Table 1 Difference of risk field between low-risk and high-risk episodes.

From: Driving risk cognition of passengers in highly automated driving based on the prefrontal cortex activity via fNIRS

Event

\(M_L\)

\(M_H\)

\(D_{LH}\)

p

t

Lead vehicle autonomous emergency braking in a short distance scenario

0.010

0.128

0.118

\(<0.01\)

20

Lead vehicle cut-in from left lane in a short distance scenario

0.013

0.124

0.111

\(<0.01\)

15

Lead vehicle cut-in from right lane in a short distance scenario

0.016

0.162

0.146

\(<0.01\)

10

Pedestrian crossing road from right scenario

0.022

0.116

0.094

\(<0.01\)

6

  1. (1) \(M_L\) indicates the mean values of the risk field in the low-risk episode; (2) \(M_H\) indicates the mean values of the risk field in the high-risk episode; (3) \(D_{LH}\) indicates the difference of risk field between low-risk and high-risk episodes; (4) p indicates the probability of T-test; (5) t indicates the time of episode.
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