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This text is part of a university research (psychology doctorate) which deals with the link between aggressive acting-out in adolescence and reactivation of early sensoriality, using projective methods interpreted according to the method of the School of Paris. Considering that in adolescence there is on the one hand a close link between the enactment of aggression and separation anxiety, and on the other hand a relationship between the quest for physical contact and early sensoriality, we hypothesize that the enactment of separation anxiety through physical aggression reactivates the early binding to the object and the sensoriality that animates it. After a theoretical development, we attempt to examine the link between early sensoriality and physical aggression, through the clinical illustration of a 17-year-old adolescent, before identifying some areas of reflection.