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Pt 101530

Pt 101531

EEG potentials predict upcoming emergency braking during simulated driving

Emergency braking assistance has the potential to prevent a large number of car crashes. State-of-the-art systems operate in two stages. Basic safety measures are adopted once external sensors indicate a potential upcoming crash. If further activity at the brake pedal is detected, the system automatically performs emergency braking. Here, we present the results of a driving simulator study indicating that the driver’s intention to perform emergency braking can be detected based on muscle activation and cerebral activity prior to the behavioural response. Identical levels of predictive accuracy were attained using electroencephalography (EEG), which worked more quickly than electromyography (EMG), and using EMG, which worked more quickly than pedal dynamics.

A simulated assistance system using EEG and EMG was found to detect emergency brakings 130 ms earlier than a system relying only on pedal responses. At 100 km h−1 driving speed, this amounts to reducing the braking distance by 3.66 m. This result motivates a neuroergonomic approach to driving assistance. Our EEG analysis yielded a characteristic event-related potential signature that comprised components related to the sensory registration of a critical traffic situation, mental evaluation of the sensory percept and motor preparation. While all these components should occur often during normal driving, we conjecture that it is their characteristic spatio-temporal superposition in emergency braking situations that leads to the considerable prediction performance we observed.

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Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.


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Comments

  1. thecolor says:

    I hope it’s smart enough to manage the false positives of those who cannot drive and freak out at every little movement.  They’d be breaking and causing accidents left and right!  :(

    1. Anonymous says:

      @thecolor:disqus texting and updating facebook status while driving, just got more dangerous!

  2. thecolor says:

    I hope it’s smart enough to manage the false positives of those who cannot drive and freak out at every little movement.  They’d be breaking and causing accidents left and right!  :(

  3. Why using the old scool TORCS when there is the much improved fork Speed Dreams which is activily developed: http://www.speed-dreams.org

  4. honda cars says:

    wow this is so nice that now Your Car Is An EEG and i am so happy that you share this information to all….