In the laser triggered version of Periferal Visions a video projection is ceiling mounted and projects an image on the floor. Sound emanates from four speakers. Four laser beams are installed on the corners of the floor projection. A scrolling text sequence prompts viewers to walk under the video beam and trigger sequences. When viewers intersect the laser beams, messages are sent to a computer and a series of video and sound sequences are triggered. As viewers move under the projection they create an ephemeral still and moving image that reliant on viewer participation.