![]() ![]() ![]() According to the US National Highway Traffic Safety Administration, in 2015 a total of 3,447 people were killed, and 391,000 injured, in vehicle accidents involving a distracted driver 3. In the absence of other forms of driver impairment (e.g., drug/alcohol use, drowsiness, or emotional agitation), driver distraction is a critical factor in more than 50% of crashes that result in injury or property damage in the US 2. When accidents do occur, they are often due to driver distraction 1. Despite the challenges facing each driver, which include but are not limited to visual and auditory distractions that divert attention from the road, the majority of these daily automobile trips are successful and do not end in injury or death. Our results highlight a significant increase in bilateral prefrontal and parietal cortical activity that occurs in response to increasingly greater levels of smartphone distraction that, in turn, predicts changes in common indices of vehicle control.ĭriving an automobile is a common daily experience for millions of people around the world. Here, we employed functional near-infrared spectroscopy to examine the cortical activity that occurs under parametrically increasing levels of smartphone distraction during naturalistic driving. Because both functions elicit driver attention, an outstanding question is the degree to which drivers’ naturalistic interactions with navigation and texting applications differ in regard to brain and behavioral indices of distracted driving. While many smartphone functions aim to improve driving by providing the driver with real-time navigation and traffic updates, others, such as texting, are not compatible with driving and are often the cause of accidents. Smartphones and other modern technologies have introduced multiple new forms of distraction that color the modern driving experience.
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