Download or read book Do the Electrophysiological Correlates of Recognition Memory Change with Time written by Jenna Roberts and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Change in Electrophysiological Correlates of Recognition Memory Processes Following Mild Traumatic Brain Injury written by Jason Stuart Little and published by . This book was released on 2010 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Electrophysiological and Neuropsychological Organization of Long Term Memory written by Richard James Addante and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrophysiological correlates of recognition memory retrieval were examined in order to identify the neural conditions that precede accurate memory retrieval, characterize the processes that contribute to high and low confidence memory responses, and determine which memory processes are impaired after brain injury. Human electroencephalogram (EEG) was recorded during recognition confidence and source memory judgments in three experiments. In Experiment 1, mid-frontal pre-stimulus theta oscillations were found to precede the stimulus presentation of items that were successfully recollected, but they were not found to be predictive of item familiarity. Moreover, during stimulus presentation, recollection was associated with an increase in theta over left parietal regions, and the magnitude of this effect was predicted by the earlier per-stimulus theta effects. The results suggest that pre-stimulus processes set the stage for and facilitate subsequent recollection. In experiment 2, high and low confidence source memory judgments were found to be supported by two electrophysiologically distinct processes. Whereas correct high confidence source memory was associated with a late positive component indicative of recollection, correct low confidence source memory was associated with a late onset negative going ERP that was distinct from both recollection and familiarity based responses. The results indicate that correct source memory responses can be observed even in the absence of recollection. In experiment 3, ERPs were recorded in amnesics in order to determine whether they exhibited selective deficits in recollection, as previous behavioral studies had suggested. Behavioral data showing relatively preserved item recognition along with severely impaired source recollection was consistent with prior studies of these patients, and ERPs revealed that the patients showed no evidence of recollection-related neurophysiology, but maintained normal ERP correlates of familiarity. These results indicate that these patients exhibit selective recollection deficits, are consistent with dual process models of memory, and suggest that source memory depends critically upon the medial temporal lobe structures, such as the hippocampus, which are typically disrupted in amnesia.

Download or read book Investigations of Age related Effects on the Neural Correlates of Recollection and Familiarity written by Tracy Hsiang-Yi Wang and published by . This book was released on 2013 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present research investigated age-related differences in the neural correlates of two putative processes (recollection and familiarity) supporting recognition memory. Functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) were utilized in concert with retrieval tasks that allow trials associated with recollection to be segregated from trials associated with familiarity. Some studies investigating age-related effects on the neural correlates of successful retrieval have reported that the neural correlates of retrieval are larger and more widespread in older subjects than in the young ('cortical over-recruitment'). These studies, however, vary widely in their methodologies, analyses, and even characterization of memory retrieval. The aim of the research described here is to elucidate the effects of age on the neural correlates of recognition memory. The second chapter of this dissertation describes an experiment that characterizes the neural correlates of episodic memory in subjects typically considered 'older' (between the ages of 63-77) and 'younger' (between the ages of 18-30) as indexed by functional magnetic resonance imaging (fMRI). The third chapter describes an analogous Event-related potential (ERP) study that investigated the electrophysiological correlates of recollection and familiarity in the same age groups as the study described in the second chapter. Finally, the fourth chapter describes the final experiment that investigated cortical reinstatement of material-specific recollection related effects in young and older subjects. This final study utilized univariate analysis to identify cortical reinstatement of material specific recollection-related activity, while using multivariate pattern analysis to quantify the amount of reinstatement in each age group. Overall, the findings provide evidence that there is no significant neural reorganization for the retrieval of episodic memory in the face of advancing age. Rather, the presented research suggests that under circumstances where encoding and retrieval are well controlled, the neural correlates of episodic retrieval remain largely invariant as a function of age.

Download or read book Recognition Memory Revisited written by Elliott C. Jardin and published by . This book was released on 2018 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study provides a better understanding of contributing factors to age differences in human episodic memory. A recurrent finding in recognition memory is that older adults tend to have lower overall accuracy and tend to make fewer false-alarm errors in judging new items, relative miss errors (Coyne, Allen & Wickens, 1986; Danziger, 1980; Poon and Fozard 1980). Two possible causes for decline in these abilities include an age-related decrement in speed of processing (Salthouse 1991) and changes in information processing ability due to entropy (Allen, Kaufman, Smitch, & Propper 1998a; Mallik et al., in preparation). Additionally, age differences may be partially explained by a tendency for older adults to exhibit a conservative response bias. Surprisingly this study found no age-related differences in recognition memory accuracy, and older adults did not show a more conservative response bias. Due to these null results for age, the study examined the role of response bias (propensity to indicate a probe as being recognized, or new) on recognition memory accuracy and the role of the release from proactive interference (PI) across age. This study introduces a new ERP (Event-Related Potential) component to measure the recognition of "miss" responses called "FN400 Below Threshold." This component, when looked at collapsed across Experiment 1 & Experiment 2 was positively correlated to behavioral accuracy suggesting that a more conservative response criterion hurts overall behavioral accuracy. Experiment 2 found that words learned from four categories were easier to remember than words from a single category due to a reduction in interference across items. This effect was found for both age groups.

Download or read book The Oxford Handbook of Event Related Potential Components written by Steven J. Luck and published by OUP USA. This book was released on 2012-01-12 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Oxford Handbook of Event-Related Potential Components provides a detailed and comprehensive overview of the major ERP components. It covers components related to multiple research domains, including perception, cognition, emotion, neurological and psychiatric disorders, and lifespan development.

Download or read book Theories Of Memory written by Alan F. Collins and published by Psychology Press. This book was released on 2018-12-12 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a collection of chapters by some of the most influential memory researchers. Chapters focus on a wide range of key areas of research. The main emphasis throughout the book is on theoretical issues and how they relate to existing empirical work. The contributions reveal that memory continues to be an important research area and they provide a state-of- the-art perspective on this central aspect of cognitive psychology.

Download or read book Neural Plasticity and Memory written by Federico Bermudez-Rattoni and published by CRC Press. This book was released on 2007-04-17 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, multidisciplinary review, Neural Plasticity and Memory: From Genes to Brain Imaging provides an in-depth, up-to-date analysis of the study of the neurobiology of memory. Leading specialists share their scientific experience in the field, covering a wide range of topics where molecular, genetic, behavioral, and brain imaging techniq

Download or read book The Nature of Cognition written by Robert J. Sternberg and published by MIT Press. This book was released on 1999 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first to introduce the study of cognition in terms of the major conceptual themes that underlie virtually all the substantive topics.

Download or read book An Investigation of Continuous and Discontinuous Memory Signals Supporting Episodic Memory Retrieval written by Sarah Yu and published by . This book was released on 2013 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This body of research investigates the neural correlates of recollection- and familiarity-driven recognition memory using functional neuroimaging (fMRI), electrophysiological (EEG and ERP), and behavioral methods. In particular, the aim of the present body of work was to characterize the functional significance of familiarity and recollection, and investigate whether the neural correlates underlying these signals are thresholded or continuous. The ERP experiment in Chapter 2 found that the ERP correlate of familiarity is modulated as a function of the strength of the familiarity signal. Furthermore, this experiment found functionally, topographically, and temporally dissociable ERP correlates of recollection and familiarity, suggesting that these processes are themselves distinct. The experiments in Chapters 3-4 identified and characterized the fMRI correlates of recollection in the hippocampus and left lateral parietal cortex, respectively. We found that activity in the hippocampus tracked the amount of contextual information recollected and not memory strength. In the lateral parietal cortex, we found that angular gyrus activity tracked the amount of recollected information, whereas activity in the temporo-parietal junction (TPJ) was enhanced for items endorsed as recollected, but insensitive to the amount of information recollected. The high-resolution fMRI experiment in Chapter 5 extended our findings in the hippocampus and angular gyrus, and investigated the response profiles of other members of the 'recollection-sensitive' network with respect to amount of contextual information recollected. Together, the findings in Chapters 3-5 demonstrated that the members of the recollection network exhibit different response profiles with respect to amount of information recollected, suggesting that members of this network may play different roles in supporting contextual recollection. Collectively, the findings in this body of work support the notion that familiarity and recollection are distinct recognition processes. Furthermore, each of these processes positively tracks the confidence with which they are endorsed.

Download or read book Working Memory Capacity written by Nelson Cowan and published by Psychology Press. This book was released on 2016-04-14 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea of one's memory "filling up" is a humorous misconception of how memory in general is thought to work; it actually has no capacity limit. However, the idea of a "full brain" makes more sense with reference to working memory, which is the limited amount of information a person can hold temporarily in an especially accessible form for use in the completion of almost any challenging cognitive task. This groundbreaking book explains the evidence supporting Cowan's theoretical proposal about working memory capacity, and compares it to competing perspectives. Cognitive psychologists profoundly disagree on how working memory is limited: whether by the number of units that can be retained (and, if so, what kind of units and how many), the types of interfering material, the time that has elapsed, some combination of these mechanisms, or none of them. The book assesses these hypotheses and examines explanations of why capacity limits occur, including vivid biological, cognitive, and evolutionary accounts. The book concludes with a discussion of the practical importance of capacity limits in daily life. This 10th anniversary Classic Edition will continue to be accessible to a wide range of readers and serve as an invaluable reference for all memory researchers.

Download or read book Prospective Memory written by Matthias Kliegel and published by Psychology Press. This book was released on 2007-10-16 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decade, the topic of prospective memory the encoding, storage and delayed retrieval of intended actions has attracted much interest, and this is reflected in a rapidly growing body of literature: 350 scientific articles have been published on this topic since the appearance of the first edited book in 1996. In addition to the quan

Download or read book Neuropsychology of Memory Third Edition written by Larry R. Squire and published by Guilford Press. This book was released on 2003-03-13 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important reference and text brings together leading neuroscientists to describe approaches to the study of memory. Among major approaches covered are lesions; electrophysiology; single-unit recording; pharmacology; and molecular genetics. Chapters are organized into three sections, presenting state-of-the-art studies of memory in humans, nonhuman primates, and rodents and birds. Each chapter explicates the theoretical and methodological underpinnings of the authors' research program, reviews the latest empirical findings, and identifies salient directions for future investigation. Included are more than 50 illustrations.

Download or read book Prospective Memory written by Maria A. Brandimonte and published by Psychology Press. This book was released on 2014-02-25 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Devoted exclusively to prospective memory, this volume organizes the research and thoughts of the important contributors to the field in one comprehensive resource. The chapter authors not only focus on their own work, but also review other research areas and address those where the methods and theories from the retrospective memory literature are useful and where they fall short. Each section is followed by at least one commentary written by a prominent scholar in the field of memory. The commentators present critical analyses of the chapters, note ideas that they found particularly exciting, and use these ideas as a foundation on which to elaborate their own views of prospective memory. This volume will stimulate the thinking of active prospective memory researchers, provide a coherent organization of the area for the increasing number of people who are interested in prospective memory but who are not yet actively conducting research in the area, and serve as a book of readings for upper division seminars.

Download or read book The Neurology of Consciousness written by Steven Laureys and published by Academic Press. This book was released on 2015-08-12 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of The Neurology of Consciousness is a comprehensive update of this ground-breaking work on human consciousness, the first book in this area to summarize the neuroanatomical and functional underpinnings of consciousness by emphasizing a lesional approach offered by the study of neurological patients. Since the publication of the first edition in 2009, new methodologies have made consciousness much more accessible scientifically, and, in particular, the study of disorders, disruptions, and disturbances of consciousness has added tremendously to our understanding of the biological basis of human consciousness. The publication of a new edition is both critical and timely for continued understanding of the field of consciousness. In this critical and timely update, revised and new contributions by internationally renowned researchers—edited by the leaders in the field of consciousness research—provide a unique and comprehensive focus on human consciousness. The new edition of The Neurobiology of Consciousness will continue to be an indispensable resource for researchers and students working on the cognitive neuroscience of consciousness and related disorders, as well as for neuroscientists, psychologists, psychiatrists, and neurologists contemplating consciousness as one of the philosophical, ethical, sociological, political, and religious questions of our time. New chapters on the neuroanatomical basis of consciousness and short-term memory, and expanded coverage of comas and neuroethics, including the ethics of brain death The first comprehensive, authoritative collection to describe disorders of consciousness and how they are used to study and understand the neural correlates of conscious perception in humans. Includes both revised and new chapters from the top international researchers in the field, including Christof Koch, Marcus Raichle, Nicholas Schiff, Joseph Fins, and Michael Gazzaniga

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 Relating Theory and Data written by William E. Hockley and published by Psychology Press. This book was released on 2014-01-02 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: This festschrift represents the proceedings of a conference held in honor of Bennet B. Murdock, one of the foremost researchers and theoreticians on human memory and cognition. A highly renowned investigator respected for both his empirical and theoretical contributions to the field, Murdock summarized and focused a large amount of research activity with his 1974 book Human Memory: Theory and Data. This unique collection of articles addresses many of the issues discussed in his classic text. Divided into five principal sections, its coverage includes: theoretical perspectives on human memory ranging from a biological view to an exposition of the value of formal models; recent progress in the study of processes in immediate memory and recognition memory; and new developments in componential and distributed approaches to the modeling of human memory. Each section concludes with an integrative commentary provided by some of Murdock’s eminent colleagues from the University of Toronto. Thus, this book offers a diversity of perspectives on contemporary topics in the discipline, and will be of interest to students and scholars in all branches of cognitive science.