He was committed to the psychiatric hospital in Verona in 1947 and spent ten years in almost total isolation. Carlo's life took a turn ten years later, when he and twenty other patients were admitted to the painting atelier created by sculptors Michael Noble and Pino Castagna and psychiatrist Mario Marini. In this atelier, patients were encouraged to paint or sculpt freely.
Completely engrossed by his work, Carlo drew for eight hours a day with tempera paints and colored pencils. This routine seems to have calmed him considerably; clinical evaluations from this time comment on his good behavior. By 1964, his work had been exhibited, and he had attracted the attention of art historians associated with Jean Dubuffet and the Compagnie de l'Art Brut. ~from wikipedia
*images from here, here and here