Edit to add:

>It turns out the most predictive out of all the factors we measured was how quickly gamers could mentally rotate things and overcome the Simon effect. The faster they were, the less likely they were to invert. People who said they sometimes inverted were by far the slowest on these tasks.

This tracks with me. I feel like games that require quick multi-dimensional movements (FPS includes) I'm dreadfully slow at. Especially if the game doesn't have the one control setup that my brain prefers, which many don't.

Also, you can make completely irrelevent analogies in the other direction too.

E.g. When you're looking at the cinema and want to move your eyes to look at the top, where do do you move them? You move them up.

Most people prefer to play where up means up, which makes complete sense.

Yet, very few people play inverted X axis...