Chunk #5 — II. Methods and Material

Source

On the recording reference contribution to EEG correlation, phase synchrony, and coherence.

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yes

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Given two time series x(t) and y(t), the correlation of x(t) and y(t) is defined as (1)Cxy=E[xy]E[x2]E[y2] where x and y are assumed to have zero mean and E[·] is the expected value of one random variable.