7 ways games reward the brain

We're bringing gameplay into more aspects of our lives, spending countless hours — and real money — exploring virtual worlds for imaginary treasures. Why? As Tom Chatfield shows, games are perfectly tuned to dole out rewards that engage the brain and keep us questing for more.

Tom Chatfield thinks about games — what we want from them, what we get from them, and how we might use our hard-wired desire for a gamer's reward to change the way we learn.