[Childhood psychoses. Classification and clinical picture]

The classification of childhood psychoses formulated by the "Group for the Advancement of Psychiatry" (G.A.P.) is reviewed. Infantile psychoses are divided into three groups: A) Psychoses in infancy and early childhood. B) Psychoses in late childhood. C) Psychoses in the adolescence. The second part of this paper describes the different clinical pictures of infantile psychoses, including case histories.