Have others had experience in giving/teaching Reiki to ADD/ADHD or Indigo children?

I am also interested in how Reiki can be used to help children. I am setting up my own Reiki practice after having worked as a Montessori Directress for almost four and a half years. I am learning to follow my intuition through life; it led me to Reiki, a career change and now a further career change to focus more intently on Reiki (I hope to add other holistic healing strings to my bow in the future).

My only experiences with Reiki and children so far, having none of my own (yet) were as a Montessori Directress (2-6 year olds) and First Aider in the classroom. I found that even without conscious intent, Reiki would flow, calming children.It was rarely possible to speak to the parent to gain permission and when consciously using Reiki I would silently ask permission from the child's higher self rather than getting odd looks from my co-Directresses, though I'm sure the child wouldn't find it odd.

I seem to have had naturally good relations with many an old soul in a young body! I attribute this largely to being a Reiki 2 at the time.

There was one particular child who, though not diagnosed with anything, was clearly trying to deal with emotional behavioural issues. Lovely and horrendously challenging at the same time, in hindsight I suspect that this child had also drawn quite a lot of Reiki through me and subsequently showed many signs of healing crisis and progress. Now I'm not claiming to be the only factor, but I do believe that, even though not consciously given in a treatment room setting, energy flowed and there was a definite reaction.

I hope to work further in this field. Can anybody point me toward any useful literature regarding Reiki and Children?