LAUSR

Abstract Developmental psychology has paid special research attention to explain how certain moral-nature factors influence behavior. Most research on morality and bullying has focused on studying moral disengagement as a risk factor for peer aggression. However, neuroscience has revealed that morality is a complex phenomenon composed of several factors. Thus, it requires the usage of holistic explanatory models that study the complexity of the moral functioning. The purpose of this review is to explore —from an integrative perspective— the moral elements that influence the transgressive behavior that damages other people, and its relation to bullying, a clear example of unjustified and immoral aggressiveness. This article reviews the state-of-the-art of morality including moral sensitivity, reasoning, emotion, motivation and identity, and group norms, analyzing its protective role against bullying. The need for a comprehensive theoretical approach to morality understood as a complex construct is discussed, starting from the articulated analysis of all its dimensions. This work advances knowledge useful for the design of educational interventions aimed to prevent bullying, to stimulate the socially desirable and prosocial behavior, as well as to improve peer relationships.