Erich Neumann contributed greatly to the field of developmental psychology and the psychology of consciousness and creativity. Neumann had a theoretical and philosophical approach to analysis, contrasting with the more clinical concern in England and the United States. His most valuable contribution to psychology was the empirical concept of "centroversion", a synthesis of extra- and introversion. However, he is best known for his theory of feminine development, a theory formulated in numerous publications, most notably The Great Mother. His works also elucidate the way mythology throughout history reveals aspects of the development of consciousness that are parallel in both the individual and society as a whole.