I am not familiar with the neuroscience of what's going on, but a plausible story is that the areas of the brain corresponding to the examples he's just seen are activated.

This made me cringe. "I don't know the relevant science, but instead of looking it up, let me speculate anyway." To be fair, a lot of posts on LW probably do this, but few state it so explicitly. I'm only singling you out because you were so upright about it, which isn't how it should work. So I'm not downvoting you because of that.

The advice given at the end of this post seemed plausible to me, but the initial speculation about how the brain works seemed speculative and unsupported, and didn't really add anything to the post itself. I think the post could be improved by deleting everything between the initial paragraph and the one that starts "The fundamental thing you should do..."