title: Models of morality.
abstract: Moral dilemmas engender conflicts between two traditions: consequentialism, which evaluates actions based on their outcomes, and deontology, which evaluates actions themselves. These strikingly resemble two distinct decision-making architectures: a model-based system that selects actions based on inferences about their consequences; and a model-free system that selects actions based on their reinforcement history. Here, I consider how these systems, along with a Pavlovian system that responds reflexively to rewards and punishments, can illuminate puzzles in moral psychology.
authors.affiliation: Wellcome Trust Centre for Neuroimaging, University College London, 12 Queen Square, London WC1N 3BG, UK. molly.crockett@ucl.ac.uk
authors.forename: Molly J
authors.initials: MJ
authors.lastname: Crockett
mesh_terms: D006801:Humans; D008960:Models, Psychological; D009014:Morals