It could explain why stimulants seem to help you. I think the technical term for such a finding is hypofrontality.
Yes, indeed. I knew about hypofrontality and stimulants long before the scan. The results just confirmed this. But they're not sustainable solution. Can't take it anymore cuz I've got Hashimoto and I react differently to meds. When the thyroid will be healed, then maybe I will take it again.