Cognitive psychology is a branch of psychology that studies mental processes such as perception, memory, reasoning, and problem-solving. It focuses on how people understand, think, and remember information, exploring how these processes influence behavior. Researchers in this field often use experiments to understand how the mind works and how it can be affected by various factors. This discipline is closely related to fields like neuroscience, which examines the brain's role in cognition, and artificial intelligence, which seeks to replicate human thought processes in machines. Cognitive psychology has practical applications in areas such as education, therapy, and user experience design.