EEG Analysis Applied to Sleep

Summary The electroencephalogram (EEG) is a complex signal and an important brain state indicator (e.g. waking, sleep, seizure). Modern brain research is intimately linked to the feasibility to record the EEG and to its quantitative analysis. EEG spectral analysis (decomposing a signal into its constituent frequency components) is an important method to investigate brain activity. Basic principals of signal analysis (filtering, sampling, and spectral analysis) are reviewed and illustrated with applications to the sleep EEG. Epileptologie 2009; 26: 28 – 33

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