I actually once bought this book "Change Your Brain, Change Your Life", written by a certain Dr. Amen. I think his claims went not far beyond the emphasis on how diagnostic tools, most prominently MRI are useful for attuning treatment to the patient - including finding the right medication.
This was the dream of genetics, but unfortunately it's not everything, just one piece of the puzzle.....especially as far as the brain is concerned. Kind of like trying to troubleshoot application layer problems with physical layer intuition (sort of)
I bet dietary, microbial, and even life choice factors exist. It’ll be a long time before we nail all those down (if ever, with all the marketing in those factors).
you'd likely need this as well as the brain profile and several other profiles/fingerprints (liver history, etc) to really get to a complete model of drug action. so its a piece of the puzzle.
