Derry-born artist Willie Doherty, 44, presents a twoscreened video work inspired by the troubles in Northern Ireland. Called Re-Run, it shows looped film of a man running endlessly across a bridge.
Ms Stout said: "Look at one screen and he runs towards you, the other and you are pursuing him. It works on many levels, but its specific reference is about living in a divided society."
The final room at the Tate Britain exhibition is devoted to 40-year-old nominee Anya Gallaccio, who presents works designed to rot before your eyes.
In one piece, entitled preserve "beauty", Ms Gallaccio has pressed 2,000 red gerbera daisies against the Tate's wall with a huge piece of Perspex.
As the exhibition continues, these flowers will brown, wither and decay. Some may find this year's £20,000 Turner Prize exhibitors profound and moving, while lots of others will, inevitably, think it just a little absurd.
The exhibition opens at Tate Britain tomorrow. The winner will be announced on 7 December.