Wikipedia
Self-Persuasion is used to explain one aspect of social influence. This theory postulates that the receiver takes an active role in persuading himself or herself to change his or her attitude or behavior. Unlike the direct technique of Persuasion, Self-persuasion is indirect and entails placing people in situations where they are motivated to persuade themselves to change. More specifically what characterizes a self-persuasion situation is that no direct attempt is made to convince anyone of anything. Thus, with self-persuasion, people are convinced that the motivation for change has come from within, so the persuasion factors of another person’s influence is irrelevant. Therefore, Self-persuasion is almost always a more powerful form of persuasion (deeper, longer lasting) than the more traditional persuasion techniques. Self-Persuasion, also has an important influence in Social judgment theory, Elaboration Likelihood Model, Cognitive Dissonance and Narrative paradigm.