thanks for the reply goldengirl, good questions, I've no idea where to get them. It seems the flashing lights somehow excites receptors which then fire to the brain stem in 3 areas and one of these areas stimulate cells into producing dopamine - this is via the retina.
I found it very interesting
It seems to also explain what causes scoliosis - i.e stooping/curving of the spine - this is because the lack of dopamine means weak medial rectus muscles which then causes weakness along the spine, and the spine curves
I hope im understanding the information in the article correctly