Gamasutra reports a startup called Emotiv is working on a mind control system for games. It's a helmet which can detect dozens of thoughts and emotion and correspond them to in-game actions:
The “Project Epoc” headset looks similar to a bicycle helmet and uses technology similar to that employed in the medical industry for electroencephalography. Emotiv claim that games designed using the Emotiv Development Kit (EDK) could allow players to move objects on screen simply by thinking about the actions, with the device apparently able to distinguish between thoughts such as “push”, “pull” and “spin”.
The EDK connects the headset to three different software programs, with the Expressiv application analyzing a player’s facial expressions. Affectiv measures emotional states and Cognitiv detects conscious thoughts.
No pricing for the EDK has yet been announced, but the company claims the headset will be available to consumers in 2008. Although the technology will be initially aimed at the games industry Emotiv also plan to sell variations for use in medicine, security, market research, accessibility design and interactive televison.