Yes, my son is 10 and has we have suspected since he was 4, that he was ADHD, he has been on medication since the age of 6. Without his medication, Adderall, we would catch him doing something and he would lie about it. If you asked him why he did something he would not even seem to remember doing or saying what he did. He honestly did not remember doing the "deed". We came to the conclusion, and I have done some reading about ADHD that supports this, that their minds and bodies go at such a fast pace, they do not remember what they did 2 seconds ago, because their mind is already 5 minutes ahead of that,(racing). I hope this makes sense and I strongly believe after seeing my son and other ADHD kids behavior, that they do not remember having done things. By the way, my son does not have this problem when on his medication, it slows him down and makes him behave more normally.