[The illness concept in adolescent psychiatry].

This paper introduces some important views on the clinical entities of the adolescent psychiatry in Japan. Shimizu shows the transitional region between neurosis, schizophrenia and normal. Murakami's new classification tells the relationship among the psychiatric disorders, especially about the borderline disorder. Hatotani's scheme deals with the atypical psychoses very well. According to the idea of Griesinger's "Einheitspsychose" arranges my symptomatic picture several ambiguous symptoms of the adolescent psychiatric disorders. In this picture we can understand the meaning of the borderline disorder. At last I give the catastrophic model of psychiatric disorders.