FIGURE 12-1 Sensory Deprivation Experimenters record the EEG of a participant lying on a bed in a dimly lit environmental cubicle 24 hours a day, with time out only for meals and bathroom breaks. A translucent plastic visor restricts the participant’s vision; a U-shaped pillow and the noise of a fan and air conditioner limit hearing. Cotton gloves and long cardboard cuffs restrict the sense of touch.

Information from W. Heron (1957). The Pathology of Boredom. Scientific American, 197(4), p. 52.