is a methodological approach rather than a subject and encompasses varied fields within psychology. Experimental psychologists have traditionally conducted research, published articles, and taught classes on neuroscience, developmental psychology, sensation, perception, attention, consciousness, learning, memory, thinking, and language. Recently, however, the experimental approach has extended to motivation, emotion, and social psychology. Experimental psychologists conduct research with the help of experimental methods. The concern of experimental psychology is discovering the processes underlying behavior and cognition, as well as PHENOMENA.