This article seeks to contribute to the historical research related to the formation of the psychological thought in Brazil. For this, we analyze Osório Cesar's writings in order to make a synthesis of his theories about the artistic manifestations, especially those associated to the production of the Juqueri Hospital patients from 1925 to 1955. We articulated the emergent ideas in his writings with research done in his own library. We noted the importance of these psychiatrist thoughts, which defined a precise observational method of the works of art in its bipartite constitution, supporting and spreading psychoanalytic ideas.
Psychological ideas; Psychoanalysis; Aesthetics; Psychology of art