On consciousness causing the collapse of the wave function, I get the gist of it but have not really looked too deeply into the idea. All to say links are welcome!
I've definitely heard about Orch-OR...here's what I gather:
Until recent discoveries I figured it was one of the more out-there possibilities, though now with the new evidence it seems like it might be in the running.
Penrose seems to be a believer in what I understand to be Popper's three worlds, and as I understand it the brain connects to the mental/mathematical realm via quantum vibrations microtubules? (Apparently a naturalist named Massimo
concedes the necessity of such a Platonic realm, so that's something.)
I know John Lucas, who has worked with or at least parallel to Penrose on showing the mind transcends computation, rejects the Platonic stuff but agrees with Penrose about the Godelian Argument showing
humanity is capable of creative acts that are not simply results of indeterminism. Sadly my mathematical knowledge is not deep enough to be certain I get the Godelian argument or the rebuttals.