사고 (Thought) refers to the mental process of considering, reasoning, or reflecting on information. It involves the manipulation of ideas and concepts, allowing individuals to solve problems, make decisions, and understand the world around them. This cognitive activity can be influenced by emotions, experiences, and external stimuli. In psychology, 사고 is often studied to understand how people process information and develop beliefs. Different types of 사고 include 비판적 사고 (critical thinking), which evaluates information logically, and 창의적 사고 (creative thinking), which generates new ideas. Understanding 사고 is essential for effective communication and learning.