The neurotransmitter dopamine is usually implicated in desire for food, drugs or sex – suggesting that, at a neural level, curiosity really is a form of hunger or lust. But the neurotransmitter also appears to strengthen the long-term storage of memories in the hippocampus, neatly explaining why curious people are not only more motivated to learn, but will also remember more, even when you account for the amount of work they have devoted to a subject.16
