Table 2. Eight features in region A (before normalization): 0~10 sec window.

	Channel 1		Channel 2		Channel 3		Channel 4
Feature	Drowsy	Alert	Drowsy	Alert	Drowsy	Alert	Drowsy	Alert
M	2.2E-05	−6.0E-06	4.5E-05	−1.8E-04	5.3E-04	−6.0E-04	2.7E-04	−5.4E-04
P	2.8E-04	2.4E-04	1.5E-04	−1.0E-04	6.5E-04	−4.5E-04	3.8E-04	−4.2E-04
SoP	3.5E-05	1.2E-05	7.2E-05	0.0E + 00	3.8E-04	−2.6E-04	8.5E-05	0.0E + 00
NoP	5	1	15	0	83	37	11	0
M*	−3.4E-06	−9.9E-07	−9.3E-05	2.0E-04	1.4E-04	−9.2E-05	−4.3E-05	6.9E-05
skew	−8.0E-02	2.4E-02	1.9E-02	5.2E-03	5.5E-02	1.2E-01	−2.8E-02	5.0E-02
kurt	2.0E + 00	2.1E + 00	2.1E + 00	2.3E + 00	2.2E + 00	2.2E + 00	2.2E + 00	2.0E + 00
SS	−8.2E-07	−7.1E-07	4.6E-08	9.7E-09	1.9E-09	1.5E-08	−9.2E-10	−7.6E-10
f	2.6E-03	1.6E-03	7.9E-03	0.0E + 00	4.3E-02	5.8E-02	5.8E-03	0.0E + 00
	Channel 5		Channel 6		Channel 7		Channel 8
Feat.	Drowsy	Alert	Drowsy	Alert	Drowsy	Alert	Drowsy	Alert
M	4.3E-04	−5.0E-04	7.9E-05	4.4E-05	1.4E-03	−1.9E-03	3.1E-04	−5.4E-04
P	5.4E-04	−3.7E-04	1.7E-05	1.3E-04	1.6E-03	−1.8E-03	−2.1E-04	7.1E-04
SoP	3.6E-04	−2.8E-04	0.0E + 00	0.0E + 00	7.2E-04	−1.1E-03	0.0E + 00	0.0E + 00
NoP	98	25	0	0	60	32	0	0
M*	4.5E-05	−2.8E-05	−7.7E-05	1.4E-04	6.2E-05	−1.2E-04	−1.4E-04	2.3E-04
skew	5.4E-02	1.2E-01	−1.7E-01	−1.1E-01	5.4E-03	−2.0E-02	2.9E-02	−3.6E-02
kurt	2.3E + 00	2.3E + 00	2.3E + 00	2.1E + 00	2.2E + 00	2.1E + 00	2.3E + 00	2.2E + 00
SS	−5.1E-11	−3.3E-10	1.7E-11	1.2E-11	−4.3E-13	6.6E-13	−7.8E-14	−1.5E-13
f	5.2E-02	7.0E-02	0.0E + 00	0.0E + 00	3.2E-02	5.6E-02	0.0E + 00	0.0E + 00

Note: * indicates the mean value computed from ∆HbR.