happened on 28 May 2012
<a href="http://organisms.be/index.php/valence">"Valence"</a> is an interactive visualization controlled by live brainwave monitoring. The game world is an emergent system of attractive and repulsive cells made in <a href="http://nodebox.net/code/index.php/Home">Nodebox Opengl</a>. When the player whose brain activity is being recorded relaxes (or is aroused), the cells in the game world respond..
Valence is developed by Tom De Smedt and Lieven Menschaert (Experimental Media Research Group, Sint Lucas Antwerpen School of Arts) and new media artist Ludivine Lechat, in collaboration with Imec (BE) and Holst Centre (NL).