Reason and Moral Dilemmas.

Intuitive vs. Rational thinking - Beliefnet Forums: "To take Hauser's example, the decision to sacrifice the one on the siding to save the 5 on the main track, is not amenable to reason. If the five on the main track are fighting a gang war, and the one on the siding is a police officer trying to call in assistance or use his authority to end the fighting, reason cannot override the decision to divert the trolley to kill the officer."

Intuitive vs. Rational moral responses

Intuitive vs. Rational thinking - Beliefnet Forums: "The intuitive response to any moral situation is the integration of all we have learned about that type of moral situation, whether the learning was intuitive 'mama spank' or rational, 'that comment caused emotional injury, I shouldn't say that again.'"

Reason and Cultural Heratage

Most strike a good balance between rationality and intuition, distributed along the continuum, if these are indeed a continuum, in the normal bell curve distribution. Some on the intuitive side with some application of reason, others on the reasoning side with some reliance on the collective wisdom of their childhood.
Cerebral and/or Visceral: Talking Past Each Other - Beliefnet Forums

Moral judgments vs morality

A moral action is a snapshot of the moral state of the actor at the time. It is unreasoned. The underlying morality of the actor is malleable by reason.
David Brooks on 'Neural Buddhists' - Beliefnet Forums