Аннотация:This monograph includes eight fundamental studies on EEG analysis: 1) disadvantages and errors of coherent analysis; 2) errors in spectral estimates of EEG amplitude compared to direct amplitude measurements; 3) the new method for analyzing EEG synchronity by envelopes correlation which is very effective for differentiating of various diseases and functional states; 4) differentiation of norm and schizophrenia by analysis of EEG correlation synchrony; 5) the changes in EEG synchrony at depressive deviations; 6) the analysis of EEG synchronism and amplitude relationship in all-night sleep; 7) the solution the problem of choosing the optimal reference electrode for EEG recording; 8) the free available software tools for EEG complex group analysis. The book contains various materials suitable for students, researchers and academicians.