There’s a concept central to Foucault’s work that has so entered the common theoretical discourse that I’m having trouble locating an original source for it. The concept is that institutions, practices, discourses produce subjects that “fit” them. People have called this a precursor to current “performativity” theories. Julia Paley documents a similar phenomenon with respect to polling and the “choice-making citizen” in Chile; I made a kind of similar argument with respect to elections in southern Africa; I’m sure there are lots of other examples. The concept is Durkheimian in a sense too (the collectivity produces the character of its individuals), but what I’m looking for right now is the Foucault version. Any leads? Thanks.