Since the late-1970s, Canadian artist Rodney Graham has taken a conceptual approach to making art to explore modes of perception - in particular altered states of perception - and themes of location. Much of the work takes the form of loops, endlessly repeating sequences which can be as simple as a film of a heating element becoming visible as it heats up and then fading into darkness, or as complex as an interwoven narrative. Graham's work produces a kind of reverie of thought that transcends the apparent meaningfulness of the narrative. Rodney Graham has exhibited extensively worldwide.