Belief change refers to the process by which an individual's or group's beliefs are altered or modified. This can occur due to new information, experiences, or persuasive communication that challenges existing beliefs. Factors such as social influence, cognitive dissonance, and emotional responses can play significant roles in how and why beliefs change. In psychology, belief change is often studied in relation to cognitive psychology and social psychology. Techniques such as persuasion and attitude change are commonly explored to understand how beliefs can be shifted. Understanding belief change is important in various fields, including marketing, education, and conflict resolution.