I've noticed when I am calm and able to meditate in a relaxed environment, I am able to move my attention and focus to different parts of my brain/body, and literally "feel" them working. When I am relaxed, I am somehow able to activate various parts of my brain that aren't functioning normally, and for the next few hours, my ADD symptoms go away. However, when I enter a stressful situation, the temporary "fix" dissapears quickly. I was wondering if any research has been done on teaching people with ADD how to do this and keep it going? I can't seem to do it when I'm under stress, since I can't focus enough during that time, but the potential is there...

I've wondered this same question because I've even had short seasons of feeling this way, where for some reason the mind body and spirit were just working together the way they should. I remember this summer taking a test and I am usually the last person to finish and maybe pass the darn thing. Well It was during a season of meditating and really feeling God and I took that test like a different person. Strange. That all went out the window however and I stand asking the same question you asked. Maybe it is that as we learn to still our selves and our minds in this fast paced society we were born into, we actually are being still before God and our minds are being transformed. Ahh, I could soak in that all day.

yeah. it does bring with it a sort of spiritual euphoria, where I feel very interconnected with everything around me if I do it intensely enough, one time this connection seemed so clear I could predict the color of car that was going to pass me next and I knew when a bee would fly by and which flower it would land on... miliseconds before it happened, and it all felt right. I think this has to do with an extreme of the way we think, being ultra-aware of our environment and able to see past "mundane reality" to make connections that are extremely subtle and powerful. like the butterfly effect and quantum chaos, or the pattern of the branches of a tree as they stretch and writhe towards the sun over the course of a day, a week, a month, and over the years and decades of the tree's life, which, from a mundane view, looks extremely random and chaotic, but to me, I see the beautiful harmony of the dance of life along the web of time.
I know it sounds kind of strange, but that's how I see it. :)

I can not meditate, I get relaxed, my mind floats to some pretty bizarre places, and I am out.
I started practicing yoga a while back, and I have been able to get my mind and body to work together as you described for brief periods. It is incredibly powerful, and can never be predicted, the feeling is fleeting but for me the sense of calmness and grace is cumulative.
Adders are extremely intuitive, when I was a kid I had many experiences like you mentioned, (I could reach my hand into a pocket full of MM's or gumdrops and tell you the color it was going to be, only 4 or so colors to choose from, but hey I was almost always right) now it is almost all gone, but I can still read people well.

it's called biofeedback therapy. I did it while I was in college for ADD, and it's just like you said-- you learn to control parts of your brain by just thinking about them.

I couldn't afford to continue the treatment, but I was making progress on it.make sure the doctor you choose for biofeedback therapy has a course of treatment specifically designed for a ADD treatment-- they have certifications for the sort of thing. Check the doctor's credentials to make sure they are certified in it,and good luck :-)

Consistent practise is key to building up my ability to carry that calm with me for longer and longer periods. When I have found time to sit twice a day, first thing in the morning and then again in the evening, my vulnerability to loosing my centre is much reduced. It seems to take a couple of weeks at least to even begin to benefit from meditation for me.

Even if I can sit for as little as ten minutes twice a day, I can begin to build up my strength and carry a calmer disposition into stressful situations. Without that consistency, I don't see nearly the same positive impact.

I've also come to believe that an active physical exercise is at least as important to my calm and focus.
Cheers! Ian.