Table A2.

Features extracted from the frequency domain.

Information about	Features Extraction
Whole spectrum	Power—Spectral Edge Frequency (80%, 90%,
	95%)—Power Spectrum Moments (orders 0, 1, 2)—
	Power Spectrum Centre Frequency—Spectral Root Mean
	Square— Index of Spectral Deformation—Signal-to-noise ratio—
	Modified Median Frequency—Modified Mean Frequency
EEG frequency bands	Ratio Spectrum Area—Non-normalized Power—
($\delta$, $\theta$, $\alpha$, $\beta$, $\gamma$)	Log Power—Relative Power—
	Wavelet energy (Db8 wavelet coefficients)
Changes in several	10 Cepstral Coefficients—5 Frequency-filtered band
spectral bands	energies—5 Relative Spectral Differences