Through an analysis of notions of scale, speed and temporality set forth in Brown's installation works, accompanied by an examination of some iconographic modalities (linked in particular to the question of the rapport between the sexes), Lamoureux proposes a displacement of the usual rhetorics (established on notions of psychosis and of technological apparatus) related to the artist's production. Reprinted text by Kroker (1986). Biographical notes. 23 bibl. ref