Figure 3
Mean reaction time and lapses of attention following the manually controlled and self-driving conditions. Left panel: Change in mean reaction time following the self-driving compared to the manual-driving condition by individual participant. Higher values indicate slower reaction times. The red dashed line indicates reaction time slowing by 15 ms, which is the equivalent increase in reaction time observed in those with a blood alcohol concentration of 0.5 g/L relative to placebo. Right panel: Lapses (reaction time [RT] > 500 ms) following the manually controlled and self-driving conditions. Higher values indicate more lapses in attention. For each box, the solid white line indicates the median, the dashed white line indicates the mean, and the bottom and top boundaries of the box indicate the 25th and 75th percentiles, respectively. The bottom and top whiskers indicate the 10th and 90th percentiles, respectively (Study 1 n = 9; Study 2 n = 19; Study 3 n = 19). * = p < .05.
