Table 2.

Features extracted by each signal.

Signals	Extracted Features
Pupil	mean of area
EDA	Accumulated data, average as a function of time and spectral power
Phasic	Average, absolute value of the maximum, number of peaks
ECG	Mean, median, variance of ECGMAD (average absolute deviation)
PPG(HR)	Mean, standard deviation, RMS of HR
T	Mean, median
EEG	Power and phase of the analytical signal obtained with the Transf. of Hilbert