Cognitive psychology is the branch of psychology that focuses on studying cognition, which refers to the mental processes involved in acquiring, processing, and using information. This field of psychology explores how people perceive, think, remember, and problem-solve. It examines various aspects of cognition, including attention, memory, language, decision-making, and problem-solving. By understanding these mental processes, cognitive psychologists aim to gain insights into human behavior and develop strategies to improve cognitive functioning and mental well-being.