Apart from this, our brains (actually brains of all things that have to hunt/be hunted) are extremely good at detecting motion, especially at the peripherals. T

Apart from this, our brains (actually brains of all things that have to hunt/be hunted) are extremely good at detecting motion, especially at the peripherals. This makes us extremely good at detecting stuff like a pedestrian who is about to cross the road, or an incoming vehicle from a junction... I mean, we could be focusing 100% on the road ahead, and can still respond to peripheral events lightning fast.. I think this is why a lack of sleep can quite adversely affect driving. It seems that if you haven't slept well. the "behind the scene" processing takes a hit, which greatly impacts driving capability..