ADOLESCENCE, INDIFFERENTIATION, AND THE ONSET OF PSYCHOSIS Henri Grivois Hôtel-Dieu, Paris The onset of psychosis happens, by definition, only once. The first psychotic episode is unforeseeable and risks being overlooked. Left to itself its future is uncertain, and the prognosis is potentially unfavorable. The variety of its manifestations as well as its thymic and cognitive instability...
Drawing on his practice as a psychiatrist, the author approaches madness as an emergent phenomenon and as an event. The beginning of psychosis is held to result from a subjective permeability, which belongs itself to an ecology of the mind seen as a moving being. As an emergent phenomenon, psychosis shows two characteristics which the paper analyses in terms of disturbances in the interaction...