Conceptual artist Lisa Park has been experimenting with a specialized device called a NeuroSky EEG headset that helps transform brain activity into streams of data that can be manipulated for the purposes of research, or in this case, a Fluxus-inspired performance art piece titled Euonia (Greek for “beautiful thought”).
Composer and experimental musician Alvin Lucier had a somewhat similar performance called Music for Solo Performer back in 1965.