Martin Bürgy: The Concept of Psychosis: Historical and Phenomenological Aspects. Schizophr Bull. 2008 Nov; 34(6): 1200–1210. PMID 18174608. Zitat: In 1841, Canstatt introduced the concept of psychosis into the psychiatric literature ... und For a considerable length of time, Feuchtersleben was credited with first employing the term psychosis in 1845.