Table 2.

Features extracted from the EEG

Feature Type	Feature
Frequency Domain	Wavelet energy, total power, peak frequency, spectral edge frequency (80%,90%,95%), power in frequency bands of width 2Hz from 0 to 12Hz with 50% overlap, power in the normalised frequency bands
Time domain	Curve length, number of maxima and minima, root mean squared amplitude, Hjorth parameters, zero crossings, zero crossings of the 1st and 2nd derivatives, autoregressive modelling error (model order 1-9), skewness, kurtosis, nonlinear energy, variance of the 1st and 2nd derivatives
Information theory	Shannon entropy, spectral entropy, Fisher information, singular value decomposition entropy