Download or read book Inhibition in the process of feature binding written by Snehlata Jaswal and published by Frontiers E-books. This book was released on with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Feature binding is the process whereby different features such as shape, colour, size, orientation, location, etc. are linked together to form a coherent representation of the object. It is a ubiquitous physiological sequence and an essential phase in information processing, for it provides the basis of mental representations, which in turn, are requisite for all cognitive functions. It is important to realize though, that binding is not an isolated process. There are myriad stimuli impinging on our senses at all times, vying to gain entry into our consciousness. Further, not only does sensory input emanate from a complex, dynamic environment, but it also enters a neural system that is already activated by previous inputs and is oriented towards future goals. Which aspects of the momentary sensory input are selected for further processing depends as much on the state of the system as it does on the sensory input itself. Indeed, some fundamental questions one may ask about binding are whether, why, and how, some features are selected for binding at the cost of others. The bottom-up view of information processing is that the input received by the brain is processed in a largely automatic way to the higher centers in the brain. The physiological basis of binding is postulated to be either conjunctively coding neurons, or synchrony among participating neural networks to encode features and out of phase neural activity to encode separate objects. But, mere perceptual integration of features, whether by synchrony or by specialized neurons, does not even begin to capture the implication that binding results in coherent objects, fundamental for further information processing. An object is not only a bundle of features. At the very least, the features need to be integrated so that the object can be distinguished from other objects. This implies selection and manipulation of the basic information supplied by separate features. The top-down view of information processing contends that binding is more influenced by the reentrant processes (the downward and lateral feedback to the lower areas, emanating from the higher centers of the brain). Reentrant processes not only help to confirm what is correct but also resolve competition. These top-down processes are linked to attention and higher cognitive functions help select relevant input. We aim to debate what happens to the irrelevant information in the process of binding. Are irrelevant features simply lost from the system over time, or are they deliberately deleted? Is there any inhibitory process involved in binding? What is the empirical evidence for such a process at the behavioral level? Is such a process active and resource-demanding or relatively passive and automatic? What do neuropsychological studies show? What are the physiological underpinnings of such a process? How is it incorporated in computational models to increase our understanding of the binding process? The idea is to bring together diverse views on ‘Inhibition in Feature Binding’ with the ultimate aim of better understanding the process of binding and invoking informed and insightful future research.
Download or read book Attention in Cognitive Systems written by Lucas Paletta and published by Springer. This book was released on 2009-02-21 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attention has represented a core scienti?c topic in the design of AI-enabled systems in the last few decades. Today, in the ongoing debate, design, and c- putationalmodelingofarti?cialcognitivesystems,attentionhasgainedacentral position as a focus of research. For instance, attentional methods are considered in investigating the interfacing of sensory and cognitive information processing, for the organization of behaviors, and for the understanding of individual and social cognition in infant development. Whilevisualcognitionplaysacentralroleinhumanperception,?ndingsfrom neuroscience and experimental psychology have provided strong evidence about the perception–action nature of cognition. The embodied nature of senso- motor intelligence requires a continuous and focused interplay between the c- trolofmotoractivitiesandtheinterpretationoffeedbackfromperceptualmod- ities. Decision making about the selection of information from the incoming sensory stream – in tune with contextual processing on a current task and an agent’s global objectives – becomes a further challenging issue in attentional control. Attention must operate at interfaces between a bottom-up-driven world interpretationandtop-down-driveninformationselection,thusactingatthecore of arti?cial cognitive systems. These insights have already induced changes in AI-related disciplines, such as the design of behavior-based robot control and the computational modeling of animats. Today, the development of enabling technologiessuch as autonomous robotic systems,miniaturizedmobile–evenwearable–sensors,andambientintelligence systems involves the real-time analysis of enormous quantities of data. These data have to be processed in an intelligent way to provide “on time delivery” of the required relevant information. Knowledge has to be applied about what needs to be attended to, and when, and what to do in a meaningful sequence, in correspondence with visual feedback.
Download or read book Attention and Time written by Kia Nobre and published by . This book was released on 2010 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our ability to attend selectively to our surroundings - taking notice of the things that matter, and ignoring those that don't - is crucial if we are to negotiate the world around us in an efficient manner. Several aspects of the temporal dimension turn out to be critical in determining how we can put together and select the events that are important to us as they themselves unfold over time. For example, we often miss events that happen while we are occupied perceiving or responding to another stimulus. On the other hand, temporal regularity between events can also greatly improve our perception. In addition, our perception of the passage of time itself can also be distorted as while we are performing actions or paying attention to different aspects of the environment. Surprisingly, this fascinating and fundamental interplay between ' attention' and 'time' has been relatively neglected in the psychology and neuroscience literatures until very recently. Attention & Time is the first book to address this foundational topic, bringing together several intriguing and hitherto fragmented findings into a compelling and cohesive field of enquiry. The book contains thirty-one critical-review chapters from internationally recognised experts in the field, carefully organised into three stand-alone, yet extensively cross-referenced, themed sections. Each section focuses on distinct ways in which attention and time influence one another. These sections, each encompassing a range of methodologies from classical cognitive psychology to single-cell neurophysiology, provide functionally unifying frameworks to help guide the reader through the many various experimental and theoretical approaches adopted. Section 1 considers variations of attention across time, and explores how attentional allocation is limited by very short or very long intervals of time. Section 2 describes several types of temporal illusion, illustrating how attention can modulate the perception of the passage of time itself. "A watched pot never boils" and, conversely, "time flies when you're having fun" nicely capture the experimental observation that the degree of attention allocated to stimulus timing contributes to its subjective duration. Finally, Section 3 examines how attention can be directed in time, to predictable or expected moments in time, so as to optimise behaviour. Bringing conceptually discrete, yet functionally related, fields of temporal attention research together within a single volume, this book provides a comprehensive overview that will be of value to the interested novice in cognitive neuroscience, whilst also inspiring experts in the field to make, perhaps previously overlooked, links with their own field of research.
Download or read book Attention Not Self written by Jonardon Ganeri and published by Oxford University Press. This book was released on 2017 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jonardon Ganeri presents an account of mind in which attention, not self, explains the experiential and normative situatedness of human beings in the world. Attention consists in an organisation of awareness and action at the centre of which there is neither a practical will nor a phenomenological witness. Attention performs two roles in experience, a selective role of placing and a focal role of access. Attention improves our epistemic standing, because it is in the nature of attention to settle on what is real and to shun what is not real. When attention is informed by expertise, it is sufficient for knowledge. That gives attention a reach beyond the perceptual: for attention is a determinable whose determinates include the episodic memory from which our narrative identities are made, the empathy for others that situates us in a social world, and the introspection that makes us self-aware. Empathy is other-directed attention, placed on you and focused on your states of mind; it is akin to listening. Empathetic attention is central to a range of experiences that constitutively require a contrast between oneself and others, all of which involve an awareness of oneself as the object of another's attention. An analysis of attention as mental action gainsays authorial conceptions of self, because it is the nature of intending itself, effortful attention in action, to settle on what to do and to shun what not to do. In ethics, a conception of persons as beings with a characteristic capacity for attention offers hope for resolution in the conflict between individualism and impersonalism. Attention, Not Self is a contribution to a growing body of work that studies the nature of mind from a place at the crossroads of three disciplines: philosophy in the analytical and phenomenological traditions, contemporary cognitive science and empirical work in cognitive psychology, and Buddhist theoretical literature.
Download or read book Inhibition in Cognition written by David S. Gorfein and published by American Psychological Association (APA). This book was released on 2007 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gorfein and MacLeod have compiled a collection of chapters written by top researchers in psychology discussing the concept of inhibition at the level of cognition and behavior. This work thoroughly addresses the concept of inhibition and covers the broad range of cognition, from attention and performance through memory and language.
Download or read book Handbook of Human Multitasking written by Andrea Kiesel and published by Springer Nature. This book was released on 2022-09-12 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook on human multitasking provides an integrative overview on simultaneous and sequential multitasking and thus combines theorizing on dual task limitations as well as costs related to task switching. In addition to a wide range of empirical findings and their theoretical integration, the editors provide a number of applications of multitasking, like training, interindividual differences and applied research in traffic and health psychology and music expertise. The book is suitable for people interested in multitasking, that is, for researchers and graduate students of cognitive psychology, movement science, sport psychology, cognitive neuroscience, cognitive and neurological rehabilitation, aging sciences, and broader cognitive science.
Download or read book Features Transmission Detection and Case Studies in COVID 19 written by Rajkumar Rajendram and published by Elsevier. This book was released on 2024-06-15 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Features, Transmission, Detection, and Case Studies in COVID-19 examines the effects of the virus on the body, as well as its transmission and clinical profile. This volume begins with an introduction to the virus and its pathogenesis, transmission, and avoidance, followed by sections on pulmonary and cardiovascular effects, obesity, diabetes, the liver, detection issues, and biomarkers. Vaccines and treatment are also discussed. Specific case studies covered include hypoxia, acute kidney injury, pneumonia, and neurological effects. This volume is relevant for all clinicians and scientists working to ensure the best outcomes for patients with COVID-19. Discusses COVID-19 biology, including pathogenesis and transmission Describes systemic issues caused by COVID-19, including cardiovascular effects and loss of taste and smell Outlines detection methods, biomarkers associated with severity, and disease outcomes Features individual chapter introductions, summaries, and case studies to provide comprehensive descriptions of COVID-19 symptoms and effects Contains chapters with key facts, dictionary of terms, summary points, applications to other areas pertinent to each chapter, and policies and procedures
Download or read book Neurobiology Clinical Course and Therapeutic Approaches of Treatment Resistant Schizophrenia Toward an Integrated View written by Felice Iasevoli and published by Frontiers Media SA. This book was released on 2020-01-13 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Medial Prefrontal Cortex and Integration in ASD and Typical Cognition written by Dorit Ben Shalom and published by Frontiers Media SA. This book was released on 2019-05-17 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook explores within-discipline implications and and across-discipline connections of the Ben Shalom (2009) model. The 12 papers hail from psychology, neuroscience, psychiatry, philosophy, and biology.
Download or read book Intentional Forgetting written by Jonathan M. Golding and published by Psychology Press. This book was released on 2013-06-17 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on intentional forgetting has been conducted in various forms and under various names for at least 30 years, but until now no effort has been made to present these different perspectives in one place. Comprising both review chapters and new empirical studies, this book brings together the many research paradigms investigating intentional forgetting, thereby highlighting the commonalities that link these seemingly disparate areas of research. It serves as a "case study" of one phenomenon in memory--the intention to forget or to modify memory. Why is research on intentional forgetting important? It helps to increase the understanding of how memory functions, especially with regard to its updating. In William James' "booming, buzzing confusion," we frequently are unable to adequately process all of the information that we experience; on-line forgetting of some information is necessary. Moreover, we must often replace existing information with new information, as when someone we know relocates and acquires a new address and telephone number. Investigating this updating ability has been the main thrust of research on intentional forgetting, specifically those studies on the directed forgetting phenomenon. Cognitive experiments on directed forgetting have shown that we are able to deal more effectively with large amounts of information by following instructions to treat some of the information as "to be forgotten." In this way, interference is reduced and we are able to devote all of our resources to the remaining to-be-remembered information. The mechanisms that lead to this reduction continue to promote new experiments, but over a quarter century of research maintains that the directed forgetting effect is robust.
Download or read book Interference and Inhibition in Cognition written by Charles J. Brainerd and published by Academic Press. This book was released on 1995-02-08 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life scientists have long been familiar with the notion of interference and inhibition in biological systems 3/4 most notably in the neuron. Now these concepts have been applied to cognitive psychology to explain processes in attention, learning, memory, comprehension, and reasoning. Presenting an overview of research findings in this realm, Interference and Inhibition in Cognition discusses what processes are sensitive to interference, individual differences in interference sensitivity, and how age and experience factor into one's ability to inhibit interference. Provides empirical and theoretical perspectives Discusses how inhibition and interference change with age and experience Illustrates the ways in which interference affects language processing, attention, perception, learning, and memory
Download or read book Dynamic Coordination in the Brain written by Christoph von der Malsburg and published by MIT Press. This book was released on 2010 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Nervous systems do not live by the rate code alone. The ceaseless activities of groups of neurons are choregraphed into waves, oscillations, synchronized rhythms, and transient coalitions; it is these that underlie behavior, memory, and conscious perception. This exuberant manifesto masterfully summarizes and reflects upon the relevant evidence of these patterns from all manner of brains, small and large." --
Download or read book Neural Networks Computational Models and Applications written by Huajin Tang and published by Springer Science & Business Media. This book was released on 2007-03-12 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neural Networks: Computational Models and Applications presents important theoretical and practical issues in neural networks, including the learning algorithms of feed-forward neural networks, various dynamical properties of recurrent neural networks, winner-take-all networks and their applications in broad manifolds of computational intelligence: pattern recognition, uniform approximation, constrained optimization, NP-hard problems, and image segmentation. The book offers a compact, insightful understanding of the broad and rapidly growing neural networks domain.
Download or read book Computational Modeling of Drugs Against Alzheimer s Disease written by Kunal Roy and published by Springer Nature. This book was released on 2023-06-30 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition volume expands on the previous edition with updated descriptions on different computational methods encompassing ligand-based, structure-based, and combined approaches with their recent applications in anti-Alzheimer drug design. Different background topics like recent advancements in research on the development of novel therapies and their implications in the treatment of Alzheimer’s Disease (AD) have also been covered for completeness. Special topics like basic information science methods for insight into neurodegenerative pathogenesis, drug repositioning and network pharmacology, and online tools to predict ADMET behavior with reference to anti-Alzheimer drug development have also been included. In the Neuromethods series style, chapter include the kind of detail and key advice from the specialists needed to get successful results in your laboratory. Cutting-edge and thorough, Computational Modeling of Drugs Against Alzheimer’s Disease, Second Edition is a valuable resource for all researchers and scientists interested in learning more about this important and developing field.
Download or read book The Practice of Medicinal Chemistry written by Camille Georges Wermuth and published by Academic Press. This book was released on 2011-05-02 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Practice of Medicinal Chemistry fills a gap in the list of available medicinal chemistry literature. It is a single-volume source on the practical aspects of medicinal chemistry. Considered ""the Bible"" by medicinal chemists, the book emphasizes the methods that chemists use to conduct their research and design new drug entities. It serves as a practical handbook about the drug discovery process, from conception of the molecules to drug production. The first part of the book covers the background of the subject matter, which includes the definition and history of medicinal chemistry, the measurement of biological activities, and the main phases of drug activity. The second part of the book presents the road to discovering a new lead compound and creating a working hypothesis. The main parts of the book discuss the optimization of the lead compound in terms of potency, selectivity, and safety. The Practice of Medicinal Chemistry can be considered a ""first-read"" or ""bedside book"" for readers who are embarking on a career in medicinal chemistry. NEW TO THIS EDITION: * Focus on chemoinformatics and drug discovery * Enhanced pedagogical features* New chapters including: - Drug absorption and transport - Multi-target drugs* Updates on hot new areas: NEW! Drug discovery and the latest techniques NEW! How potential drugs can move through the drug discovery/ development phases more quickly NEW! Chemoinformatics
Download or read book Preclinical Development Handbook written by Shayne Cox Gad and published by John Wiley & Sons. This book was released on 2008-03-14 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt: A clear, straightforward resource to guide you through preclinical drug development Following this book's step-by-step guidance, you can successfully initiate and complete critical phases of preclinical drug development. The book serves as a basic, comprehensive reference to prioritizing and optimizing leads, dose formulation, ADME, pharmacokinetics, modeling, and regulations. This authoritative, easy-to-use resource covers all the issues that need to be considered and provides detailed instructions for current methods and techniques. Each chapter is written by one or more leading experts in the field. These authors, representing the many disciplines involved in preclinical toxicology screening and testing, give you the tools needed to apply an effective multidisciplinary approach. The editor has carefully reviewed all the chapters to ensure that each one is thorough, accurate, and clear. Among the key topics covered are: * Modeling and informatics in drug design * Bioanalytical chemistry * Absorption of drugs after oral administration * Transporter interactions in the ADME pathway of drugs * Metabolism kinetics * Mechanisms and consequences of drug-drug interactions Each chapter offers a full exploration of problems that may be encountered and their solutions. The authors also set forth the limitations of various methods and techniques used in determining the safety and efficacy of a drug during the preclinical stage. This publication should be readily accessible to all pharmaceutical scientists involved in preclinical testing, enabling them to perform and document preclinical safety tests to meet all FDA requirements before clinical trials may begin.
Download or read book Remembering written by D. Stephen Lindsay and published by Psychology Press. This book was released on 2014-11-13 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 22 chapters in this volume, many of the world’s foremost memory scientists report on their cutting-edge research on the nature of human memory, with several chapters reporting new empirical studies that are being published for the first time. All the contributions are inspired by the work of Larry Jacoby on human memory, with his emphasis on episodic memory -- that is, the processes and mechanisms that enable us to remember our own past experiences. In addition, the volume reflects Jacoby's appreciation that memory enters into a wide range of psychological phenomena, including perceiving, attending, and performing. The stellar list of contributors and the breadth of coverage makes this volume essential reading for researchers and graduate students in cognitive psychology and cognitive neuroscience, as well as being a tribute and celebration of the inspirational, groundbreaking -- and ongoing -- work of Larry Jacoby.
