What Affect Does Age Have On Reaction Time?

As you get older, your muscle movement part of reaction time gets slower, but your initial reaction time, the brain acknowledging the visual and deciding what to do is the same as younger individuals.  I know because I asked this question.

You reaction time will increase from birth tp your 20's and 30's and your reaction slows down during your 40's and above

As you grow older your reflexes slow making your reaction time increase.

I don't know, but PLEASE tell me if you find any good websites. I really need to answer this for my science fair project.

Well actually I have no idea but this is my topic for my science fair.
But I'm sure that when your older your reaction slows down......
Well thats what I think so I'm not certain...:)