best wishes with the therapy, it stands to reason that chemical imbalance plays a part in brain injury, as it dose in many other brain disorders , also the function of the cerebral spinal fluid and the choroid plexus, which is just starting to be fully understood as a nutrient transmitter, please let us know how you get on , but try to remember as with all things neurological, its slow to heal, but they may well be on to something , they can treat here !!