Installation Art quote

Dispite the vast number of installations produced in the last 40 years, the majority of hte examples features here date from 1965 to 1975, the decade in which installation art come of age.This is because it is at this time that the main theoretical impulses behind installation art come into focus: ideas of heightened immediacy, of the decentred subject (Barthes, Foucault, Lacan, Derrida), and of activated spectatorship as political in implication.