This article describes the consequences in the field of psychiatric knowledge of the political and economic neo-liberalization model than was installed from the beginnings of the 1980s: the rise of a psychiatry based on the use of diagnostic and therapeutic algorithms; the "mathematization" of symptoms through the use of scales; the superespecialization of the psychiatrist; the dissemination of psychiatric knowledge through the reading of papers; the acceptance of the statistical consensus; the preeminence of psychopharmacology; and the consolidation of the notion of "opinion leader".