I have found the general advice of being good to your brain by Dr Daniel Amen helpful- what people have said here about avoiding toxins, eating a balanced diet, no nicotine, little caffeine which reduced blood flow to the brain.
Also Vitamin D and Omega 3 have helped me tremendously.., I have noticed a change since taking them regularly, more so than increased doses of Invega.
Just on the boards here looking to see if people have found the same~
cheers