I'm not sure how prevalent it actually is, but I get the impression that obsessive masturbation is at least common in sufferers of both schizotypy and ASD. The main effect of orgasm is to release oxytocin into the system, an important social hormone. This hormone also has the effect of lowering activity in the amygdala, which interests me a great deal because some of the most upsetting problems tied to autism arise from heightened activity in this region. What is fascinating is that oxytocin is derived from dopamine, excesses of which can result in paranoia, hallucinations and magical thinking. It actually occurred to me very rapidly, but has anyone considered the possibility that many autists and schizotypes just have trouble converting dopamine into oxytocin? Raising one's oxytocin levels should have the effect of heightening one's comfort around people and building social bonds, so perhaps a poverty in one's ability to manufacture it under normal circumstances would have the opposite effect. This may be why some of us can't have casein; endogenous opioids, which act via the kappa receptors, have the effect of inhibiting the release of oxytocin. Furthermore, it's possible that orgasm, in some people, has the effect of jump-starting the system into releasing more oxytocin, thus draining from one's supply of dopamine (this would those of us who w*k all night. You know who you are).
Although this sounds a little odd, dopamine does play a key role in creativity and overall intelligence, which schizotypes and Aspergians, respectively, are legendary for. I think that it would be quite feasible to treat both disorders (and possibly bipolar disorder, cyclothymia, etc.) using a long-acting oxytocin agonist. This SHOULD have the effect of heightening our social ambulation while allowing us to maintain our intellectual superiority. This would put us one step closer to global domination, so it's a definite win if all of this holds up. Anyone, please, throw facts and logic at this before I get over-excited about it.