The Tetris Effect has been discussed on Dream Views.

Wikipedia article:

The Tetris effect occurs when an activity to which people devote sufficient time and attention begins to overshadow their thoughts, mental images, and dreams.

http://en.wikipedia.org/wiki/Tetris_effect

and there have been discussions about how this effect (and the effect of other games) could be used as an induction technique.

It has also been pointed out that the Tetris Effect only works for a short time - I think this may be because the game remains a novel task to your brain for only a short period of time. Then, (total speculation here) I guess the activity enters your long-term memory and is stored differently by the brain.

For example, in the early days of doing a new job, the tasks of the new job often become involved in your daydreams, HIs and dreams. But after a certain time, this stops occurring - regardless of how hard you work on that task during the day.

Novelty and Reality Checking

So this has got me thinking that reality-checking in the same way, regularly, ad nauseum, can only be effective up to a certain point - during the early days of RCing, when it's still a novelty.

The idea is, for RCing to work in the longer term, you'd have to introduce an element of novelty to your RCing. Or introduce a repetitive element. You'd have to keep finding ways to make the RCing for it to work.