Download or read book The Influence of Aging on the Neural Correlates of Judgments of Learning written by Hillary Erwin and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metamemory monitoring refers to the awareness of one0́9s own knowledge and memory abilities. A common way to measure monitoring is to have individuals predict their current learning state via metamemory judgments such as judgments of learning (JOLs). JOLs are subjective ratings regarding whether information will be remembered later. Prior research in young adults (YAs) suggests that the medial prefrontal cortex (mPFC) is involved in making JOLs. Although older adults (OAs) often show spared monitoring via JOLs, they might be able to maintain this ability by recruiting additional brain regions to compensate for alterations in the mPFC. Alternatively, OAs might have preserved monitoring because their neural correlates remain intact. YA and OA participants made JOLs on a 1-3 scale (Likely, Maybe, Unlikely) after viewing picture pairs during Functional Magnetic Resonance Imaging (fMRI) scanning. We tested the extent that brain activity differed in OAs compared to YAs in the mPFC using region of interest analyses in prefrontal brain regions, which are often invoked as key sites for neural compensation. Behaviorally, no age differences were found, consistent with the sparing of metamemory in older age. However, OAs showed increased brain activity when compared to YAs for the accurate > inaccurate and maybe > inaccurate contrasts in the middle frontal gyrus. This supports the notion that additional regions besides the mPFC are recruited by OAs when making encoding-based metamemory judgments, which could be indicative of compensatory mechanisms.
Download or read book The Effects of Aging and Prefrontal Cortical Damage on the Neural Correlates of Recollection and Familiarity written by Audrey Laquita Duarte and published by . This book was released on 2004 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cognitive Neuroscience of Aging written by Roberto Cabeza and published by Oxford University Press. This book was released on 2009-04-24 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until very recently, our knowledge about the neural basis of cognitive aging was based on two disciplines that had very little contact with each other. Whereas the neuroscience of aging investigated the effects of aging on the brain independently of age-related changes in cognition, the cognitive psychology of aging investigated the effects of aging on cognition independently of age-related changes in the brain. The lack of communication between these two disciplines is currently being addressed by an increasing number of studies that focus on the relationships between cognitive aging and cerebral aging. This rapidly growing body of research has come to constitute a new discipline, which may be called cognitive neuroscience of aging. The goal of Cognitive Neuroscience of Aging is to introduce the reader to this new discipline at a level that is useful to both professionals and students in the domains of cognitive neuroscience, cognitive psychology, neuroscience, neuropsychology, neurology, and other, related areas. This book is divided into four main sections. The first section describes noninvasive measures of cerebral aging, including structural (e.g., volumetric MRI), chemical (e.g., dopamine PET), electrophysiological (e.g., ERPs), and hemodynamic (e.g., fMRI), and discusses how they can be linked to behavioral measures of cognitive aging. The second section reviews evidence for the effects of aging on neural activity during different cognitive functions, including perception and attention, imagery, working memory, long-term memory, and prospective memory. The third section focuses on clinical and applied topics, such as the distinction between healthy aging and Alzheimers disease and the use of cognitive training to ameliorate age-related cognitive decline. The last section describes theories that relate cognitive and cerebral aging, including models accounting for functional neuroimaging evidence and models supported by computer simulations. Taken together, the chapters in this volume provide the first unified and comprehensive overview of the new discipline of cognitive neuroscience of aging.
Download or read book Effects of Age on Neural Correlates of Episodic Encoding and Brain Structure and Their Relation to Cognitive Performance written by Eleanor Liu and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Episodic memory – memory for unique personal events – is essential to our daily life. Relative to other forms of memory, episodic memory declines disproportionately with advancing age. One prominent account of such decline proposes a reduction in the efficacy of episodic encoding in older individuals. Numerous studies have employed functional magnetic resonance imaging to investigate the neural correlates of episodic encoding in young and older adults with the “subsequent memory procedure”. With this procedure, encoding related neural activity is contrasted based on subsequent memory performance for the study items. These studies have consistently reported that neural activity during encoding is predictive of later memory performance. Such subsequent memory effects (SMEs) take two forms: positive SMEs, where enhanced neural activity is associated with study items later remembered relative to study items that are less well remembered or forgotten; and negative SMEs, that take the opposite pattern. Studies have generally reported age-invariant positive SMEs whereas negative effects tend to be attenuated in older adults. Of importance, neural activity preceding the onset of a study item has also been shown to predict subsequent memory. Few studies have examined the effect of age on such pre-stimulus subsequent memory effects (pre-stimulus SMEs). Experiment 1 (Chapter 2) describes findings on pre-stimulus neural activity in healthy young and older adults. The results revealed age-invariant and age-dependent pre-stimulus SMEs in different brain regions, although age differences were mostly quantitative rather than qualitative. In contrast to prior reports of pre-stimulus SMEs, the effects in the present study were negative in direction. They could reflect allocation of neural resources in preparation of the upcoming study event. The study reported in Chapter 3 combined data from 2 independent experiments to examine age differences in poststimulus SMEs. The 2 regions of a priori interest were the hippocampus and left inferior frontal gyrus (IFG). Positive and negative SMEs were evident in both age groups. Of importance, the hippocampal SMEs were equivalent across age groups; and there was no evidence of age-related right-frontal over-recruitment. There was an age-invariant relationship between hippocampal SMEs and memory performance, suggesting intact hippocampal encoding activity in healthy older adults, and consistent with the notion that hippocampal activity reflects the amount of information encoded. A positive relationship between left IFG SME and memory performance was observed in older adults only. The study in Chapter 4 took an integrated approach to examine the relationship between structural and functional measures, and memory performance in young and older adults. Consistent with the literature, robust age-related decline was evident in hippocampal volume and cortical thickness. Results from an integrated statistical model revealed that hippocampal encoding activity, but not hippocampal volume, was predictive of memory performance in both age groups. On the other hand, cortical thickness negatively correlated with performance in young adults, but positively correlated with performance in older adults. Both cortical thickness and cortical SMEs explained unique variance in memory performance. Of importance, IFG thickness-memory relationships were no longer significant after controlling for global thickness. In conclusion, both pre-stimulus and encoding-related neural activity can be resistant to the effects of age, although the left IFG acts as a ‘bottleneck’ in older adults. Age differences in pre-stimulus SMEs require a nuanced interpretation, rather than appeal to a generic construct. Moreover, age differences appear to be more robust in structural rather than in functional measures. Lastly, the age-dependent cortical thickness-memory relationship was general rather than region-specific.
Download or read book The Cognitive Neuroscience of Metacognition written by Stephen M. Fleming and published by Springer Science & Business Media. This book was released on 2014-01-31 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metacognition is the capacity to reflect upon and evaluate cognition and behaviour. Long of interest to philosophers and psychologists, metacognition has recently become the target of research in the cognitive neurosciences. By combining brain imaging, computational modeling, neuropsychology and insights from psychiatry, the present book offers a picture of the metacognitive functions of the brain. Chapters cover the definition and measurement of metacognition in humans and non-human animals, the computational underpinnings of metacognitive judgments the cognitive neuroscience of self-monitoring ranging from confidence to error-monitoring and neuropsychiatric studies of disorders of metacognition. This book provides an invaluable overview of a rapidly emerging and important field within cognitive neuroscience.
Download or read book The Handbook of Aging and Cognition written by Fergus I. M. Craik and published by Psychology Press. This book was released on 2000 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition, broader in scope than the first, reviews new theories and findings over the past 10 years.
Download or read book The Wiley Handbook on The Cognitive Neuroscience of Memory written by Donna Rose Addis and published by John Wiley & Sons. This book was released on 2015-06-02 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wiley Handbook on the Cognitive Neuroscience of Memory presents a comprehensive overview of the latest, cutting-edge neuroscience research being done relating to the study of human memory and cognition. Features the analysis of original data using cutting edge methods in cognitive neuroscience research Presents a conceptually accessible discussion of human memory research Includes contributions from authors that represent a “who’s who” of human memory neuroscientists from the U.S. and abroad Supplemented with a variety of excellent and accessible diagrams to enhance comprehension
Download or read book An Investigation of the Influence of Cognitive Ageing on the Behavioural and Neural Correlates of Semantic Priming written by David O'Connor and published by . This book was released on 2010 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neural Correlates of Plasticity in Working Memory in Aging written by Stephan Heinzel and published by . This book was released on 2013 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cambridge Handbook of Cognitive Aging written by Ayanna K. Thomas and published by Cambridge University Press. This book was released on 2020-05-28 with total page 1019 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decades of research have demonstrated that normal aging is accompanied by cognitive change. Much of this change has been conceptualized as a decline in function. However, age-related changes are not universal, and decrements in older adult performance may be moderated by experience, genetics, and environmental factors. Cognitive aging research to date has also largely emphasized biological changes in the brain, with less evaluation of the range of external contributors to behavioral manifestations of age-related decrements in performance. This handbook provides a comprehensive overview of cutting-edge cognitive aging research through the lens of a life course perspective that takes into account both behavioral and neural changes. Focusing on the fundamental principles that characterize a life course approach - genetics, early life experiences, motivation, emotion, social contexts, and lifestyle interventions - this handbook is an essential resource for researchers in cognition, aging, and gerontology.
Download or read book Classification and Cognition written by William Kaye Estes and published by Oxford University Press on Demand. This book was released on 1994 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the Fitts Lectures, this volume presents a core set of concepts and principles that proposes a unified interpretation of a wide variety of phenomena of memory, categorization and decision-making. These theories are then applied to issues in category-learning and recognition.
Download or read book Cognitive Aging written by Institute of Medicine and published by National Academies Press. This book was released on 2015-07-21 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: For most Americans, staying "mentally sharp" as they age is a very high priority. Declines in memory and decision-making abilities may trigger fears of Alzheimer's disease or other neurodegenerative diseases. However, cognitive aging is a natural process that can have both positive and negative effects on cognitive function in older adults - effects that vary widely among individuals. At this point in time, when the older population is rapidly growing in the United States and across the globe, it is important to examine what is known about cognitive aging and to identify and promote actions that individuals, organizations, communities, and society can take to help older adults maintain and improve their cognitive health. Cognitive Aging assesses the public health dimensions of cognitive aging with an emphasis on definitions and terminology, epidemiology and surveillance, prevention and intervention, education of health professionals, and public awareness and education. This report makes specific recommendations for individuals to reduce the risks of cognitive decline with aging. Aging is inevitable, but there are actions that can be taken by individuals, families, communities, and society that may help to prevent or ameliorate the impact of aging on the brain, understand more about its impact, and help older adults live more fully and independent lives. Cognitive aging is not just an individual or a family or a health care system challenge. It is an issue that affects the fabric of society and requires actions by many and varied stakeholders. Cognitive Aging offers clear steps that individuals, families, communities, health care providers and systems, financial organizations, community groups, public health agencies, and others can take to promote cognitive health and to help older adults live fuller and more independent lives. Ultimately, this report calls for a societal commitment to cognitive aging as a public health issue that requires prompt action across many sectors.
Download or read book Neural Correlates of Successful Cognitive Aging written by and published by . This book was released on 2012 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Even in the absence of pathology such as Alzheimer's disease, aging is associated with cognitive decline. Nevertheless, some older individuals appear to maintain their cognitive abilities, raising the question of what neural factors might promote "successful" cognitive aging (SCA). From the current literature, it is unclear whether there are unique neural factors that give rise to individual differences in SCA, or whether the same neural factors relate to cognition across adulthood. Little is known about the relative importance of different aspects of neural integrity (i.e. brain structure, task-related functional response, and functional connectivity) to promoting SCA or how different neural factors interact in their contribution to SCA. We aimed to characterize the neural signature of SCA, defined by working memory performance. Sixty-four healthy adults, ages 23 to 78, underwent structural and functional magnetic resonance imaging during a working memory task. We focused on measuring the cortical thickness and surface area of the dorsolateral prefrontal cortex (DLPFC) and task-related activation within the DLPFC including laterality effects. We also focused on the "default-mode network" by measuring task-related deactivation in the medial prefrontal cortex (MPFC), functional connectivity between the MPFC and posterior cingulate (PC), and MPFC structure. We aimed to determine how these neural measures related to working memory and whether or not these brain-cognition relationships differed by age. We also explored the relative contribution of and inter-relationships between these neural measures in predicting SCA. Larger DLPFC surface area, greater left and right DLPFC activation, more bilateral DLPFC activation, and greater MPFC deactivation were each associated with better working memory performance. These brain-cognition relationships did not differ with age, thus SCA did not result from a unique neural signature but occurred when older adults maintained the same brain-cognition relationships present throughout adulthood. Results of multivariate analyses showed how different aspects of the neural system (i.e., brain structure and function) work together to achieve good cognitive function in aging. Right DLPFC activation and MPFC deactivation were the strongest contributors to SCA, suggesting that brain-based interventions should focus on preventing or reversing age-related alterations in those aspects of the neural system.
Download or read book The Self in Social Judgment written by Mark D. Alicke and published by Psychology Press. This book was released on 2013-05-13 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume begins with a historical overview of the self in social judgment and outlines the major issues. Subsequent chapters, all written by leading experts in their respective areas, identify and elaborate four major themes regarding the self in social judgment: · the role of the self as an information source for evaluating others, or what has been called 'social projection' · the assumption of personal superiority as reflected in the pervasive tendency for people to view their characteristics more favorably than those of others · the role of the self as a comparison standard from or toward which other people's behaviors and attributes are assimilated or contrasted · the relative weight people place on the individual and collective selves in defining their attributes and comparing them to those of other people
Download or read book Multiple Pathways of Cognitive Aging written by Grzegorz Sedek and published by Oxford University Press. This book was released on 2021-09-24 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The empirical study of aging and cognition has progressed tremendously over the past 50-plus years. Much of the original research had its roots in the medical realm as investigators sought to characterize cognitive deficits associated with aging. For the most part, this research adhered to a biomedical model, in which aging was considered akin to a disease, and the focus was on understanding patterns of decline that were assumed to be an inevitable part of getting older (Hess & Blanchard-Fields, 1996). Indeed, aging was often studied by comparing patterns of decline to those associated with atypical populations with specific diseases or cortical lesions/insults (e.g., West, 1996). The study of aging and cognitive change made its way into mainstream experimental psychology in the 1960s and 1970s as researchers focused more on understanding normal aging through the lens of verbal learning and cognitive psychology (for reviews, see Kausler, 1982, 1991). One of the great advantages of these perspectives was the availability of sophisticated models to characterize memory and cognitive functions, and associated methods for assessing specific processes within these models. In these traditions, aging was usually studied by introducing a two-level age variable into traditional experimental designs that consisted of groups of young and older adults. The former groups typically comprised university undergraduates, whereas the latter groups usually encompassed a much wider age range of community-dwelling volunteers"--
Download or read book Cognitive Changes and the Aging Brain written by Kenneth M. Heilman and published by Cambridge University Press. This book was released on 2019-12-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the changes in the brain and in cognitive functions that occur with aging in the absence of a neurological, psychiatric, or medical disease. It discusses aging-related changes in many brain functions, including memory, language, sensory perception, motor function, creativity, attention, executive functions, emotions and mood. The neural mechanisms that may account for specific aging-related changes in cognition, perception and behavior are explored, as well as the means by which aging-related cognitive decrements can be managed and possibly ameliorated. Consequently, this book will be of value to clinicians, including neurologists, psychiatrists, geriatricians, primary care physicians, psychologists and speech-language pathologists. In addition, researchers and graduate students who want to learn about the aging brain will find this an indispensable guide.
Download or read book The Aging Consumer written by Aimee Drolet and published by Routledge. This book was released on 2020-10-01 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Aging Consumer: Perspectives from Psychology and Marketing, 2nd edition takes stock of what is known around age and consumer behavior, identifies gaps and open questions within the research, and outlines an agenda for future research. There has been little systematic research done with respect to the most basic questions related to age and consumer behavior, such as whether older adults versus young and middle-age adults respond to marketing activities including pricing, promotions, product design, and distribution. Written by experts, The Aging Consumer compiles research on a broad range of topics on consumer marketing, from an individual to a societal level of analysis. This second edition provides new versions of chapters contained in the 2010 volume that have been updated to reflect the latest psychological and marketing research and thinking. Included also are ten new chapters which cover exciting new ground, such as changes in metacognition in older adults, motivated cognition of the aging consumer, and a global perspective on aging and the economy across cultures. This updated volume is beneficial for researchers and practitioners in marketing, consumer behavior, and advertising. Additionally, The Aging Consumer, 2nd edition will appeal to professionals in other fields such as psychology, decision sciences, gerontology and gerontological social work, and those who are concerned with normal human aging and its implications for the everyday behavior of older individuals. It will also be of interest to those in fields concerned with the societal implications of an aging population, such as economics, policy, and law.
