 During the latter part of his career, he was associated with Hôpital Sainte-Anne.With his mentor, Paul Sérieux (1864–1947), he contributed on psychiatric publications such as "Les Folies raisonnantes" (1909) and " Les Psychoses à base d'interprétations délirantes".With Sérieux, he described a type of non-schizophrenic, paranoid psychosis referred to as "".