"Psychic Space" removed the interactivity of the artist with the participants from the equation. The floor was covered in sensors and divided up into musical/sound keys. Whenever a person would take a step, a different musical note or sound was triggered. Participants would explore the environment by running, jumping, or walking around the room.
Eventually a feature was added that allowed more interactivity between the participant and the media. If a person paused after a series of steps, the computer would play those back to them in a way reminiscent of "Dueling Banjos." Another feature was added to "Psychic Space" as well, a maze program. The participants location in the room was represented on a projection screen by a dot. Krueger could get the participants to move by having the computer place another "object" on the screen and when the participants move toward it, the maze would trigger and appear on the projection screen. The maze generated was based on the participants location in the room and the maze would change to impede their progress.
Using the taxonomy, the media here could be considered a set, actor, and mirror.