Electric Fields of the Brain: The Neurophysics of EEGOxford University Press, 2006 - 611 ページ Electroencephalography (EEG) is practiced by neurologists, cognitive neuroscientists, and others interested in functional brain imaging. Whether for clinical or experimental purposes, all studies share a common purpose-to relate scalp potentials to the underlying neurophysiology. Electrical potentials on the scalp exhibit spatial and temporal patterns that depend on the nature and location of the sources and the way that currents and fields spread through tissue. Because these dynamic patterns are correlated with behavior and cognition, EEG provides a "window on the mind," correlating physiology and psychology. This classic and widely acclaimed text, originally published in 1981, filled the large gap between EEG and the physical sciences. It has now been brought completely up to date and will again serve as an invaluable resource for understanding the principles of electric fields in living tissue and for using hard science to study human consciousness and cognition. No comparable volume exists for it is no easy task to explain the problems of EEG in clear language, with mathematics presented mainly in appendices. Among the many topics covered by the Second Edition are micro and meso (intermediate scale) synaptic sources, electrode placement, choice of reference, volume conduction, power and coherence measures, projection of scalp potentials to dura surface, dynamic signatures of conscious experience, neural networks immersed in global fields of synaptic action, and physiological bases for brain source dynamics. The Second Edition is an invaluable resource for neurologists, neuroscientists (especially cognitive neuroscientists), biomedical engineers, and their students and trainees. It will also appeal to physicists, mathematicians, computer scientists, psychiatrists, and industrial engineers interested in EEG. |
目次
1 The PhysicsEEG Interface | 3 |
2 Fallacies in EEG | 56 |
3 An Overview of Electromagnetic Fields | 99 |
4 Electric Fields and Currents in Biological Tissue | 147 |
5 Current Sources in a Homogeneous and Isotropic Medium | 203 |
6 Current Sources in Inhomogeneous and Isotropic Media | 244 |
7 Recording Strategies Reference Issues and Dipole Localization | 275 |
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4-sphere model action potential algorithm alpha band alpha rhythm amplitude approximation average axon brain Clinical Neurophysiology coefficients cognitive coherence estimates conductor correlation cortex cortical columns cortical surface corticocortical current sources dielectric dipole layer dipole source discussed in chapter distance dura imaging EEG data effects electric field Electroencephalography electrophysiology epochs equation evoked potentials example excitatory experimental fiber Figure Fourier function global head model homogeneous inhomogeneous input linear macroscopic magnetic fields magnitude measured medium membrane mesosource microsources neocortex neocortical dynamics networks neurons nonlinear Nunez PL obtained oscillations parameters peak phase physical plot potential due radial dipole recorded reference electrode resistivity scales scalp potential scalp surface shown in fig signal simulations skull solutions source distribution source region spatial filtering spatial frequencies spectra sphere spherical harmonic Srinivasan SSVEP stimulus surface Laplacian surface potential synaptic synaptic action synchronization tangential dipole theory transmembrane potential vector velocity volume conduction waves zero