by Carlos Castellanos
BodyDaemon is a bio-responsive Internet server. Readings taken from a participant's physical states, as measured by custom biofeedback sensors, are used to power and configure a fully-functional Internet server. For example, more or fewer socket connections are made available based on heart rate, changes in galvanic skin response (GSR) can abruptly close sockets, and muscle movements (EMG) can send data to the client. Other feature's such as logging can be turned on or off depending on a combination of factors. BodyDaemon also includes a client application that makes requests to the BodyDaemon server. The client requests and server responses are sent over a "persistent" or open socket. The client can thus use the data to continuously visualize, sonify or otherwise render the live bio-data. This project is part of larger investigations focusing on the development of protocols for the transfer of live physiological and biological information across the Internet.
BodyDaemon represents the early stages of investigations into the viability of systems that alter their states based off of a person's changing physiological states and intentions - with the ultimate goal of accommodating the development of emergent states of mutual influence between human and machine in a networked ecosystem.
BodyDaemon will be exhibited at ZeroOne/ISEA2006 this summer.
The BodyDaemon System
Once the server is running, it is partly configured by the participant's physiological readings. For example the higher the heart rate, the more simultaneous socket's the client can accept, the higher the skin conductance, the lower the socket timeout (in fact sudden surges in skin conductance levels will take the socket timeout to nearly zero, effectively closing down the server for any potential new client connections). If the overall levels fall below what is considered the "appropriate conditions" the server will close all current connections and shut down. It will then return to waiting for the right conditions in which to spawn again.
Basic System Diagram
Below are images and video of BodyDaemon exhibition from the SJSU White Gallery, featuring clients by Aaron Siegel, John Bruneau and Carlos Castellanos (the sound client)
For more information on this project visit the following web sites: