Final answer:
Cognitive psychology is the branch of psychology that investigates perception, thinking, language, problem-solving, and creativity. It focuses on studying how individuals process information, think, reason, and solve problems.
Step-by-step explanation:
Cognitive psychology, the branch of psychology that focuses on the study of human thinking and behavior, is the subject of investigation for those interested in understanding perception, thinking, language, problem-solving, and creativity. Cognitive psychologists study how individuals perceive, process, and interpret information from their environment, as well as how they think, reason, and solve problems. They also examine the role of language in cognitive processes and explore creativity and problem-solving abilities.