Brain research to battle driver fatigue
Brain research to battle driver fatigue
Ford is pioneering new brain research that could ultimately lead to a faster and more accurate way to detect when the driver is starting to switch off behind the wheel.
Driver fatigue has been cited as a contributing factor in up to 25% of fatal and serious road incidents. A survey shows that 40% of drivers in Europe do not follow the recommended practice of taking a break every two hours on long journeys.
Therefore, alerting drivers who are tired or distracted could help keep drivers, passengers and other road users safe.
“The brain processes huge amounts of information when we are driving, but that may change as driver assistance technologies do some of the driving for us. Drivers also get tired and their minds can wander. Identifying more quickly when this happens could be of critical importance,” says Stefan Wolter, a research engineer at the Research and Advanced Engineering department of Ford Motor Company.
Working with neuroscientists, Ford is hoping that by identifying the brain responses that reveal lapses in concentration, it may be possible to match the scans to their physical manifestations – such as changes in heart rate or breathing. Should a loss in concentration become apparent, for example if a change in heartbeat variability were detected via wearable technology, the vehicle could then alert the driver.
Ford is conducting this research on mapping brain patterns to driver’s reactions with Uniklinik RWTH Aachen, in Germany. The testing involves participants completing a driving simulation while their brain activity is scanned by an MRI machine. A specially positioned mirror enables the participants to see the simulation on the screen.
The scenario, designed using gaming technology, involves a three-lane highway at night where a vehicle in the middle lane brakes suddenly and the participant has to take over and move the car to the left or right, using a handheld device. The participants are also prompted by engine sounds to indicate which lane it is safe to move to.
The MRI machine scans the brain before and during these actions, while the researchers measure how quickly the participant reacts and whether they make the right decision. They also monitor changes to heart rate, breathing rate and other physiological measures.
“We believe that by capturing this data we could one day be able to generate unique physiological driver fingerprints so that drivers of the vehicles of the future can be prepared to react and to intervene immediately if it is required,” says Professor Klaus Mathiak, head of Psychoneurobiology and lead consultant for Psychosomatic Medicine, Uniklinik RWTH Aachen.
For more than a decade, a coffee cup symbol displayed in the dashboard cluster has highlighted to drivers that they may be showing signs of fatigue and should take a break. Now, this unique research project could take driver monitoring an important step further and help ensure a smooth transition to driving vehicles with advanced driver assistance features.
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