Nothing really new here except for the scientific explanation of a long-time known phenomenon. Dali himself explains in his autobiography that at a time he felt he was about to cross the line and fall into real insanity, but with the help of Gala (who apparently really saved him) "decided" to "become a genius" instead (whether you like Dali or not is irrelevant here - this guy was a real genius, period). And yes, the most creative people I've ever met and / or worked with, whatever the field, were all borderline personnalities with an ability to stray out of "common sense" and conventional "wisdom" or "best practices". I've seen this in arts (music, painting, poetry...) of course, but also - and sometimes even more strikingly - in computer science.
One of my friends would be a perfect "cas d'école" to illustrate this paper. The guy - who's brother and first son are both suffering from severe schizophrenia - has more than once amazed me with crazy solutions to non-trivial technical problems - and when I say crazy, I mean (this me reacting to his latest brillant idea) : "err... Wait... Waht did you smoke ? You *can't* do that ! You're kidding me, aren't you ? No, wait, lemme think about it... Hey, wait, ok, this _looks_ insane, but, hey, yes you're right, it should JustWork, now why didn't I even think of this before, OMG it's so simply obvious, it WILL JustWork, how does it come I could not see it, man you're a f**** genius !!!" (here me slapping my head against my keyboard...). This guy would be rich and famous by now if he wasn't such a motorhead (and that's an understatement) himself :-/