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Klappentext Neural network research often builds on the fiction that neurons are simple linear threshold units, completely neglecting the highly dynamic and complex nature of synapses, dendrites, and voltage-dependent ionic currents. Biophysics of Computation: Information Processing in Single Neuronschallenges this notion, using richly detailed experimental and theoretical findings from cellular biophysics to explain the repertoire of computational functions available to single neurons. The author shows how individual nerve cells can multiply, integrate, or delay synaptic inputs and howinformation can be encoded in the voltage across the membrane, in the intracellular calcium concentration, or in the timing of individual spikes. Key topics covered include the linear cable equation; cable theory as applied to passive dendritic trees and dendritic spines; chemical and electrical synapses and how to treat them from a computational point of view; nonlinear interactions of synaptic input in passive and active dendritictrees; the Hodgkin-Huxley model of action potential generation and propagation; phase space analysis; linking stochastic ionic channels to membrane-dependent currents; calcium- and potassium-currents and their role in information processing; the role of diffusion, buffering and binding of calcium, and other messenger systems in information processing and storage; short- and long-term models of synaptic plasticity; simplified models of single cells; stochastic aspects of neuronal firing; the nature of the neuronal code; and unconventional models of sub-cellular computation. Biophysics of Computation: Information Processing in Single Neurons serves as an ideal textfor advanced undergraduate and graduate courses in cellular biophysics, computational neuroscience, and neural networks, and will appeal to students and professionals in neuroscience, electrical andcomputer engineering, and physics. Zusammenfassung Using experimental and theoretical findings from cellular biophysics, this book explains the computational functions of single neurons. The topics include the linear cable equation; cable theory as applied to passive dendritic trees and dendritic spines; and chemical and electrical synapses and how to treat them from a computational point of view. Inhaltsverzeichnis 1: The membrane equation 2: Linear cable theory 3: Passive dendritic trees 4: Synaptic input 5: Synaptic interactions in a passive dendritic tree 6: The Hodgkin-Huxley model of action-potential generation 7: Phase space analysis of neuronal excitability 8: Ionic channels 9: Beyond Hodgkin and Huxley: calcium, and calcium-dependent potassium currents 10: Linearizing voltage-dependent currents 11: Diffusion, buffering, and binding 12: Dendritic spines 13: Synaptic plasticity 14: Simplified models of individual neurons 15: Stochastic models of single cells 16: Bursting cells 17: Input resistance, time constants, and spike initiation 18: Synaptic input to a passive tree 19: Voltage-dependent events in the dendritic tree 20: Unconventional coupling 21: Computing with neurons - a summary ...
