This work departs from Porto Alegre city situation and its Psychiatric Hospital São Pedro during half century XX, constituted from a centralized disciplinary geometry that intended to subjective adequated bodies and gestures for industrial work and for the conviovility patterns of the urban civility. Departing from this forces configuration, we pass to one genealogy of the first dispersal spasm that took these spaces, making possible their transformation by the actual pratices: in the contemporary urban space with its dispersal privated segmentations, and, by other hand, in the actual psychiatric reform, with the assistance descentralization. Passing by the moment of the Hospital and downtown overcrowding, in order to came to the first practices of emptiness from the urban center and the asylum space centrality, we accompanied the beginnings of the 1980 years, creating the condiction for the reform possibility at Rio Grande do Sul in the 1990 decade.
Psychiatric Reform; urbanism; genealogy; contemporaneity