"(Perception is) The Master of Space" is a variation of "Very Nervous System". String, hanging from the ceiling at 1/2 meter intervals, was used to establish the edges of the perceptual field of the system's camera and its shadows. The camera was set up near the ceiling and angled so that the top of its field corresponded to the floor at the entrance to the space. As one walked into the installation, one was in effect increasingly submerged in the interactive space.
Sounds included heartbeats and breathing that increased pace with continued interaction, pebbles and waves, wind, footsteps recorded within the space. As one approached the camera at the apex of the two walls of string, the intensity of the interaction increased. Certain sounds were mapped to specific areas of the space. (source: http://homepage.mac.com/davidrokeby/mos.html)