The "Trolley Problems," and other Moral Dilemmas
The field of Cognitive Psychology has shown a recent interest in the psychology of morality. Can psychology tell us what is moral? Definitely not. Can psychology help us understand how we approach moral issues in our lives? Maybe. Is there a common "moral instinct" which most humans share? Quite possibly. Can looking at difficult moral dilemmas illuminate what keeps people on the right track most of the time? Doubt it. Still interesting, though.
Rebecca Saxe sums up current thinking in the psychology of morality: "Do the Right Thing."