Tie Fighter demonstrator

The demonstrator enhances the Neurofeedback BCI with a motivating visual feedback : a 3D spaceship in a hangar, that can be lifted thanks to brain activity. You will find it in share/openvibe-scenarios/bci/tie-fighter.

• tie-fighter-freetime.xml: This scenario replays a MI session and shows the real-time feedback the user was given during the session. The feedback is presented through signal displays : one for the brain activity on the Cz electrode, and one for the band power in the beta activity,related to (imagined) feet movement.

The scenario communicates with the vr-demo through VRPN, triggering instructions ("Move your feet", "Stop") and providing feedback value (that determines the altitude of the spaceship in the 3D scene.

Please note that the Crop and Simple DSP configuration is based on a calibration session, that computed the Mean and Variance of Beta activity on Cz on a 30 sec inactivity phase.

Fig.1 The Use-the-Force BCI.