Somewhat on topic, I'm curious if anyone knows if you can manipulate what you could call the sixth sence. And in this case I'm talking about body awareness (aka balance sence, knowing were your limbs are without touching or seeing them, etc). It's easy to disrupt that (getting drunk for example), but can you manipulate it, aka give it false information, say that you sit when you stand and stuff like that?

To completely trick the mind, you'll need to deal with that.