The conceptof desire is central to Lacan's theory and practice, even if it is not among the four fundamental concepts of psychoanalysis—unconscious, Trieb, repetition, transference, it can be understood that it underlies all of them. The concept of desire is inherent to the ethics of psychoanalysis that Lacan formulated, therefore it is especially concerned with a practice whose operation is defined by the function of analyst's desire. However, this central thesis of Lacan has been called into question with regard to psychosis. Some Lacanian scholars have derived from the foreclosure of the Name-of-the-Father a lack of desire in psychosis. This paper aims to discuss the relative absence of references to the concept of psychotic desire in Lacanian schools. The debate is relevant because Lacan did exclude neither desire nor psychosis from his conception of analytic treatment. It is frequent that in the transmission of the approach of this type of cases into the Lacanian schools, the concept of desire is not used, but rather the consequences of its absence are emphasized (De Battista, 2012). For example, in two of the latest publications compiled by Miller, where there are more than 20 clinical cases of psychosis treated by Lacanian analysts, the concept of desire is not evoked to think about the changes caused by the cure. In the clinical cases where this concept is mentioned, the authors highlight that desire has not operated (cf. Borie, 2011; Dewambrechies-La Sagna, 2011; Di Ciaccia, 2011; Zerghem, 2011; Klotz, 2012; Magnin et al., 2012). In the argumentation of these authors, this non-operational desire would go hand in hand with intrusive and invasive phenomena that would account for a delocalized jouissance, whose restraint would depend on its fixation through identifications, delusional metaphors or writing practices, introducing a limitation of jouissance (Maleval, 2000; Soria Dafunchio, 2008; Miller, 2011, 2012). Other authors claim that desire would not be absent in psychosis (Lombardi, 1992; Soler, 2004), nonetheless it is restricted to paranoia, declaring its abolition in schizophrenia (Quinet, 2006). However, even in those cases where psychotic desire is considered, the affirmation of its existence does not go hand in hand with a clarification of its operation in the cure. The authors again resort to the idea of an invasion of jouissance, which should be limited (Soler, 1987; Quinet, 2006; Soria Dafunchio, 2008; Miller, 2011, 2012; Redmond, 2013). The notion of limitation of jouissance is that which is most frequently used to account for the analytical treatment of psychosis (Maleval, 2000). In view of the current state of affairs with regard to the subject treated, the following questions deserve—in my view—an investigation. Firstly, Is desire the exclusive patrimony of those clinical types derived from the pere-version (neurosis/perversion)? What would be the Lacanian arguments to sustain the absence of desire in psychosis? Secondly and according to my hypothesis of the importance of psychotic desire, which kind of desire would operate in psychosis?
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