necrotimus
Stop looking at my title!
...
A friend of mine once said that riding is like playing a video game and the object is to always have an out, and to be able to predict what the other vehicles are going to do. Having a wider vision, and being able to see the whole picture really helps...
Misti
I have read about and practiced the drills for increasing your 'wide screen awarness' and they did help but to be honest nothing has helped me more than playing video games. The trick is to have a large enough tv where you can sit close enough that the edges are in your peripheral vision only. A lot of action happens out there and it won't be long before you are identifying threats and reacting faster.
If you want a less exciting option you can search peripheral vision training.