This sounds a lot like EEG neurofeedback. Neurofeedback has been shown to be extremely effective for treatment of tic disorders.

The relevant brainwave is the SMR rhythm, which is deep in the brain. The neurofeedback games target the SMR rhythm, and the player has to slowly raise his/her SMRs in order to play the game. Over a few sessions, the SMRs train themselves into a more normal rhythm, and the tics go away.

I know because I saw it happen for my son. Tic free and happy.