I was reading your study, and got to the part where they said it is hard to empirically test this theory because of limited genome whatever, and it crossed my mind Africans don’t carry the neanderthal DNA Europeans do, so i looked up if ADHD was more common in either race and it apparently is much more prevalent in white people. Yeah correlation isn’t causation but it is interesting.
I haven’t done too much research into ADHD (which I don’t have) but if it’s anything like autism (which I do have) then it may well be that it’s just massively under diagnosed in people who aren’t rich, white, boys. I know they aren’t the same but that’s certainly the case for autism, and there is a high rate of co-occurrence between the two.
Some articles mentioned something along those lines, but they seemed more written with an axe to grind, and more from the states. The rich part I can’t speak to, but autism is just plain more common in whites than blacks, not underdiagnosed, to my understanding. Ed girlfriend used to work with the autistic, and in a heavily multicutural city where white people are not a clear majority, nearly all the severely autistic she worked with were white/iranian/middle eastern/ other whitish varieties it seemed, hardly any black or asian.
