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This book first reviews the case that brain oscillations not only are important for cognition, as long suspected, but also play a part in the expression of signs and symptoms of neuropsychiatric disorders. The cellular mechanisms of many of the clinically relevant oscillations have been studied by the authors and their colleagues, using in vitro slice methods as well as detailed computer simulations. A surprising insight is that gap junctions between principal neurons play an absolutely critical role in so many types of oscillation in neuronal populations; oscillations are not just the result of properties of individual neurons and their synaptic connections. Furthermore, the way in which gap junctions produce oscillations in the cortex is novel, involving as it does global properties of networks, rather than just the time constants of membrane currents. This insight has implications for therapeutics as well as for our understanding of normal brain functions.
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In Fast Oscillations in Cortical Circuits, the authors use a combination of electrophysiological and computer modeling techniques to analyze how large networks of neurons can produce both epileptic seizures and functionally relevant synchronized oscillations.
The questions of how a large population of neurons in the brain functions, how synchronized firing of neurons is achieved, and what factors regulate how many and which neurons fire under different conditions form the central theme of this book. Important neurological techniques for the physiological reconstruction of a large biological neural network are presented.
The standard-setting clinical electroencephalography textbook has been rewritten for the next decade of EEG technicians and resident and practicing neurologists. This Third Edition reflects the transition of the field to an all-digital environment, with fundamental changes in data recording, analysis, and interpretation. Drs. Ebersole and Pedley are outstanding educators with extensive experience in editing two of the leading journals--Journal of Clinical Neurophysiology and Epilepsia, respectively. In this volume, Ebersole and Pedley cover the full range of applications of EEG and evoked potentials in contemporary clinical practice. The book explains the most advanced instrumentation and techniques and their use in evaluating various disorders. More than 600 illustrations depict both normal and abnormal findings.
Following the successful format of the first volume on long- term potentiation -- a leading candidate for the neuronal basis of learning and memory -- Volume 2 brings together the most recent data and hypotheses by top neuroscientists regarding the mechanisms of this phenomenon and of long-term depression (LTD). The book is divided into several sections covering different aspects of the field ranging from molecular mechanisms of plasticity to computational neurobiology. It revisits some of the major points covered in Volume 1, updating them in this fast-moving field. It also introduces several new issues that have arisen since then. Of the many possible new topics that could have been added, the editors have focused on retrograde messengers and the mechanisms and functions of LTP and LTD because they are the subject of much interest, research, and controversy. The section on retrograde messengers deals primarily with nitric oxide.
An examination of how widely distributed and specialized activities of the brain are flexibly and effectively coordinated. A fundamental shift is occurring in neuroscience and related disciplines. In the past, researchers focused on functional specialization of the brain, discovering complex processing strategies based on convergence and divergence in slowly adapting anatomical architectures. Yet for the brain to cope with ever-changing and unpredictable circumstances, it needs strategies with richer interactive short-term dynamics. Recent research has revealed ways in which the brain effectively coordinates widely distributed and specialized activities to meet the needs of the moment. This ...