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Working Memory Capacity

Working Memory Capacity
Author: Nelson Cowan
Publisher: Psychology Press
Total Pages: 238
Release: 2016-04-14
Genre: Psychology
ISBN: 1317232380

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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.


Information Processing Speed in Clinical Populations

Information Processing Speed in Clinical Populations
Author: John DeLuca
Publisher: Psychology Press
Total Pages: 318
Release: 2013-05-13
Genre: Psychology
ISBN: 1134954662

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Although investigated for over 100 years, it is only now that we are beginning to understand how speed of information processing is affected in various clinical populations. Processing speed has a major impact on higher level cognitive abilities and is extremely vulnerable to neurological insult and the aging process. The importance of processing speed with respect to brain function, cognition and overall quality of life is now the focus of a new and exciting body of research in clinical populations. This book provides a scholarly and clinically sensitive review of research on processing speed and its issues in clinical populations. Readers will come away with an in-depth understanding of human information processing speed including its historical development, its relationship to other cognitive functions, the developmental course of the ability across the lifespan, and its impact on everyday life in various clinical populations. Other highlights of the text are its discussion of the speed vs. accuracy trade-off, tools available for measuring processing speed, the unfolding research on genetic contributions to processing speed, and the latest ideas in rehabilitation. With contributing authors who are experts in their fields, Information Processing Speed in Clinical Populations represents a valuable resource for researchers, scholars, and clinicians by providing a concise summary of the existing research on processing speed across an array of disciplines and populations.


Complexity in Biological Information Processing

Complexity in Biological Information Processing
Author: Gregory R. Bock
Publisher: John Wiley & Sons
Total Pages: 266
Release: 2001-08-30
Genre: Science
ISBN: 9780471498322

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Many human diseases arise from the malfunction of signalling components, in particular alterations of multiple components of an integrated signalling network. Experimental and computational tools to describe and quantify these changes are increasingly available, providing a wealth of data that can stimulate systematic analysis of the entire signalling network and enable prediction of disease states not easily recognizable from complex data sets. This groundbreaking book explores the structural and temporal complexity in biological signalling exemplified in neuronal, immunological, humoral and genetic signal transduction networks. With discussions between experimentalists and theoretically oriented scientists, this book takes an interdisciplinary approach that may help switch the analysis of biological signalling from descriptive to predictive science and capture the behaviour of entire systems. Explores the structural and temporal complexity in biological signalling. Represents an unusual collocation of three different areas: immunology, cell signalling and neural networks. Contains interdisciplinary discussions between experimentalists and theoretically oriented scientists, in particular those working on computer simulations.


The Future of Life: Meta-Evolution

The Future of Life: Meta-Evolution
Author: David Hunter Tow
Publisher: Future of Life: Meta-Evolut
Total Pages: 404
Release: 2006-10
Genre: Science
ISBN: 1425726844

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The Future of Life: Meta-Evolution represents the first comprehensive formulation of the hypothesis that evolution is the unifying force underlying the dynamics of all processes in the universe, both organic and inorganic. These include all facets of human existence and civilisation- the sciences, technology, arts, humanities and religion. In essence, by applying quantum information, network and decision theory, it is demonstrated that an overarching evolutionary process shapes the spectrum of life and phenomena in the universe, as a generic paradigm beyond Darwin's original biology-based theory. The Theory of Evolution is undoubtedly the most powerful paradigm ever conceived by humans to explain their own existence. Since Darwin´s epoch-making treatise, Origin of Species', published in 1859, evolution has been centre-stage, universally recognised as the driving force in the emergence of modern humans from the genesis of life on this planet almost 4 billion years ago. However, despite its ubiquitous brilliance as the jewel in the crown of human intellectual achievement, the notion of evolution has never been developed to its full potential. It remains instead constrained within its biological cradle, often reduced in everyday connotation to its lowest common denominator of ´survival of the fittest´. The intention of this book to re-evaluate and expand the Darwinian model of evolution; to demonstrate that its current application is only the tip of the intellectual iceberg and that by combining its formidable biological principles with those of decision complexity, network, quantum and information theory, it emerges as an incalculably deeper and richer model than previously contemplated. It will be demonstrated that the evolutionary engine which drives biological development, also drives all other dynamic adaptive processes- the physical, social, cognitive, economic, political and technological and is in fact the major dynamic governing the Universe, past present and future. It is further proposed to demonstrate that recent developments in artificial intelligence and ubiquitous computing through the Internet, mark the next crucial stage in life's evolution, involving the inevitable symbiosis of vast computational intelligence with the human mind. The major hypothesis developed in this book, of a global all-encompassing Theory of Evolution, coupled with its potential for realising the emancipation of human intelligence and potential, provides a vastly more powerful paradigm for exploring the Future of Life than current scientific scenarios. The resulting Omega state of infinite knowledge and wisdom which is proposed, has been actively championed by a number of eminent 19th and 20th century philosophers such as Teillhard de Chardin, Henri Bergson, Schelling, Alfred Whitehead, Samuel Alexander and more recently by the leading physicist and futurist- Professor Frank Tipler. However to date no equivalent scientific framework for supporting such a hypothesis has been provided. In conclusion, The Future of Life: Meta-Evolution has been written not as an academic text but as primarily a non-technical review of the evidence to support such a hypothesis, in much the same vein as other recent publications in the popular science/philosophy genre. It is hoped that this approach will therefore provide a window into the wider evolutionary debate for the general reader interested in one of the most critical emerging paradigm shifts of the 21st century.


Levels of Cognitive Development

Levels of Cognitive Development
Author: Tracy S. Kendler
Publisher: Psychology Press
Total Pages: 197
Release: 2013-06-17
Genre: Psychology
ISBN: 1134756429

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The proposed levels theory presented in this book concerns some developmental changes in the capacity to selectively encode information and provide rational solutions to problems. These changes are measured by the behavior exhibited in simple discrimination-learning problems that allow both for information to be encoded either selectively or nonselectively and for solutions to be produced by associative learning or by hypothesis-testing. The simplicity of these problems permits comparisons between infrahuman and human performance and also between a wide range of ages among humans. Human adults presented with these problems typically encode the relevant information selectively and solve the problems in a rational mode. Infrahuman animals, however, typically process the information nonselectively and solve the problems in an automatic, associative mode. How human children encode the information and solve the problems depends on their age. The youngest children -- like the infrahuman animals -- mostly encode the information nonselectively and solve the problems in the associative mode. But between early childhood and young adulthood there is a gradual, long-term, quantifiable increase in the tendency to encode the information selectively and to solve the problem by testing plausible hypotheses. The theory explains in some detail the structure, function, development, and operation of the psychological system that produces both the ontogenetic and phylogenetic differences. This system is assumed to be differentiated into an information-processing system and an executive system analogous to the differentiation of the nervous system into afferent and efferent systems. Each of these systems is further differentiated into structural levels, with the higher level, in part, duplicating the function of the lower level, but in a more plastic, voluntary, and efficient manner. The differentiation of the information-processing and executive systems into different functional levels is presumed to have occurred sometime during the evolution of mankind with the higher level evolving later than the lower one as the central nervous system became increasing encephalized. As for human ontogeny, the higher levels are assumed to develop later and more slowly than their lower-level counterparts. In addition to accounting for a substantial body of empirical data, the theory resolves some recurrent controversies that have bedeviled psychology since its inception as a science. It accomplishes this by showing how information can be both nonselectively and selectively encoded, how automatic associative learning and rational problem-solving can operate in harmony, and how cognitive development can be both qualitative and quantitative.


The Future of Life: A Unified Theory of Evolution

The Future of Life: A Unified Theory of Evolution
Author: David Hunter Tow
Publisher: Future of Life Media
Total Pages: 484
Release: 2010-09-11
Genre: Science
ISBN:

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The Future of Life: A Unified Theory of Evolution represents the first comprehensive formulation of the hypothesis that evolution is the unifying force underlying the dynamics of all processes in the universe- both organic and inorganic. In essence by combining information, decision, network and quantum theory, it is demonstrated that an overarching evolutionry process shapes the spectrum of life and all phenomena in the universe, beyond Darwin's original biological theory.


Handbook of Learning and Cognitive Processes (Volume 3)

Handbook of Learning and Cognitive Processes (Volume 3)
Author: William Estes
Publisher: Psychology Press
Total Pages: 353
Release: 2014-06-20
Genre: Psychology
ISBN: 1317672283

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Originally published in 1976, Volume 3 of this Handbook deals primarily with conditions of acquisition, retention and forgetting, and the manner in which acquired information and motivation combine to determine performance. The organization of this volume can be understood in terms of four principal categories. The first category deals with general problems of methodology, the second and third with basic concepts arising from research on human learning and performance and the fourth with applications. Volume 1 presented an overview of the field and introduced principal theoretical and methodological issues that persistently recurred in the expanded treatment of specific research areas which comprise the later volumes. The areas traditionally associated with conditioning, learning theory and the basic psychology of human learning are treated in Volumes 2 and 3. The last three volumes will range over active lines of research having to do with human cognitive processes, at the time: Volume 4, attention, memory storage and retrieval; Volumes 5 and 6, information processing, reading, semantic memory, and problem solving.


Complex Information Coordination Performance: Differential Changes in Working Memory Contributions Following Training. Cognitive Components of Information Coordination

Complex Information Coordination Performance: Differential Changes in Working Memory Contributions Following Training. Cognitive Components of Information Coordination
Author:
Publisher:
Total Pages: 67
Release: 1993
Genre:
ISBN:

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Yee, Hunt, & Pellegrino(1991 introduced the concept of information coordination tasks - tasks that require the concurrent performance of two or more component tasks and the subsequent coordination of component information. In the present experiment different procedures, componential and contextual, were used to train separate groups (N=35, N=33) in a coordination task that involved dynamic spatial and verbal components. Within and between group analyses indicated that posttraining performance improved and the improvement was equivalent across treatments. However, individual differences analyses indicated the treatments promoted different ability-performance profiles, which were related to differential dependencies on working memory resources. The differential dependence on working memory appears related to the functional consistency of information (e.g., Carlson & Lundy, 1992) in the different treatments. Further analyses indicated that both treatments fostered the coordination of the dynamic spatial information within the relative arrival time task - a dynamic spatial coordination task (Law et al., in-press). Sensitivity to relative velocity, working memory capacity, verbal processing ability, and gender mediated whether individuals became coordinators of dynamic spatial information. The broad implications of this study include the importance of combining mean and individual differences analyses in studies of human cognition.


The Class Structure of Capitalist Societies

The Class Structure of Capitalist Societies
Author: Will Atkinson
Publisher: Routledge
Total Pages: 150
Release: 2020-06-11
Genre: Political Science
ISBN: 0429800878

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This first volume of The Class Structure of Capitalist Societies offers a bold and wide-ranging assessment of the shape and effects of class systems across a diverse range of capitalist nations. Plumbing a trove of data and deploying cutting-edge techniques, it carefully maps the distribution of the key sources of power and documents the major convergences and divergences between market societies old and new. Establishing that the multidimensional vision of class proposed decades ago by Pierre Bourdieu appears to hold good throughout Europe, parts of the wider Western world and Eastern Asia, the book goes on to examine a number of significant themes: the relationship between class and occupation; the intersection of class with gender, religion, geography and age; the correspondences between social position and political attitudes; self-positioning in the class structure; and the extent of belief in meritocracy. For all the striking cross-national commonalities, however, the book unearths consistent variations seemingly linked to distinct politico-economic regimes. This title will appeal to scholars and advanced undergraduate and postgraduate students interested in sociology, politics and demography, and is essential reading for all those interested in social class across the globe. Chapter 3 of this book is freely available as a downloadable Open Access PDF at http://www.taylorfrancis.com under a Creative Commons Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND) 4.0 license.