Cognitive theory is a psychological framework that focuses on understanding how people think, learn, and remember. It emphasizes the role of mental processes, such as perception, memory, and problem-solving, in shaping behavior. This theory suggests that our thoughts influence our feelings and actions, making it essential to study these cognitive processes to understand human behavior better. One key figure in cognitive theory is Jean Piaget, who studied how children develop thinking skills. His work highlighted the stages of cognitive development, showing how children's understanding of the world evolves over time. Cognitive theory has applications in various fields, including education and therapy, helping to improve learning and mental health.