Mon père, ma mère, mes frères et mes soeurs

Abstract

The purpose of this paper is to approach the incidence of family's constellation on the structuring of the subject, as well as the unconscious bond between brothers and sisters regarding the child's symptom.The theoretical background of this work lies on the perspective of two essentials texts from Jacques Lacan's teachings: The family complexes in the structuring of a subject and Two notes on the child. Then we studied the symptomatic incidences of the birth of a sibling from certain elements of the famous clinical cases of Little Hans and Little Piggle. Finally we underlined the mouvement of the evolution of the societies and his effects in the reinvention of the family structure and the social link.