Cognitive psychology is a branch of psychology that focuses on studying mental processes such as memory, problem solving, decision-making, perception, attention, and language. Researchers in this field seek to understand how people think, learn, and remember information, as well as how cognitive processes develop over time and can be influenced by factors such as emotions, motivation, and culture. Cognitive psychology uses a variety of research methods, including experiments, observation, and computer simulations, to investigate how these mental processes work and how they can be improved or optimized. This field has broad applications in areas such as education, healthcare, and technology, and has contributed valuable insights into human behavior and cognition.