Regina A. Rini (forthcoming). “Psychology and the Aims of Normative Ethics”. To appear in Springer Handbook of Neuroethics (ed. J. Clausen and N. Levy). Psychology and the Aims of Normative Ethics Regina A. Rini University of Oxford
[email protected] Abstract: This chapter discusses the philosophical relevance of empirical research on moral cognition. It distinguishes three central aims of normative ethical theory: understanding the nature of moral agency, identifying morally right actions, and determining the justification of moral beliefs. For each of these aims, the chapter considers and rejects arguments against employing cognitive scientific research in normative inquiry. It concludes by suggesting that, whichever of the central aims one begins from, normative ethics is improved by engaging with the science of moral cognition. Key words: is/ought gap, moral agency, moral intuition, moral philosophy, ought-implies- can I. Three Central Questions of Normative Ethics It is undeniable that the field of empirical moral psychology has grown dramatically in the last decade, with new experimental techniques allowing us unprecedented understanding of the causal and computational structures of the human moral faculty. Or, at least, it is undeniable that this research contributes to a descriptive project, one of better understanding the facts about who we are and how we think.1 But what might be denied is that these investigations have much to offer to normative ethics, a distinctively prescriptive sort of inquiry.2 The purpose of this chapter is to show why normative ethics - the study of 1 Although this chapter discusses quite a range of psychological findings, it is not intended to be a comprehensive overview of the empirical literature.