 ), Erwin J. Haeberle (1986-2002), Gunter Runkel (2002-2006) , and Jakob Pastoetter (2006-).From the very beginning, the DGSS has emphasized the importance of the social, behavioral, and cultural sciences for an adequate understanding of the human sexualities in their many forms, facets, and variations.In addition to traditional sexological fields like biology, physiology, and medicine, the DGSS focus has centered on the social sciences, psychology, and ethnology, embracing also educational, legal, and historical aspects.