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. Author manuscript; available in PMC: 2007 Oct 15.
Published in final edited form as: Clin Neurophysiol. 2007 Mar 23;118(5):1134–1143. doi: 10.1016/j.clinph.2006.12.019

Figure 2.

Figure 2

Block diagram of basic EEG processing for bandpass energy-based HFO detection. The EEG signal, x(t), is analyzed first by preprocessing, then by detection, to produce an indicator, y(t), of HFO events. The short-time energy, E* (t;T), may be replaced by similar measures, e.g., line length. (Gray) Equalization may be applied during preprocessing to compensate for EEG spectral rolloff.