The technique of "progressive mirror drawing" for the psychodynamic therapy of psychoses, developed by Gaetano Benedetti (1920-2013) and Maurizio Peciccia, is described. In this technique, patient and therapist simultaneously draw a picture on two different paper sheets, and subsequently both of them complete and transform the drawing of the other. The patient and the art-therapist - by repeating the same hand movements within this graphic dialogue - enter into the world of the other through shared unconscious communications and, like in a dream, open themselves to a previously hidden meanings. This technique differs from Winnicott’s "squiggle game", in which the therapist draws a squiggle that the child subsequently transforms into something else, while other times the child draws a picture that eventually the therapist elaborates and completes.
Keywords: Drawing, progressive mirror drawing, psychodynamic therapy of psychoses, squiggle game, art-therapy