EDIT: Argh, I really failed to read this closely. Rewriting...
Just saw this over at Not Exactly Rocket Science. Chessboxing (or similar games) could help train automatic emotion regulation. Obviously this should generalize. Has this - by which I mean finding things that can help train automatic emotion regulation - been done before? This doesn't seem to be anything new - and this is extrapolation, not experimental results - but it's a neat application.
I confess that I stared confusedly at the page for a few seconds while I tried to determine the meaning of 'chessboxing' from AI-boxing. Then it clicked. :P
You're better than me, then; I saw the title, thought "ugh, more AI [censored]", and moved on. Two days later (ie right now) I touched on chessboxing during a random train of thought, and I finally processed it correctly.