Table 5. Difference of the feature values between the drowsy and alert states (region C, 5 sec window).
Feature | Region C (drowsy – alert) |
|||||||
---|---|---|---|---|---|---|---|---|
Ch. 21 | Ch. 22 | Ch. 23 | Ch. 24 | Ch. 25 | Ch. 26 | Ch. 27 | Ch. 28 | |
M | −1.2E-03 | −1.3E-03 | −1.6E-03 | −1.9E-03 | −3.7E-04 | −1.3E-03 | −3.2E-04 | −1.6E-03 |
P | −1.2E-03 | −1.3E-03 | −1.8E-03 | −2.0E-03 | −3.8E-04 | −1.3E-03 | −3.2E-04 | −1.6E-03 |
SoP | 0.0E + 00 | 9.5E-04 | 0.0E + 00 | 2.6E-04 | 0.0E + 00 | 0.0E + 00 | 0.0E + 00 | 0.0E + 00 |
NoP | 0 | 8 | 0 | 13 | 0 | 0 | 0 | 0 |
M* | −6.2E-04 | −9.5E-04 | −7.2E-04 | −6.6E-04 | −3.6E-04 | −6.7E-04 | −1.9E-04 | −7.4E-04 |
skew | 8.1E-02 | 3.9E-03 | −3.1E-03 | −5.3E-02 | 6.4E-02 | 3.0E-02 | 7.0E-02 | 6.2E-02 |
kurt | −5.5E-02 | −6.8E-02 | 5.8E-02 | −1.9E-02 | −5.4E-03 | −2.5E-04 | −9.4E-02 | 1.2E-02 |
SS | −1.1E-15 | −2.7E-16 | −7.4E-17 | 6.8E-19 | 3.0E-20 | 2.1E-20 | 1.0E-21 | 1.0E-21 |
f | 0.0E + 00 | −5.3E-05 | 0.0E + 00 | −6.1E-04 | 0.0E + 00 | 0.0E + 00 | 0.0E + 00 | 0.0E + 00 |
Note: * indicates the mean value computed from ∆HbR.