I was personally introduced to the concept of High Velocity Human Factors on Wednesday by the designer who I believe coined the phrase - Moin Rahman of Motorola. It is a great concept and a rich area for human factors design.
Basically, the idea is that there are contexts/environments that operate at very high speeds. Police, military, firefighting, etc. In these situations, the way people sense, perceive, assess, and react may be fundamentally different. But no one has really delved into how. It is likely that emotional contributions to information processing increases. But again, we don't know quite how.
There is evidence that emotion and time pressure both narrow the scope of attention. Emotion may also affect color perception. Emotion could also cause priming of particular response schema.
I am really looking forward to getting involved in this research domain and finding out. If interested, let me know. We are always looking for more collaborators.