ABSTRACT
Sandor Ferenczi's psychoanalytic work has its place within the evolution of the psychoanalytic ideas of his time; the work of one of the pioneers of psychoanalysis which, with regard to the advances proposed by Sigmund Freud, relentlessly nourishes the clinical and theoretical debate. Three periods can be distinguished in the evolution of Ferenczi's ideas. The first period was marked by the stamp of the creation of the concept of 'introjection'. It was also a period that allowed Ferenczi to contribute key elements to the elaboration of the Freudian edifice. The second period saw Ferenczi develop a growing interest for psychoanalytic technique. Also, this was a period when Ferenczi was in full possession of his clinical gifts. This period was above all marked by the publication of Thalassa: A Theory of Genitality, a 'bioanalytic' fiction which was Ferenczi's major work. The third period is characterised by the bringing into perspective of new orientations and new technical propositions.
