Dopamine acts within four different brain networks, two of which are relevant to divergent and convergent thinking.

“Rather, what you're about to learn is truly incredible. What it is we're going to talk about one single molecule-- dopamine, which is a molecule most typically associated with motivation and desire and drive and feelings of pleasure in some cases. But that actually resides within four different networks in the brain. Today we're going to talk about two of those networks. And dopamine acting in one network directly underlies divergent thinking. Whereas dopamine in another brain network underlies convergent thinking.”