I was made computer game based on speed of reflex, very long time ago. In short, they must press the right button as soon as possible depends on what shown on the screen. Just like cowboy duel. On the test with my colleagues, I realized that most of my friend who smarter in college, in average have faster response. I think (despite the ammount of grey cells in our head), there is correlation between speed of reflex with intelligence. While doing the game, total speed achieved based on censoric, brain processing, and motoric speed. (isn't it?) What do you think?