Abstract

Our understanding of human morality would benefit from an integrated interdisciplinary approach, built on the assumption that human beings are multidimensional unities with real, irreducible, and mutually interdependent spiritual, relational, emotional, rational, and physiological aspects. We could integrate relevant information from neurobiological, psychosocial, and theological perspectives, avoiding unnecessary reductionism and naturalism. This approach is modeled by addressing the particular limited role of disgust in morality. Psychosocial research reveals disgust as a universal emotion that enables evaluation and regulation of certain moral behaviors and is involved in cultural identity. Theologically, many religious traditions, including the Judeo‐Christian, use disgust in conjunction with moral codes designed to preserve purity and communal identity as the people of God. The concept of natural moral law suggests that morality is embodied in human nature. Neurobiology is beginning to trace the neural circuitry involved in disgust and in moral evaluation, suggesting that emotions are a necessary basis for moral judgment and revealing intriguing relationships between disgust, morality, and other aspects of the psyche. Several problems that arise within these disciplines and at their intersections are identified. Extension of the model to other aspects of human morality would further illuminate our understanding of morality without sacrificing its complexity and richness.