In this well-known early tape, Jonas manipulates the grammar of the camera to create the sense of a grossly disturbed physical space. The space functions as a metaphor for the unstable identity of the costumed and masked female figure roaming the screen, negotiating the rolling barrier of the screen’s bottom edge. “[Making] use of a jarring rhythmic technique to develop a sense of fragmentation, Vertical Roll uses a common television set malfunction of the same name to establish a constantly shifting stage for the actions that relate both to the nature of the image and to the artist’s projected psychological state.”