As you are researching I'd check out the writing and thoughts of Norwegian Philosopher Arne Næss. He has a lot to say about different levels of rationality which are quite interesting. He began his philosophical as a hard-core rationalist with the Vienna school but later in life expanded rationality to include a larger rationality and human feeling. Also Christopher Alexander has insight here about including human feeling as an objective instead of solely subjective part of decision making.

http://www.amazon.com/Lifes-Philosophy-Reason-Feeling-Deeper... http://en.wikipedia.org/wiki/Arne_N%C3%A6ss