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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Neurosciences
The focus of this thesis are synchronization phenomena in networks and their intrinsic control through time delay, which is ubiquitous in real-world systems ranging from physics and acoustics to neuroscience and engineering. We encounter synchronization everywhere and it can be either a helpful or a detrimental mechanism. In the first part, after a survey of complex nonlinear systems and networks, we show that a seemingly simple system of two organ pipes gives birth to complex bifurcation and synchronization scenarios. Going from a 2-oscillator system to a ring of oscillators, we encounter the intriguing phenomenon of chimera states which are partial synchrony patterns with coexisting domains of synchronized and desynchronized dynamics. For more than a decade scientist have tried to solve the puzzle of this spontaneous symmetry-breaking emerging in networks of identical elements. We provide an analysis of initial conditions and extend our model by the addition of time delay and fractal connectivities. In the second part, we investigate partial synchronization patterns in a neuronal network and explain dynamical asymmetry arising from the hemispheric structure of the human brain. A particular focus is on the novel scenario of partial relay synchronization in multiplex networks. Such networks allow for synchronization of the coherent domains of chimera states via a remote layer, whereas the incoherent domains remain desynchronized. The theoretical framework is demonstrated with different generic models.
Biomedical signals provide unprecedented insight into abnormal or anomalous neurological conditions. The computer-aided diagnosis (CAD) system plays a key role in detecting neurological abnormalities and improving diagnosis and treatment consistency in medicine. This book covers different aspects of biomedical signals-based systems used in the automatic detection/identification of neurological disorders. Several biomedical signals are introduced and analyzed, including electroencephalogram (EEG), electrocardiogram (ECG), heart rate (HR), magnetoencephalogram (MEG), and electromyogram (EMG). It explains the role of the CAD system in processing biomedical signals and the application to neurological disorder diagnosis. The book provides the basics of biomedical signal processing, optimization methods, and machine learning/deep learning techniques used in designing CAD systems for neurological disorders.
An overview of the biochemical mechanisms that produce acute nerve cell death in the brain. Covers injuries and disorders including stroke, brain and spinal cord trauma, hypoglycemic coma, and prolonged epileptic seizures. All of these lead to high concentrations of calcium in nerve cells which, in turn, causes degradation of cytoplasmic proteins, cleavage of nuclear DNA, and eventually cell death. The Second Edition contains 11 thoroughly updated chapters and 3 additional chapters that did not appear in the previous edition.
The human brain is made up of 85 billion neurons, which are connected by over 100 trillion synapses. For more than a century, a diverse array of researchers searched for a language that could be used to capture the essence of what these neurons do and how they communicate. The language they were looking for was mathematics, and we would not be able to understand the brain as we do today without it. In Models of the Mind, author and computational neuroscientist Grace Lindsay explains how mathematical models have allowed scientists to understand and describe many of the brain's processes. She introduces readers to the most important concepts in modern neuroscience, and highlights the tensions that arise when the abstract world of mathematical modelling collides with the messy details of biology. Each chapter of Models of the Mind focuses on mathematical tools that have been applied in a particular area of neuroscience, progressing from the simplest building block of the brain - the individual neuron - through to circuits of interacting neurons, whole brain areas and even the behaviours that brains command. Grace examines the history of the field, starting with experiments done on frog legs in the late eighteenth century and building to the large models of artificial neural networks that form the basis of modern artificial intelligence. Throughout, she reveals the value of using the elegant language of mathematics to describe the machinery of neuroscience.
Since the first edition of the Aging Auditory System volume (in 2009), there has been a tremendous amount of research in basic, translational, and clinical sciences related to age-related changes in auditory system structure and function. The new research has been driven by technical and conceptual advances in auditory neuroscience at multiple levels ranging from cells to cognition. The chapters in Aging and Hearing: Causes and Consequences span a broad range of topics and appeal to a relatively wide audience. Our goal in this volume is to put together state-of-the-art discussions about new developments in aging research that will appeal to a broad audience, serving as an important update on the current state of research on the aging auditory system. This update includes not only the recent research, but also consideration of how human and animal studies or translational and basic research are working in tandem to advance the field. This new edition is a natural complement to the previous SHAR volume on the aging auditory system edited by Gordon-Salant, Frisina, Popper, and Fay. The target audience for this volume will be graduate students, researchers, and academic faculty from a range of disciplines (psychology, hearing science/audiology, physiology, neuroscience, engineering). It also will appeal to clinical audiologists as well as to researchers working in the hearing device industry. Individuals who attend conferences sponsored by the Association for Research in Otolaryngology, Acoustical Society of America, Auditory Cognitive Neuroscience Society, American Auditory Society, Society for Neuroscience, American Speech, Language and Hearing Association, and the American Academy of Audiology (among others) are likely to find value in the volume.
A superb collection of time-tested, key techniques for investigating nervous system function, as well as the actions of drugs on the nervous system. The methods range from authoritative treatment of such well-established techniques as recording electrical activity in the brain, to practical coverage of state-of-the-art methods, including neural transplantation and antisense technology. The techniques described are particularly suitable for studying the mechanisms of action of psychotropic drugs and drugs of abuse, as well as the etiology and pharmacotherapy of neuropsychiatric diseases and neurodegenerative disorders. Several of the methods detailed are highly useful in screening potential drugs for the treatment of depression, anxiety disorders, schizophrenia, and Parkinson's and Alzheimer's disease.
Research on cannabis and sleep is emerging with promising results. This book offers current and comprehensive knowledge on cannabinoid research results in connection with sleep. The volume covers aspects of the hemp plant Cannabis sativa, the pharmacology of cannabinoids, neurobiology and pharmacology of sleep and wakefulness, and the benefits and side effects of cannabis on the central nervous system. It further discusses the putative therapeutical properties of cannabinoids and endocannabinoids and their potential for the treatment of sleep disorders such as insomnia, obstructive sleep apnea, REM sleep behavior disorder, and restless legs syndrome. The book is written by medical and scientific experts in this field and intended for researchers from a range of disciplines such as biomedicine, biology, neurosciences, clinical medicine, neurology, and pharmacology.
The principal objective of this book is to provide information needed to define human thermal behavior quantitatively. Human thermal physiology is defined using mathematical methods routinely employed by physicists and engineers, but seldom used by physiologists. Major sections of the book are devoted to blood flow, sweating, shivering, heat transfer within the body, and heat and mass transfer from skin and clothing to the environment. Simple algebraic models based on experimental data from a century of physiological investigation are developed for bodily processes. The book offers an invaluable source of information for physiologists and physical scientists interested in quantitative approaches to the fascinating field of human thermoregulation.
This work challenges the current reliance on "The Three R's" or Replacement, Reduction and Refinement which direct most animal research in the behavioral sciences. The author argues that these principles that were developed in the 1950's to guide the use of animals in research studies are outdated. He suggests that the notions of refinement and reduction are often ill-defined and can be useful only in cases where replacement is impossible.
This volume is focused on subjects related to cerebral ischemia and reperfusion injuries after acute stroke. All chapters are selected from the Sixth Elite Stroke meeting named Pangu Stroke Conference and written by members of world leading laboratories of stroke studies. The contents cover both clinical and bench studies, from basic components of cerebral arterial system to clinical reperfusion injury cases, from reperfusion caused programmed cell death and astrocyte activation to oxidative stress and nitric oxide after reperfusion, from extracellular matrix and inflammation to a role of diabetes after reperfusion, from small artery disorders to collateral circulation and blood pressure control after reperfusion. Wei-Jian Jiang, Chairman of New Era Stroke Care and Research Institute of PLA Rocket Force General Hospital, Beijing, China. Wengui Yu, Professor and Director of Comprehensive Stroke & Cerebrovascular Center, University of California, Irvine Yan Qu, Professor and Director of Neurosurgery at the Second Affiliated Hospital of Air Force Medical University, Xi'an, China. Zhongsong Shi, Professor of Neurosurgery at Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China. Ben-yan Luo, Professor and Chair of Neurology at the First Affiliated Hospital of Zhejiang University. John H. Zhang, Professor of Anesthesiology and Physiology at Loma Linda University School of Medicine, Loma Linda, CA, USA.
Despite numerous recent studies and exciting discoveries in the field, only limited treatments are available today for the victims of acute brain and spinal cord injuries. Animal Models of Acute Neurological Injuries, Second Edition, provides a standardized methodology manual designed to eliminate the inconsistent preparations and variability that often inhibit advances in this specialized research field. In the 10 years since publication of the first edition of this book, some animal models have become obsolete, some have stood the test of time, and newer models have emerged to enhance our knowledge of acute neurological injuries. The second edition continues to offer the research community tested approaches for this area of investigation. As with the first edition, top experts have developed and contributed these animal models. The book's focus remains hands-on, practical applications of the models, rather than a theoretical approach. Each chapter contains a proven procedure enhanced by clear figures, illustrations, or videos. This new edition presents its readily reproducible protocols with clarity and consistency to best aid neuroscientists and neurobiologists. As with the first edition, the second edition is comprehensive and cutting-edge. Animal Models of Acute Neurological Injuries, Second Edition, is an ideal guide for research professionals, at all stages of their careers, who wish to pursue this vital course of study with the proficiency and precision required by the field.
By far, the most widely used subjects in psychological and biological research today are rodents. Although rats and mice comprise the largest group of animals used in research, there are over 2,000 species and 27 families of rodents, living all over the world (except Antarctica) and thriving in many different habitat types. The vast environmental diversity that rodents face has led to numerous adaptations for communication, including vocalizing and hearing in both the sonic and ultrasonic ranges, effectively communicating in the open air and underground, and using vocalizations for coordinating sexual behavior, for mother-pup interactions, and for signaling an alarming situation to the group. Some rodent species have even developed foot drumming behaviors for communication. Comparative studies from around the globe, using both field and laboratory methodologies, reveal the vast differences in acoustic communication behavior across many rodent species. Some rodents are amenable to training and have been domesticated and bred purely for research purposes. Since the early 1900s, rats and mice have been indispensable to research programs around the world. Thus, much of what we know about hearing and vocalizations in rodents come from these two species tested in the laboratory. The sequencing of the mouse genome in 2002, followed by the rat genome in 2004, only increased the utility of these animals as research subjects since genetically engineered strains mimicking human diseases and disorders could be developed more easily. In the laboratory, rats and mice are used as models for human communication and hearing disorders and are involved in studies on hearing loss and prevention, hormones, and auditory plasticity, to name a few. We know that certain strains of mice retain hearing better than others throughout their lifespan, and about the genes involved in those differences. We know about the effects of noise, hormones, sex, aging, and circadian rhythms on hearing in mice and other rodents. We also know about normal hearing in many families of rodents, including the perception of simple and complex stimuli and the anatomy and physiology of hearing and sound localization. The importance of acoustic communication to these animals, as well as the significance of these mammals to biomedical research, are summarized in the chapters.
Vision and memory are two of the most intensively studied topics in psychology and neuroscience. The present book concerns the interaction between vision and memory: How do we remember what we see? And how does our memory for the visual world influence subsequent perception and action? topics in psychology and neuroscience, and the intersection etween them--visual memory--is emerging as a fertile ground for research. Certain memory systems appear to specialize in This book provides a state-of-the-art account of visual memory systems. Each chapter is written by an internationally renowned researcher, who has made seminal contributions to the topic. The chapters are comprehensive, providing both a broad overview of each topic and a summary of the latest research. They also present new perspectives that advance our theoretical understanding of visual memory and suggest directions for future research. After an introductory overview by the editors, chapters address visual sensory memory (iconic memory), visual short-term memory, and the relationship between visual memory and eye movements. Visual long-term memory is then reviewed from several different perspectives, including memory for natural scenes, the relationship between visual memory and object recognition, and associative learning. The final chapters discuss the neural mechanisms of visual memory and neuropsychological deficits in visual memory. This book is a comprehensive guide to visual memory research that will be a valuable resource for both students and professionals.
In the last decade, there has been a tremendous surge of research on the mechanisms of human action. This volume brings together this new knowledge in a single, concise source, covering most if not all of the basic questions regarding human action: what are the mechanisms by which action plans are acquired, mentally represented, activated, selected, and expressed? The chapters provide up-to-date summaries of the published research on this question, with an emphasis on underlying mechanisms. This 'bible' of action research brings together the current thinking of eminent researchers in the domains of motor control, behavioural and cognitive neuroscience, psycholinguistics, biology, as well as cognitive, developmental, social, and motivational psychology. It represents a determined multidisciplinary effort, spanning across various areas of science as well as national boundaries.
This book investigates the neuroscientific knowledge on addiction as an epistemic project.
The first of two volumes, this book examines Gandhi's contribution to an understanding of the scientific and evolutionary basis of the psychology of nonviolence, through the lens of contemporary researches on human cognition, empathy, morality and self-control. While, psychological science has focused on those participants that delivered electric shocks in Professor Stanley Milgram's famous experiments, these books begin from the premise that we have neglected to fully explore why the other participants walked away. Building on emergent research in the psychology of self control and wisdom, the authors illustrate what Gandhi's life and work offers to our understanding of these subjects who disobeyed and defied Milgram. The authors analyze Gandhi's actions and philosophy, as well as original interviews with his contemporaries, to elaborate a modern scientific psychology of nonviolence from the principles he enunciated and which were followed so successfully in his Satyagrahas. Gandhi, they argue, was a practical psychologist from whom we can derive a science of nonviolence which, as Volume 2 will illustrate, can be applied to almost every subfield of psychology, but particularly to those addressing the most urgent issues of the 21st century. This book is the result of four decades of collaborative work between the authors. It marks a unique contribution to studies of both Gandhi and the current trends in psychological research that will appeal in particular to scholars of social change, peace studies and peace psychology, and, serve as an exemplar in teaching one of modern psychology's hitherto neglected perspectives.
The book reviews the recent developments in brain imaging and their technological advancements to understand molecular mechanisms associated with neurological disorders and basic behaviors in humans and rodents at the structural, molecular, and functional levels. It discusses the usefulness of advanced optical microscopy techniques, including optical coherence tomography (OCT), miniscope, multiphoton fluorescence (2PF & 3PF), adaptive optics, harmonic generation, and Raman microscopy for understanding pathomechanism of brain disorders and pathological and physiological changes associated with neurodegenerative diseases. Also, the book presents conventional imaging modalities, including Magnetic Resonance Imaging (MRI), for delineating underlying mechanisms and precise early diagnosis of neurological disorders. This book is a useful resource for neuroscientists and researchers working in biomedical engineering and optics.
The biomedical sciences have recently undergone revolutionary change, due to the ability to digitize and store large data sets. In neuroscience, the data sources include measurements of neural activity measured using electrode arrays, EEG and MEG, brain imaging data from PET, fMRI and optical imaging methods. Analysis, visualization and management of these time series data sets is a growing field of research that has become increasingly important both for experimentalists and theorists interested in brain function. Written by investigators who have played an important role in developing the subject and in its pedagogical exposition, the current volume addresses the need for a textbook in this interdisciplinary area. The book is written for a broad spectrum of readers ranging from physical scientists, mathematicians and statisticians wishing to educate themselves about neuroscience, as well as biologists who would like to learn time series analysis methods in particular, and refresh their mathematical and statistical knowledge in general, through self-pedagogy. It could also be used as a supplement for a quantitative course in neurobiology or as a textbook for instruction on neural signal processing. The first part of the book contains a set of essays meant to provide conceptual background which are not technical and should be generally accessible. Salient features include the adoption of an active perspective of the nervous system, an emphasis on function, and a brief survey of different theoretical accounts in neuroscience. The second part is the longest in the book, and contains a refresher course in mathematics and statistics leading up to time series analysis techniques. The third part contains applications of data analysis techniques to the range of data sources indicated above (also available as part of the Chronux data analysis platform from http://chronux.org), and the fourth part contains special topics.
This major new publishing event provides the first up-to-date,
cutting-edge, comprehensive reference work combining volumes on all
major sensory modalities in one set in three decades. Under the
guidance of a distinguished team of international experts, 6
volumes collected 300 articles from all the top scientists laying
out our current knowledge on the anatomy, physiology, and molecular
biology of sensory organs. Topics covered include the perception,
psychophysics, and higher order processing of sensory information,
as well as disorders and new diagnostic and treatment methods.
Sex is a fundamentally important biological variable. Recent years
have seen significant progress in the integration of sex in many
aspects of basic and clinical research, including analyses of sex
differences in brain function. Significant advances in the
technology available for studying the endocrine and nervous systems
are now coupled with a more sophisticated awareness of the
interconnections of these two communication systems of the body. A
thorough understanding of the current knowledge, conceptual
approaches, methodological capabilities, and challenges is a
prerequisite to continued progress in research and therapeutics in
this interdisciplinary area.
Existentialisms arise when the foundations of being, such as meaning, morals, and purpose come under assault. In the first-wave of existentialism, writings typified by Kierkegaard, Dostoevsky, and Nietzsche concerned the increasingly apparent inability of religion, and religious tradition, to support a foundation of being. Second-wave existentialism, personified philosophically by Sartre, Camus, and de Beauvoir, developed in response to similar realizations about the overly optimistic Enlightenment vision of reason and the common good. The third-wave of existentialism, a new existentialism, developed in response to advances in the neurosciences that threaten the last vestiges of an immaterial soul or self. Given the increasing explanatory and therapeutic power of neuroscience, the mind no longer stands apart from the world to serve as a foundation of meaning. This produces foundational anxiety. In Neuroexistentialism, a group of contributors that includes some of the world's leading philosophers, neuroscientists, cognitive scientists, and legal scholars, explores the anxiety caused by third-wave existentialism and possible responses to it. Together, these essays tackle our neuroexistentialist predicament, and explore what the mind sciences can tell us about morality, love, emotion, autonomy, consciousness, selfhood, free will, moral responsibility, law, the nature of criminal punishment, meaning in life, and purpose.
This text is an updated and expanded technical summary of all the electrodiagnostic techniques available in the clinical neurophysiology laboratory. It includes descriptions of the nerve to be studied, the stimulation procedure, technical comments and results of previous studies. The book also includes nearly 40 new drawings and new sections on evoked responses, motor unit potential studies and other tests. This comprehensive reference should be of use to every laboratory and physician who performs electrodiagnosis or refers patients. This book is intended for neurologists, rehabilitation medicine specialists, neurophysiologists.
Data from neuropsychological and animal research suggest that the hippocampus plays a pivotal role in two relatively different areas: active navigation, as well as episodic learning and memory. Recent studies have attempted to bridge these disparate accounts of hippocampal function by emphasizing the role that hippocampal place cells may play in processing the spatial contextual information that defines situations in which learned behaviors occur. A number of established laboratories are currently offering complementary interpretations of place fields, and this book will present the first common platform for them. Bringing together research from behavioral, genetic, physiological, computational, and neural-systems perspectives will provide a thorough understanding of the extent to which studying place-field properties has informed our understanding of the neural mechanisms of hippocampus-dependent memory. Hippocampal Place Fields: Relevance to Learning and Memory will serve as a valuable reference for everyone interested in hippocampal function.
Synergy dicusses a general problem in biology: The lack of an
adequate language for formulating biologically specific problems.
Written for an inquisitive reader who is not necessarily a
professional in the area of movement studies, this book describes
the recent progress in the control and coordination of human
movement. |
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