Cognitive psychology is a branch of psychology that focuses on studying mental processes such as attention, memory, perception, problem-solving, and decision-making. It explores how humans acquire, process, store, and retrieve information. Cognitive psychologists employ various research methods, such as experimental studies, brain imaging techniques, and computer simulations, to investigate mental processes. This field has made significant contributions to our understanding of human cognition and behavior, and has applications in areas such as education, clinical psychology, and artificial intelligence. In summary, cognitive psychology plays a crucial role in unraveling the complexities of the human mind.