Modeling Phase Transitions In The Brain
DOWNLOAD
Download Modeling Phase Transitions In The Brain PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Modeling Phase Transitions In The Brain book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Modeling Phase Transitions In The Brain
DOWNLOAD
Author : D. Alistair Steyn-Ross
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-03-14
Modeling Phase Transitions In The Brain written by D. Alistair Steyn-Ross and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-03-14 with Medical categories.
Foreword by Walter J. Freeman. The induction of unconsciousness using anesthetic agents demonstrates that the cerebral cortex can operate in two very different behavioral modes: alert and responsive vs. unaware and quiescent. But the states of wakefulness and sleep are not single-neuron properties---they emerge as bulk properties of cooperating populations of neurons, with the switchover between states being similar to the physical change of phase observed when water freezes or ice melts. Some brain-state transitions, such as sleep cycling, anesthetic induction, epileptic seizure, are obvious and detected readily with a few EEG electrodes; others, such as the emergence of gamma rhythms during cognition, or the ultra-slow BOLD rhythms of relaxed free-association, are much more subtle. The unifying theme of this book is the notion that all of these bulk changes in brain behavior can be treated as phase transitions between distinct brain states. Modeling Phase Transitions in the Brain contains chapter contributions from leading researchers who apply state-space methods, network models, and biophysically-motivated continuum approaches to investigate a range of neuroscientifically relevant problems that include analysis of nonstationary EEG time-series; network topologies that limit epileptic spreading; saddle--node bifurcations for anesthesia, sleep-cycling, and the wake--sleep switch; prediction of dynamical and noise-induced spatiotemporal instabilities underlying BOLD, alpha-, and gamma-band Hopf oscillations, gap-junction-moderated Turing structures, and Hopf-Turing interactions leading to cortical waves.
Modeling Phase Transitions In The Brain
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2011-04-11
Modeling Phase Transitions In The Brain written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-11 with categories.
Validating Neuro Computational Models Of Neurological And Psychiatric Disorders
DOWNLOAD
Author : Basabdatta Sen Bhattacharya
language : en
Publisher: Springer
Release Date : 2015-10-30
Validating Neuro Computational Models Of Neurological And Psychiatric Disorders written by Basabdatta Sen Bhattacharya and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-30 with Medical categories.
This book is a collection of articles by leading researchers working at the cutting edge of neuro-computational modelling of neurological and psychiatric disorders. Each article contains model validation techniques used in the context of the specific problem being studied. Validation is essential for neuro-inspired computational models to become useful tools in the understanding and treatment of disease conditions. Currently, the immense diversity in neuro-computational modelling approaches for investigating brain diseases has created the need for a structured and coordinated approach to benchmark and standardise validation methods and techniques in this field of research. This book serves as a step towards a systematic approach to validation of neuro-computational models used for studying brain diseases and should be useful for all neuro-computational modellers.
Cognitive Phase Transitions In The Cerebral Cortex Enhancing The Neuron Doctrine By Modeling Neural Fields
DOWNLOAD
Author : Robert Kozma
language : en
Publisher: Springer
Release Date : 2015-10-30
Cognitive Phase Transitions In The Cerebral Cortex Enhancing The Neuron Doctrine By Modeling Neural Fields written by Robert Kozma and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-30 with Technology & Engineering categories.
This intriguing book was born out of the many discussions the authors had in the past 10 years about the role of scale-free structure and dynamics in producing intelligent behavior in brains. The microscopic dynamics of neural networks is well described by the prevailing paradigm based in a narrow interpretation of the neuron doctrine. This book broadens the doctrine by incorporating the dynamics of neural fields, as first revealed by modeling with differential equations (K-sets). The book broadens that approach by application of random graph theory (neuropercolation). The book concludes with diverse commentaries that exemplify the wide range of mathematical/conceptual approaches to neural fields. This book is intended for researchers, postdocs, and graduate students, who see the limitations of network theory and seek a beachhead from which to embark on mesoscopic and macroscopic neurodynamics.
Scale Free Dynamics And Critical Phenomena In Cortical Activity
DOWNLOAD
Author : Biyu J. He
language : en
Publisher: Frontiers E-books
Release Date :
Scale Free Dynamics And Critical Phenomena In Cortical Activity written by Biyu J. He and has been published by Frontiers E-books this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
The brain is composed of many interconnected neurons that form a complex system, from which thought, behavior, and creativity emerge through self-organization. By studying the dynamics of this network, some basic motifs can be identified. Recent technological and computational advances have led to rapidly accumulating empirical evidence that spontaneous cortical activity exhibits scale-free and critical behavior. Multiple experiments have identified neural processes without a preferred timescale in the avalanche-like spatial propagation of activity in cortical slices and in self-similar time series of local field potentials. Even at the largest scale, scale-free behavior can be observed by looking at the power distributions of brain rhythms as observed by neuroimaging. These findings may indicate that brain dynamics are always close to critical states – a fact with important consequences for how brain accomplishes information transfer and processing. Capitalizing on analogies between the collective behavior of interacting particles in complex physical systems and interacting neurons in the cortex, concepts from non-equilibrium thermodynamics can help to understand how dynamics are organized. In particular, the concepts of phase transitions and self-organized criticality can be used to shed new light on how to interpret collective neuronal dynamics. Despite converging support for scale-free and critical dynamics in cortical activity, the implications for accompanying cognitive functions are still largely unclear. This Research Topic aims to facilitate the discussion between scientists from different backgrounds, ranging from theoretical physics, to computational neuroscience, brain imaging and neurophysiology. By stimulating interactions with the readers of Frontiers in Physiology, we hope to advance our understanding of the role of scale-freeness and criticality in organizing brain dynamics. What do these new perspectives tell us about the brain and to what extent are they relevant for our cognitive functioning? For this Research Topic, we therefore solicit reviews, original research articles, opinion and method papers, which address the principles that organize the dynamics of cortical activity. While focusing on work in the neurosciences, this Research Topic also welcomes theoretical contributions from physics or computational approaches.
The Illustrated Wavelet Transform Handbook
DOWNLOAD
Author : Paul S. Addison
language : en
Publisher: CRC Press
Release Date : 2017-01-06
The Illustrated Wavelet Transform Handbook written by Paul S. Addison and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-06 with Mathematics categories.
This second edition of The Illustrated Wavelet Transform Handbook: Introductory Theory and Applications in Science, Engineering, Medicine and Finance has been fully updated and revised to reflect recent developments in the theory and practical applications of wavelet transform methods. The book is designed specifically for the applied reader in science, engineering, medicine and finance. Newcomers to the subject will find an accessible and clear account of the theory of continuous and discrete wavelet transforms, while readers already acquainted with wavelets can use the book to broaden their perspective. One of the many strengths of the book is its use of several hundred illustrations, some in colour, to convey key concepts and their varied practical uses. Chapters exploring these practical applications highlight both the similarities and differences in wavelet transform methods across different disciplines and also provide a comprehensive list of over 1000 references that will serve as a valuable resource for further study. Paul Addison is a Technical Fellow with Medtronic, a global medical technology company. Previously, he was co-founder and CEO of start-up company, CardioDigital Ltd (and later co-founded its US subsidiary, CardioDigital Inc) - a company concerned with the development of novel wavelet-based methods for biosignal analysis. He has a master’s degree in engineering and a PhD in fluid mechanics, both from the University of Glasgow, Scotland (founded 1451). His former academic life as a tenured professor of fluids engineering included the output of a large number of technical papers, covering many aspects of engineering and bioengineering, and two textbooks: Fractals and Chaos: An Illustrated Course and the first edition of The Illustrated Wavelet Transform Handbook. At the time of publication, the author has over 100 issued US patents concerning a wide range of medical device technologies, many of these concerning the wavelet transform analysis of biosignals. He is both a Chartered Engineer and Chartered Physicist.
Information Sciences 2007 Proceedings Of The 10th Joint Conference
DOWNLOAD
Author : Paul P Wang
language : en
Publisher: World Scientific
Release Date : 2007-07-18
Information Sciences 2007 Proceedings Of The 10th Joint Conference written by Paul P Wang and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-07-18 with categories.
This proceeding contains the cutting-edge research results in information science and technology, and their related technology. Recent scientific breakthroughs such as invisibility cloak and meta-materials, data mining techniques, advanced game playing in artificial intelligence, nano-technology, unlikely event probability, and fuzzy logic reasoning are just a few outstanding examples. Walter Freeman's 80th birthday celebration is another highlight of this proceedings, because this major event is attended by many leading scientists from around the world. Key speakers include Charles Falco, Water Freeman, Thomas Huang, Meyya Meyyappan, Lotfi Zadeh, Bernette Bouchon Meunier, Heather Carlson, Ling Guan, Etienne Kerre and John Mordes.
Criticality As A Signature Of Healthy Neural Systems Multi Scale Experimental And Computational Studies
DOWNLOAD
Author : Paolo Massobrio
language : en
Publisher: Frontiers Media SA
Release Date : 2015-05-08
Criticality As A Signature Of Healthy Neural Systems Multi Scale Experimental And Computational Studies written by Paolo Massobrio and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05-08 with Nervous system categories.
Since 2003, when spontaneous activity in cortical slices was first found to follow scale-free statistical distributions in size and duration, increasing experimental evidences and theoretical models have been reported in the literature supporting the emergence of evidence of scale invariance in the cortex. Although strongly debated, such results refer to many different in vitro and in vivo preparations (awake monkeys, anesthetized rats and cats, in vitro slices and dissociated cultures), suggesting that power law distributions and scale free correlations are a very general and robust feature of cortical activity that has been conserved across species as specific substrate for information storage, transmission and processing. Equally important is that the features reminiscent of scale invariance and criticality are observed at scale spanning from the level of interacting arrays of neurons all the way up to correlations across the entire brain. Thus, if we accept that the brain operates near a critical point, little is known about the causes and/or consequences of a loss of criticality and its relation with brain diseases (e.g. epilepsy). The study of how pathogenetical mechanisms are related to the critical/non-critical behavior of neuronal networks would likely provide new insights into the cellular and synaptic determinants of the emergence of critical-like dynamics and structures in neural systems. At the same time, the relation between the impaired behavior and the disruption of criticality would help clarify its role in normal brain function. The main objective of this Research Topic is to investigate the emergence/disruption of the emergent critical-like states in healthy/impaired neural systems.
Dynamical Systems Approach To Cognition The Concepts And Empirical Paradigms Based On Self Organization Embodiment And Coordination Dynamics
DOWNLOAD
Author : Wolfgang Tschacher
language : en
Publisher: World Scientific
Release Date : 2003-10-14
Dynamical Systems Approach To Cognition The Concepts And Empirical Paradigms Based On Self Organization Embodiment And Coordination Dynamics written by Wolfgang Tschacher and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-10-14 with Medical categories.
The shared platform of the articles collected in this volume is used to advocate a dynamical systems approach to cognition. It is argued that recent developments in cognitive science towards an account of embodiment, together with the general approach of complexity theory and dynamics, have a major impact on behavioral and cognitive science. The book points out that there are two domains that follow naturally from the stance of embodiment: first, coordination dynamics is an established empirical paradigm that is best able to aid the approach; second, the obvious goal-directedness of intelligent action (i.e., intentionality) is nicely addressed in the framework of the dynamical synergetic approach.
Mathematical Modelling In Engineering Human Behaviour 2018
DOWNLOAD
Author : Lucas Jódar
language : en
Publisher: MDPI
Release Date : 2019-04-15
Mathematical Modelling In Engineering Human Behaviour 2018 written by Lucas Jódar and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-15 with Mathematics categories.
This book includes papers in cross-disciplinary applications of mathematical modelling: from medicine to linguistics, social problems, and more. Based on cutting-edge research, each chapter is focused on a different problem of modelling human behaviour or engineering problems at different levels. The reader would find this book to be a useful reference in identifying problems of interest in social, medicine and engineering sciences, and in developing mathematical models that could be used to successfully predict behaviours and obtain practical information for specialised practitioners. This book is a must-read for anyone interested in the new developments of applied mathematics in connection with epidemics, medical modelling, social issues, random differential equations and numerical methods.