Scientific theories appear influenced for the conditions of the social life in the economic aspects, politicians, cultural etc. They are historical products created by concrete men who live its time and contributes or radically modify the development of science. Sigmund Freud (1856-1839) was a Viennese doctor whom changed in an extreme way the imagination about the psychic life.
His contribution is comparable to Karl Max in the comprehension of the historical and social phenomena. Freud dared to place the [mysterious processes] of the psychism, its [obscure regions], that are, the fancies, dreams, the black holes, the interiority of the man, as scientific questions. The systematic inquiry of these problems took Freud to the creation of the Psychoanalysis.
The Term Psychoanalysis is used to design itself as a theory, a method of inquiry and one practical professional. Theory is characterized for a set of wisdom systemized on the functioning of the psychic life. Freud published an extensive letter work, during all his life, telling his discoveries and formulating general laws on the structures and the functioning of psyche human being.