Statistical characterization of the EEG: the use of the power spectrum as a measure of ergodicity.
In order to interpret statistical summaries of treatment-related changes in EEG power spectra, the internal consistency of the set of data from each condition must first be known. A technique for the assessment of such across-record homogeneity (ergodicity) is derived from the defining characteristics of the power spectrum. A simplified graphic approximation is also detailed. Computer simulations and practical validation confirm it as a useful means of evaluating the ergodicity of sets of EEG data.
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Tenke
D004569:Electroencephalography / Q000379:methods*; D013223:Statistics as Topic