Curiosity and Dopamine

"The lesson is that our desire for abstract information – this is the cause of curiosity – begins as a dopaminergic craving, rooted in the same primal pathway that also responds to sex, drugs and rock and roll. This reminds me of something Read Montague,  a neuroscientist at Baylor College of Medicine, told me a few years ago: “The guy who’s on hunger strike for some political cause is still relying on his midbrain dopamine neurons, just like a monkey getting a sweet treat,” he said. “His brain simply values the cause more than it values dinner…You don’t have to dig very far before it all comes back to your loins.”
-Jonah Lehrer