Yo sorry I got your om but Ive been pretty sick from withdrawal. I meant to respond. I was on Invega for two months, and it gave me suicidal akathesia, comparable or worse to the worst phases of my illness.
Two things I did while on the medicine which must have attenuated toxicity: exercising moderately for 1-2 hours, every single day and drinking no less than 300mg caffeine per day, usually about 500mg.
Things I did after taking the medicine which probably did the same: same on the caffeine, taking a low-dose of abilify daily per doctor's prescription, taking a low-moderate dose of amphetamine daily per doctor's prescription (which has helped my illness more than any anti-psychotic), occasional exercise, socialization, a positive attitude...
;and very importantly a constant dedication to logic, shown persistently through decent, honest, scientific thought and conversation, like what we do on bluelight! Read! Think! Respond to articles with your own opinions! Develop viewpoints! The brain is very adaptive, and most importantly, it is a muscle. If you use it, it will grow, a lot.
I don't recommend you necessarily opt for the medications I do, as I have an atypical disease which has aspects of all well-defined mental disorders and responds curiously to several drugs. For instance, benzodiazepines stimulate me to do things, while stimulants calm me enough to stop talking.
Caveat: trying to fix problems caused by drugs with other drugs is a risky, inexact process. No matter what you do, if you're dealing with psychoactive compounds, consult a doctor, do your research, or at least let us tell you the most healthy way to go about doing so. For sure, no reasonable person on bluelight would advocate fixing drug problems with just drugs, but with the integration of habits too, as this former approach usually leads to several detrimental dependencies. Its a little different when it comes to cognition, but messing with the brain, even by taking a supplement, can have a large overall effect.
As it goes, exercise, anti-oxidants, vitamins, meditation, fish oil, zinc, magnesium, and challenging, a healthful diet, and productive use of the brain will help repair your cognition.
Mild stimulants such as caffeine, nicotine, and ephedrine would augment the brain cognitively. Piperazines, phenethylamines, cathinones, MAOIs, and generally all powerful sympathomimetics should be used under doctor supervision and never to get "high".
I fell you though man. I care about cognition. That's why I use amphetamine. Attention disorders can be debilitating. It also functions as my anxiolytic, anti-depressant, anti-psychotic, and generally holds me together. If I abused it, all would be lost.
To directly answer your question, no, my brain hasn't 'returned'. However, I consider it superior.