Why Pilots Need To Use Good Scaning Techniques

We have all been taught proper scanning techniques. Usually something like "keep your eyes moving and your head on a swivel". Without some occasional reminders, it is easy to kick back, relax and watch out the front window when flying straight. Mark Rottler has found a couple of internet tools which will convince you this may not be the best idea. They have fancy names like Troxler's Fading, and Motion Induced Blindness, but are an easy fun exercise that may convince you that you cannot always believe what you think you see.

http://en.wikipedia.org/wiki/Troxler%27s_fading

http://www.msf-usa.org/motion.html