EEG and Brain Connectivity: A Tutorial - Bio-Medical Instruments, Inc.

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Fig. 28 – Example of coherence of coherence for all 171 combinations of 19 electrodes. Analyses were produced using the NeuroGuide Lexicor demo from the download at www.appliedneuroscience.com 35 – Phase Difference of Coherence Defined as the average Phase difference of the time series of instantaneous coherence between any pair of electrodes with respect to a common electrode. For example, the two time series of instantaneous coherence between Cz-P3 <strong>and</strong> Cz-P4 are the input to the phase analysis in which the average phase difference between the two time series of coherence
exhibits statistically significant phase stability over time (i.e., significant coherence values). An example of 19 leads = 171 combinations is in Figure 29. Fig. 29 – Example of phase difference of the time series of instantaneous coherence for all 171 combinations of 19 electrodes. Analyses were produced using the NeuroGuide Lexicor demo from the download at www.appliedneuroscience.com 36 – Coherence of Phase Differences Defined as the average Coherence of the time series of instantaneous phase differences between any pair of electrodes with respect to a common
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(unpublished manuscript - Version 1
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29- Definition of the Cross Channel
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possible and this is why the cospec
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is because there are relatively lon
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Fig. 1 - Illustration of volume con
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Fig. 3- Example of cospectrum (in-p
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coefficient is a valid and importan
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Eq. 1- r = ∑ N ∑ N ( X ( X −
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Fig. 5 - Comparisons between the Br
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to a Pearson product-moment correla
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constitute the basis for all spectr
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The frequency analysis of a time se
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That is, the cross-spectrum power i
Page 27 and 28: Demo). 11- Third Compute Coherence
Page 29 and 30: 100 90 80 70 60 50 40 30 20 10 0 0
Page 31 and 32: frame” of consciousness (Thatcher
Page 33 and 34: Fig. 9 - Various degrees and types
Page 35 and 36: Fig. 10 - Illustrations of phase re
Page 37 and 38: when the 1 st derivative of the pha
Page 39 and 40: Fig. 13 shows an example of two 10
Page 41 and 42: Figure 15 - The x-axis are differen
Page 43 and 44: Fig - 16. Top is coherence (y-axis)
Page 45 and 46: Coherence inflation is defined as a
Page 47 and 48: time over which the average is comp
Page 49 and 50: Nonetheless, “instantaneous” ph
Page 51 and 52: Example of conventional digital EEG
Page 53 and 54: score; 2- Simplification by providi
Page 55 and 56: the brain. The integration of QEEG
Page 57 and 58: Multiple frequencies and multiple m
Page 59 and 60: Example of one of the progress char
Page 61 and 62: advantage of imaging of non-cortica
Page 63 and 64: where n is the number of observatio
Page 65 and 66: Fig. 22 - Illustration of phase str
Page 67 and 68: measure of the area under the curve
Page 69 and 70: Fig. 24 - Top is filtered EEG at 25
Page 71 and 72: Fig. 26 - Top is the spontaneous EE
Page 73 and 74: 27- How to compute Auto-channel Cro
Page 75 and 76: 30- Cross-Channel Cross-Frequency C
Page 77: degrees or radians and is “normal
Page 81 and 82: www.appliedneuroscience.com 37 - Co
Page 83 and 84: elationships as defined by the phas
Page 85 and 86: Fig. 33 - Example of phase differen
Page 87 and 88: Fig. 35 - Example of 4 different fr
Page 89 and 90: Fig. 37 - Example of a measure of c
Page 91 and 92: Fig. 39- Illustration of how cross-
Page 93 and 94: Fig. 41- Example of cross-frequency
Page 95 and 96: Gray, C.M., Konig, P., Engle, A.K.
Page 97 and 98: localization and functional connect
Page 99 and 100: 35 - 48, 2007. Thatcher, R.W., Bive
Page 101 and 102: Cannon, R., Lubar, J., Sokhadze, E.
Page 103 and 104: Lubar, J., Congedo, M. and Askew, J
Page 105 and 106: Yoo, S. S. et al. Increasing cortic
Page 107 and 108: F and likewise, F iω0t iϕ t [ y e
Page 109 and 110: 6- Phase Delay or phase difference
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