
Contents
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Synchronization: A Physical Concept Synchronization: A Physical Concept
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Oscillators and Phase Oscillators and Phase
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Oscillatory Synchronization Oscillatory Synchronization
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Synchronization of Relaxation Oscillators Synchronization of Relaxation Oscillators
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Fourier Analysis: Spectral Power and Phase Fourier Analysis: Spectral Power and Phase
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Synchronization of Action Potentials and Local Field Potentials Synchronization of Action Potentials and Local Field Potentials
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Functional Anatomy, Local Synchronization, EEG Potentials, and MEG Fields Functional Anatomy, Local Synchronization, EEG Potentials, and MEG Fields
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Long-Distance Synchronization: Communication and Integration Long-Distance Synchronization: Communication and Integration
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Phase and Amplitude via Wavelet Analysis Phase and Amplitude via Wavelet Analysis
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Phase and Amplitude via Analytic Signal and Hilbert Transform Phase and Amplitude via Analytic Signal and Hilbert Transform
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Phase-Locking Value and Other Measures of Synchronization Phase-Locking Value and Other Measures of Synchronization
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Phase-Locking Value Phase-Locking Value
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Information Measures Information Measures
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Coherence Coherence
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Synchronization Likelihood Synchronization Likelihood
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Spurious Synchronization Spurious Synchronization
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Synchronization between Neural Sources Synchronization between Neural Sources
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Postscript: Granger Causality and Other Exotica Postscript: Granger Causality and Other Exotica
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Acknowledgments Acknowledgments
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References References
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8 Procedures and Strategies for Optimizing the Signal-to-Noise Ratio in Event-Related Potential Data
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7 Synchronization Analysis in EEG and MEG
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Published:July 2009
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Abstract
This chapter describes the phase synchrony analysis in electoencephalography or magnetoencephalography data. It defines synchronization generally to be the adjustment of rhythms of self-sustained oscillating systems caused by their interaction. The chapter deals with the most-used techniques for assessing synchronization among brain regions which are distant from one another, and suggests that long-distance synchronization of human brain rhythms serves to functionally integrate distant neural populations into large-scale networks. The analysis of phase locking specializes functional connectivity to a particular form which is independent of oscillatory amplitude, namely that of oscillatory synchronization.
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