How good is your scan ?

[The Wawa Zone]

Optical Illusions (http://www.wanttoknow.info/g/opticalillusions/optical_illusions_dots)

Still think you can see stuff out of the corner of your eye using peripheral vision ??

[Howard Hughes]

If you scan the picture (from dot to dot in a circular motion), it doesn't have the same effect as if you fixate. I think you have just proved that scanning does work when used correctly! ;)

[The Wawa Zone]

Yeah, you have to staaare at the AH / EADI to make it work :)

[onetrack]

Study up on "inattentional blindness" and it will frighten you. This is one of the reasons why otherwise-good eyewitnesses evidence is often at variance - and often a partly-hidden reason behind many unexplainable crashes.
Stay focussed on what you need to be looking for.

[Wally Mk2]

Interesting that you don't actually need to stare at the flashing dot, the other dots will also disappear at random if you can fixate on any place within the rotating blue +'s
Speed it up & you can get the whole lot going the other way!:-)

Wmk2

[ramble on]

Test Your Awareness: Do The Test - YouTube

[sisemen]

What basketball players? All I can see is bloody gorillas :E