2min chapter

The Intelligence from The Economist cover image

Didn’t protect or serve: Tyre Nichols’s killing

The Intelligence from The Economist

CHAPTER

Is There a New Model of Prediction Making Machines?

50 years ago, scientists thought that animals brains were prediction making machines. But a new model suggests they are actually computing the difference between what they predicted and what actually happened. Dopamine's job is to say when a reward or an event is meaningful enough for you to look around for a possible cause.

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