Reward Prediction

Shrink Definition

Reward prediction refers to the brain's estimate of how rewarding a future experience is likely to be. Rather than simply responding after rewards occur, the brain continuously predicts future rewards based on previous learning. Those predictions influence attention, motivation, planning, and behavior long before rewards actually arrive.

Plain language

Much of motivation comes from expecting a reward, not receiving it.

Shrink Insight

Expectation often drives behavior more powerfully than reality.

Why it matters

Reward prediction helps explain: anticipation excitement procrastination gambling investing addiction habit formation motivation Expectations shape decisions every day. Sometimes accurately. Sometimes not.

Common misunderstanding

Reward prediction isn't optimism. It's an unconscious computational process continuously updated through learning.

Medical boundary

Evidence summary

Reward prediction forms one of the central ideas within computational neuroscience and reinforcement learning. Decades of research support its role in adaptive decision making.