I did cognitive neurotherapy after a series of TBIs. The therapy seemed to work on me, though, what I've heard is that it's hit and miss. Of course, there's always the chance that I'd have recovered that way anyway, but given the state my academics were in I doubt it.

For reference, the machine I used employed a bike game that supported movement across the screen. I eventually could make the bike go faster as well as up and down, nearly on command. It focused on alpha, beta, and theta waves measured by diodes stuck to your scalp. Not sure if that narrows that down, but I'm curious to know your thoughts.