In 1970 Tom Sherman made his first video work. He hyperventilated until he passed out in a video performance. He did this performance three times in the early 1970s. The third performance was documented in a 16mm film by Andrew Lugg (released as Trace by Lugg in 1972). The original 1970 video performance recording disappeared in 1972-73 in Toronto. Having described the original video recording many times and being frustrated by the missing documentation, Sherman decided to remake the video performance in its medium of origin. On January 11, 2011, forty years after the original performance, Sherman once again hyperventilated until he passed out for a video recording. Hyperventilation 2011 features the conclusion of the two hyperventilation performances conducted by the artist four decades apart.