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The EEG signals between these regions will not be independent. The electrical activity that is being measured at the scalp, is the result of electrical flow inside the brain. This flow does not go in just one direction. It 'smears out' a little bit to surrounding areas, since the entire scalp/body is conductive. Another reason that the activity measured at ...


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I don't exactly what it is you want, but if you are looking for other analyzing techniques, you should try Independent Component Analysis. I have heard (but I do not have references) that ICA is better than PCA analyses. A very neat (and free) Matlab toolbox that has this function is FieldTrip (http://www.fieldtriptoolbox.org/). It is a nicely documented ...



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