The connection is at least mentioned a lot, right? I think it's got to be in most of Dr. Yang's books.
I don't know about lots of in-depth stuff about it. There's a cognitive scientist at University of Toronto called John Vervaeke who does work about wisdom and has given a talk about chi. I don't think there's a whole lot of of relevant, meaningful content in it about chi, but it's out there. It's kind of just a talk about a bunch of well-known cognitive psychology research on learning and problem solving, and then he says "chi" a couple of times. I don't get it.
http://www.youtube.com/watch?v=vcp6J1T60qc