Recently an interesting article caught my eye, how Japanese scientists were able to make a thought-controlled wheelchair that moves according to what you think. It is apparently very fast and responsive, and 95% accurate.
I wonder; is this a viable option to be explored for a new way to control your character in a game, for a whole new level of immersion?
Personally I think the idea sounds really, really interesting.
(The article is below for your perusal.)