[White walls for black holes: essay on graffiti psychopathology].

Through a clinical case, the authors propose a psychological approach of tagging. The phenomenon that started in Harlem's black ghettos at the end of seventies and appeared in France less than ten years after, does not seem to be a simple sociological one, but seems to take place within the psychic economy of certain adolescents as an attempt to operate the necessary identity work to become an adult. Tagging as well as wandering can be considered adolescents' acting out behaviors and show the externalization of the psychic processes, thus proving a basic insecurity in their psychic space, invaded by anaclitic depression.

[Usefulness of the concepts of "epigenesis" and "auto-organization" to understand the autistic child syndrome].

This article, based more on speculation than on clinical work, aims at clarifying the nature of child autistic syndromes using two elements: epigenetic findings concerning the construction of human brain and the idea that there is a self-organizing development and functioning of the living. First initiated by H. Atlan (1979) and A.

[Training in motor skills and psychopathology. Climbing with psychotic children].

The author investigates learning skills in psychotic and borderline children through the physical activity of climbing. Motor skills are considered as an interaction between the subject and his/her environment. Motor learning skills have been studied throughout 6 training sessions in rock-climbing.