"I was driving at night and saw the indicator LED on my phone flashing blue out of the corner of my eye. When I stopped and checked it, it turned out that it wa

"I was driving at night and saw the indicator LED on my phone flashing blue out of the corner of my eye. When I stopped and checked it, it turned out that it was actually yellow." I quite often have a similar experience... I always put my phone on my desk just below my monitor - just at the edge of my field-of-view. My phone has an LED that flashes green when I have an SMS and red when I have a missed call or low battery (both with the same cadence). If I'm focussed on the monitor, I can see the light flashing but until I look at it, it appears to be flashing white (presumably because I have very few cones at the edge of my field-of-view). Even more interestingly, once I have looked at it, determined whether it's red or green, and then return my eyes to looking at the monitor, I can still see it flashing at the edge of my field-of-view, but now my brain fills in which color it is - I now see it flashing red or green (despite there still being no cones to detect this). I think it's amazing how of my perception of the world is actually filled in by my brain rather than "raw data".