Four walls of interwoven metal strips symbolise the skin; at the four corners are openings whereby the inner «forest of the nerves» can be accessed. Thousands of rubber hoses hang in close array, there is a constant murmuring on the subject of pain, you can hear the heartbeat. Small loudspeakers play recordings by patients and medics, talking in fragmentary fashion of their experiences of pain. Video boxes in the floor show tiny human figures with their reflexes and behavioural patterns.