Very Nervous System is the third generation of interactive sound installations which Rokeby has created. In these systems, video cameras, image processors, computers, synthesizers and a sound system are used to create a space in which the movements of one's body create sound and/or music. It has been primarily presented as an installation in galleries but has also been installed in public outdoor spaces, and has been used in a number of performances.
The installation could be described as a sort of instrument that you play with your body but that implies a level of control which Rokeby is not particularly interested in. He is interested in creating a complex and resonant relationship between the interactor and the system. (source: http://homepage.mac.com/davidrokeby/vns.html)