Previous studies of morality have relied on self-report measures to track changes in morality. Tracking autonomic responses in congruence with self-report measures offer more reliable data. Self-reported deontological responses in past research have shown stronger autonomic responses compared to that of utilitarian answers. Moral decision-making may elicit a physical response and thus changes can be tracked through measurements of autonomic responses. Some current methods of measuring autonomic responses to various situations and decision-making are tracking galvanic skin response, heart activity, and eye activity. These can be used as measures of autonomic nervous system activity and be used to distinguish changes in moral reasoning elicited through moral development exercises
