Psychology is the scientific study of thoughts, feelings and behaviour (Weiten, 2004). Compared to biology, chemistry or physics, psychology is a young scientific field. In 1879, William Wundt established the first psychology research lab at the University of Leipzig. In 1881, the first psychology journal was established, also by Wundt. Other important early contributors to psychology include William James (“stream of consciousness”), John B. Watson (behaviourism) and Sigmund Freud (the “unconscious”) (Weiten, 2004). Traditional influences include philosophy and physiology; however, as a multidisciplinary field, psychology is now influenced by disparate areas including computer science, medicine, music, feminism and social science. »