Susceptibility to audio signals during autonomous driving

Area of Science:

• Neuroscience
• Human-Computer Interaction
• Automotive Safety

Background:

• Human drivers' susceptibility to auditory signals is reduced when actively driving compared to being stationary.
• Understanding susceptibility during autonomous driving is crucial for effective human-machine communication, especially during control transitions.

Purpose of the Study:

• To investigate human susceptibility to auditory signals under stationary, self-driving, and autonomous driving conditions.
• To determine the impact of driving context on the frontal P3 (fP3) electroencephalography event-related potential (EEG ERP) response.

Main Methods:

• Utilized a three-stimulus auditory oddball paradigm to measure susceptibility.
• Recorded electroencephalography (EEG) to analyze the frontal P3 (fP3) component of the event-related potential (ERP).
• Compared fP3 responses across stationary, autonomous driving, and manual driving conditions, including passive and active response requirements.

Main Results:

• The fP3 component was reduced in autonomous driving conditions compared to stationary conditions.
• fP3 reduction was less pronounced in autonomous driving than in manual driving.
• The fP3 component was further reduced in a passive oddball task (no required response) compared to an active task.

Conclusions:

• Human susceptibility to auditory signals is diminished during autonomous driving.
• The reduced susceptibility, indicated by a lower fP3 response, may impede timely reactions to critical auditory alerts.
• Optimizing auditory alert design and delivery is essential for ensuring safety in autonomous vehicle scenarios.