[ajcarpy2005]

This is explained simply by setting your mind to something, selective attention, etc. I'm not sure why commenters are looking for exact science when we don't even have a working model of consciousness let alone the subconscious.

When we focus our attention on something, we are applying more brain resources towards that task, sending more energy through our neurons, etc. If sitting in an aircraft simulator makes you more alert due to the excitement of the experience and task, it makes sense that you will invest more energy into it to get a better outcome. Not too mysterious.

I disagree with those commenters who imply that there is nothing scientific about making observations without a theory to attach to it. I actually tink it's a lot more responsible than trying to force a theory that we don't have enough evidence for.