Plugging right in to that eerie "they're watching me" feeling you're supposed to get from normal portrait paintings, Opto-Isolator is an artwork that takes the sensation into the scary, robotic 21st Century. Its realistic-looking eyeball actually responds to an onlooker's gaze with a bunch of human-like movements, including coy side-glances and blinks. If the gallery doesn't creep you out enough, the video certainly will.