As an approach to the work of adolescence, the notion of subjectivation involves an investigation into the specificity of the subject in question and the stakes of a process which will be drawn from an examination of three works. We will therefore have to revisit the singularity of these three original approaches to the processes of subjectivation: subject of the flesh and “ first unconscious ” (Cahn) ; oscillation between hysteric-depressive and basic melancholy (Richard) ; work on the active-passive turnabout and access to “ letting oneself be done to by the signifiers ” (Penot). The accent will be on the central function of the reality of the sexually differentiated body, which seems in some respects to be underestimated by these authors. In the second part of the article (which will appear in the next issue of the Revue) the options that we have chosen will lead to us to examine the subject’s relationship with its real “ potentials ”, which constitute it as a social and cultural subject, as well as the work of auto-creation and that of sublimation(s), understood to be essential to the loosening of the drives. If the subject in question is an ego-subject, this will result in a confrontation of two intentionalities within the clinical approaches : one having to do with the ego (functional and narrative) and the other with the subject (divided and confronted with castration.)