In the late '60s Turrell studied what's called a Ganzfeld effect with artist Robert Irwin and psychologist Edward Wortz. The Ganzfeld phenomenon is that which pilots experience when trying to navigate dense fog; they begin to lose perception of direction, color, and even gravity. Though the trio's original conception of recreating a Ganzfeld effect was stopped short. Turrell returned to the idea later this one as part of a 2011 exhibition called See! Color! in Jarna, near Stockholm. As this work shifts from red to blue, the viewer becomes disoriented, as that range of color disrupts the retinas.