TruthSpeaker,
It's interesting you should say this, because the reason I posted this was:
Since starting AD, I had been religiously keeping Vitamin C out of my diet*, because of everything I had read that said that it caused acidification of intestinal content, resulting in lowered absorption and retention of the AD.
However, I then learned that it's only the "Ascorbic acid" form of C that causes this acidification, and other forms of C (the X-ascorbates, e.g., magnesium ascorbate, sodium ascorbate, niacin ascorbate) caused no acidification.
I realized that I had some magnesium ascorbate powder lying around, and the following day I took some of the mg-a (including ~800% RDA of Vitamin C) about an hour before dosing the AD.** I also took more at about +T3:00 after the first 30mg of AD.
My experience was markedly different from any I had had before. First of all, there was very little or no euphoria. I don't normally experience a great deal of euphoria from AD any more, but still usually do get mild-to-moderate euphoric effects that last for about an hour, from +T0:30 to +T1:30. This time, there was almost none, if any.
Second, I felt totally "clean" throughout my body. The best analogy I can think of is the feeling one has about an hour after completing a work-out, once the peak of the endorphin high is well past. For some reason "clean" is the absolute best way to describe the feeling, but this is somewhat unhelpful I realize because it has very little explanatory value. That is, someone else who's expereienced it may think "that's exactly it, I know what he's talking about," but someone who hasn't will probably think it doesn't really mean much to them.
Third, this was by far the greatest improvement to my ability to concentrate/ "momentum" that I have experienced from AD. It was the first time I've experienced a "time-warp"-type effect: I was drawing, and all of a sudden noticed the clock, and it was an hour later. I had been totally lost in the activity. It was almost to the point of overfocus, and over-inertia: I would be reading something, and realize that I was really thirsty, and wanted to get a glass of water. But there was this underlying drive to "stick to" the main task of reading, and I would keep going with it even though I really was thirsty and really did want to get a glass of water right then. It would take about two or three more instances of my thirst/desire to get water "popping into my head" before it got to the point where I more or less thought "this is ridiculous!" and with what felt like great effort, stopped reading and went to get water.
The reason I asked about the possibility that C causes dopamine to stick around longer and norepinephrine to be produced less was the combination of my experience (less euphoria, much more focus) and my (clearly very limited) knowledge of neurochemistry. It seemed to "make sense" on both levels. Although as posters have already pointed out, it seems unlikely that this is the case.
*I was doing this only before dosing/during the experience. I had, for example, been taking a multivitamin including C, but only late at night, well after the last dose of the day had tailed off.
**I'm fairly certain the main variable here was the Vitamin C, because I have been dosing mag before/during the AD experience all along. When I tried the mg-a, I accounted for the amount of mg I was getting from it, and took less mg-gluconate, so although it's possible my different expereince after the mg-a was due to differential absorption of the mg-a vs. mg-g, I believe it's unlikely because the amount of mg from the mg-a was very small.