It's not a strict relationship as far as I understand though. As in, frontal lobe issues are visible on many brain scans, but those brain scans are not specific

It's not a strict relationship as far as I understand though. As in, frontal lobe issues are visible on many brain scans, but those brain scans are not specific enough to map onto ADHD diagnosis. So we don't have a good diagnostic test right now even though we have many population-level confirmed differences that we can run tests and statistics on.