Towards Driver's State Recognition on Real Driving Conditions

Table 7

The mean ± std of driving performance measures for normal, low and high fatigue states. The fourth and sixth columns are the 𝑃 values using the hypothesis that performance measures are significantly better (i.e., lower mean and std of reaction times) in normal state, compared to low and high fatigue states, respectively.

Reaction time	Normal (𝑁=22)	Low fatigue (𝑁=14)	𝑃 value	High fatigue (𝑁=12)	𝑃 value
Primary task mean RT	0.90 ± 0.15	1.03 ± 0.18	0.0353	1.19 ± 0.24	0.0002
Secondary task mean RT	0.52 ± 0.05	0.72 ± 0.23	0.0005	0.79 ± 0.10	0.0000
Primary task std RT	0.12 ± 0.07	0.15 ± 0.11	0.3047	0.32 ± 0.17	0.0000
Secondary task std RT	0.12 ± 0.06	0.24 ± 0.16	0.0019	0.25 ± 0.07	0.0000
Std of position	0.62 ± 0.11	0.70 ± 0.14	0.0575	0.78 ± 0.10	0.0003