Perversely Interactive System, by Lynn Hughes and Simon Laroche, puts the spectator into relation with a virtual other whose image (s)he controls through a biofeedback device.

The system is made of a large scale video projection and a wireless biofeedback handset that monitors galvanic skin resistance (variation in sweat gland activity that measures the level of stress).

The video projection begins with the image of a woman with her back turned. As the participant learns to reduce his or her stress / sweat level, the woman on the screen gradually turns around, and advances towards the participant.

So in this piece, excitation or effort hinders, rather than promotes, successful interaction. If the participant’s tension level rises (often due to the excitement of success) then the woman stops.

Till December 12 at the FILE festival in Sao Paulo.