. Compensatory cognitive strategies were less successful in improving perception than might be expected. We also present papers which highlight important methodological considerations that are required when studying the older brain.
Author: Anthony Michael Monacelli
Publisher:
ISBN:
Category : Alzheimer's disease
Languages : en
Pages : 302
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Book Description
"Cognitive aging and Alzheimer's disease (AD) are associated with increasingly debilitating visuospatial disorientation and navigational impairments. These impairments lead older adults and AD patients to become lost during the independent exploration of familiar environments. Visuospatial deficits in aging and AD have been linked to impairments of visual motion processing, and changes in visual evoked potentials. In this dissertation, I review the literature on mechanisms of spatial orientation in aging and AD, and then discuss what is known about attentional influences on related sensory processing changes in aging and AD. I include research on visual motion evoked potentials in the study of visuospatial orientation, the utility of this neurophysiological approach in gaining insight into brain aging, and its potential utility for the objective assessment of AD. The main body of this work is devoted to the presentation of three original studies that employ visual motion evoked potentials (VMEPs) to better understand cognitive and perceptual influences on navigation and orientation in normal aging and AD. In Study One, neurophysiological and behavioral responses were measured to sequential visual stimuli simulating paths of self-movement through the environment. In this way the temporal dynamics of the cortical processing of naturalistically changing scenes were assessed in young controls (YN), older normal controls (ON), and AD patients. In Study Two, the effects of exogenously cued spatial attention on neurophysiological responses to the behaviorally relevant center of motion in optic flow were examined in YN, ON and AD subjects by interleaving valid and invalid spatial cues before the presentation of optic flow target stimuli. In Study Three, the effect of sustained, endogenous attention on neurophysiological responses was examined by superimposing optic flow and 3-letter words in a block-wise paradigm evoking electrophysiological responses that allows me to compare optic flow responses in attended versus non-attended conditions. Consistent with prior research on optic flow VMEPs in aging and AD, results showed that ON and AD subjects can be distinguished by differing characteristics of N200 perceptual response. Compared to YN subjects, both of the older groups show delayed responses. AD consistently showed diminished amplitude as well. Results from the current project support previous findings, and add a new focus on top-down, cognitive influences on perceptual processing. Most notably, these studies show group differences in the N2b component, suggestive of cognitive processing differences attributable to attention. Together these studies contribute to our understanding of both bottom-up visual and top-down behavioral effects on visuospatial orientation and navigation and further elucidate perceptual and cognitive factors in the functional decline of normal and pathological aging"--Leaves vi-vii.
Author: Roberto Cabeza
Publisher: Oxford University Press
ISBN: 0199372934
Category : Medical
Languages : en
Pages : 633
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Book Description
A rapidly growing body of research has consituted a new discipline that may be called cognitive neuroscience of aging. This book offers an introduction to the topic, useful to both professionals & students in cognitive neuroscience, cognitive psychology, neuroscience, neuropsychology & neurology.
Author: Roger A. Dixon
Publisher: Oxford : Oxford University Press
ISBN: 9780198525691
Category : Medical
Languages : en
Pages : 390
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Book Description
With an ever increasing population of aging people in the western world, it is more crucial than ever that we try to understand how and why cognitive competence breaks down with advancing age; why do some people follow normal patterns of cognitive change, while others follow a path of progressive decline, with neurodegenerative diseases such as Alzheimer's. What can be done to prevent cognitive decline - or to avoid neurodegenerative diseases? The answers, if they come, will not emerge from research within one discipline, but from work being done across a range of scientific and medical specialities. This volume brings together leading experts from a range of fields studying cognitive aging, including neuroscience, pharmacology, health, genetics, sensory biology, and epidemiology. Unlike other books in this area, this book is more about 'new frontiers' than past research and accomplishments. Recently cognitive aging research has taken several new directions, linking with, and benefiting from, rapid technological and theoretical advances in these neighbouring disciplines. This book provides unique interdisciplinary coverage of the topic. With each chapter including commentaries from specialists in related fields, the book provides an integrative study of the topic. For those within the fields of psychology, cognitive neuroscience, and geriatrics, this volume will make an important contribution in furthering our understanding of a problem that affects us all.
Author: Matthew Rizzo
Publisher: John Wiley & Sons
ISBN: 1118772083
Category : Psychology
Languages : en
Pages : 1302
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Book Description
A thought-provoking treatise on understanding and treating the aging mind and brain This handbook recognizes the critical issues surrounding mind and brain health by tackling overarching and pragmatic needs so as to better understand these multifaceted issues. This includes summarizing and synthesizing critical evidence, approaches, and strategies from multidisciplinary research—all of which have advanced our understanding of the neural substrates of attention, perception, memory, language, decision-making, motor behavior, social cognition, emotion, and other mental functions. Written by a plethora of health experts from around the world, The Wiley Handbook on the Aging Mind and Brain offers in-depth contributions in 7 sections: Introduction; Methods of Assessment; Brain Functions and Behavior across the Lifespan; Cognition, Behavior and Disease; Optimizing Brain Function in Health and Disease; Forensics, Competence, Legal, Ethics and Policy Issues; and Conclusion and New Directions. Geared toward improving the recognition, diagnosis, and treatment of many brain-based disorders that occur in older adults and that cause disability and death Seeks to advance the care of patients who have perceptual, cognitive, language, memory, emotional, and many other behavioral symptoms associated with these disorders Addresses principles and practice relevant to challenges posed by the US National Academy of Sciences and National Institute of Aging (NIA) Presents materials at a scientific level that is appropriate for a wide variety of providers The Wiley Handbook on the Aging Mind and Brain is an important text for neurologists, psychiatrists, psychologists, physiatrists, geriatricians, nurses, pharmacists, social workers, and other primary caregivers who care for patients in routine and specialty practices as well as students, interns, residents, and fellows.
Author: Fergus Craik
Publisher: Springer Science & Business Media
ISBN: 1468441787
Category : Psychology
Languages : en
Pages : 404
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Book Description
For a variety of reasons, there has been an explosion of interest in research on aging over the past few years. The reasons include an awareness that a large and growing proportion of our popUlation is over 65 and that research findings can contribute to their health, satisfaction, and efficiency as members of society; the fact that funding agencies have endorsed the need for more research effort in the area by setting up special programs; and also the fact that researchers themselves are turning more to practical problems as many theoretical issues (in experimen tal psychology at least) seem to remain as intractable as ever. Thus, at present there is widespread interest in aging, but there is also a lack of knowledge as to what has already been accomplished in the area, what the theoretical issues are, and what factors contribute to the methodological and practical difficulties. The time is propitious for meetings of experts in various aspects of the aging process, both to discuss among themselves latest advances in the field and also to inte grate known information for researchers and practitioners. In the summer of 1980 we organized such a meeting as the 10th annual psychology symposium to be held at the Erindale Campus of the University of Toronto. The topic chosen was Aging and Cognitive Processes, and the edited contributions to the symposium form the chapters of the present book.
Author: Fergus I. M. Craik
Publisher: Taylor & Francis US
ISBN:
Category : Psychology
Languages : en
Pages : 684
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Book Description
Cognitive aging is a flourishing area of research. This third edition reviews the findings and theories since the previous edition and evaluates the field's points of growth.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069408
Category : Social Science
Languages : en
Pages : 286
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Book Description
Possible new breakthroughs in understanding the aging mind that can be used to benefit older people are now emerging from research. This volume identifies the key scientific advances and the opportunities they bring. For example, science has learned that among older adults who do not suffer from Alzheimer's disease or other dementias, cognitive decline may depend less on loss of brain cells than on changes in the health of neurons and neural networks. Research on the processes that maintain neural health shows promise of revealing new ways to promote cognitive functioning in older people. Research is also showing how cognitive functioning depends on the conjunction of biology and culture. The ways older people adapt to changes in their nervous systems, and perhaps the changes themselves, are shaped by past life experiences, present living situations, changing motives, cultural expectations, and emerging technology, as well as by their physical health status and sensory-motor capabilities. Improved understanding of how physical and contextual factors interact can help explain why some cognitive functions are impaired in aging while others are spared and why cognitive capability is impaired in some older adults and spared in others. On the basis of these exciting findings, the report makes specific recommends that the U.S. government support three major new initiatives as the next steps for research.
Author: Fergus I.M. Craik
Publisher: Psychology Press
ISBN: 1136872140
Category : Psychology
Languages : en
Pages : 663
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Book Description
Cognitive aging is a flourishing area of research. A significant amount of new data, a number of new theoretical notions, and many new research issues have been generated in the past ten years. This new edition reviews new findings and theories, enables the reader to assess where the field is today, and evaluates its points of growth. The chapters are organized to run from reviews of current work on neuroimaging, neuropsychology, genetics and the concept of brain reserve, through the 'mainstream' topics of attention, memory, knowledge and language, to a consideration of individual differences and of cognitive aging in a lifespan context. This edition continues to feature the broad range of its predecessors, while also providing critical assessments of current theories and findings.
Author: Lola Cuddy
Publisher: Academic Press
ISBN: 0128174234
Category : Psychology
Languages : en
Pages : 476
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Book Description
Music and the Aging Brain describes brain functioning in aging and addresses the power of music to protect the brain from loss of function and how to cope with the ravages of brain diseases that accompany aging. By studying the power of music in aging through the lens of neuroscience, behavioral, and clinical science, the book explains brain organization and function. Written for those researching the brain and aging, the book provides solid examples of research fundamentals, including rigorous standards for sample selection, control groups, description of intervention activities, measures of health outcomes, statistical methods, and logically stated conclusions. Summarizes brain structures supporting music perception and cognition Examines and explains music as neuroprotective in normal aging Addresses the association of hearing loss to dementia Promotes a neurological approach for research in music as therapy Proposes questions for future research in music and aging
