For 10 points, name this American sculptor and video artist best known for his Self Portrait as a Fountain.
In one of this artist's works, viewers walk around a white rectangular block toward television screens placed at each corner, trying to escape the security cameras placed on each wall. This artist placed two wallboards in close proximity to form a corridor where viewers become desensitized by bright green fluorescent light. This artist of Going Around the Corner Piece and Performance Corridor placed two TVs next to each other, showing two actors who repeatedly tell the viewer that he is a "good boy" but become angrier each time. Neon signs by this artist of Good Boy Bad Boy include one with a hundred variations of the phrase "Live and Die," and one in which the words Human, Need, Desire, (*) Dream, and Hope are arranged radially. This artist appears shirtless in a photograph with a plain black background in which he lift his hands and spits water in an arc out of his mouth. For 10 points, name this American sculptor and video artist best known for his Self Portrait as a Fountain. 
In one of this artist's works, viewers walk around a white rectangular block toward television screens placed at each corner, trying to escape the security cameras placed on each wall.
Bruce Nauman