Drawing is an excellent means of investigating the personality of identical twins. It gives an overt expression of the difficulty of arriving at the consciouness of the self, so frequently found with these persons. Some of this article's drawings illustrate this fact and show the persistence of duality and confusion.
The strength of the tie to the other twin, the wish for indépendance from him, the dominance of one subject in the pair are also made manifest.
Furthermore, the existence of some affective reactions toward the family and the frequent opposition between the types of behavior, found in the two members of a same pair toward the auter world, are shown.