Figure 7: Video still from documentation of Watching and Dreaming (2001: A Space Odyssey). The left and right images differ significantly because either the lack of arousal (change of visual stimulus) or darkness of the scene has lead the system to start mind-wandering or dreaming, respectively.
The image is clearly divided down the middle, creating a left side and a right side. Left side: a bright yellow light surrounded by a glowing red halo of light, both set in the center of a large, shiny black circle. It is a mechanical "eye." Right side: splotches of color that do not clearly represent specific scenes, but some warm colors and textures of desert landscape are emphasized. There are concentric circles of yellow and red with some subtle blue halos around them. These circles very slightly resemble the mechanical eye on the left.

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