Psychology is the scientific study of the mind and behavior, according to the American Psychological Association. Psychology is a multifaceted discipline and includes many sub-fields of study such areas as human development, sports, health, clinical, social behavior and cognitive processes.

Despite the failure of introspection Wundt is an important figure in the history of psychology as he opened the first laboratory dedicated to psychology in 1879, and its opening is usually thought of as the beginning of modern experimental psychology.