Beyond the Average View of Dopamine.
Trends in cognitive sciences(2020)
摘要
Dopamine (DA) responses are synonymous with the 'reward prediction error' of reinforcement learning (RL), and are thought to update neural estimates of expected value. A recent study by Dabney et al. enriches this picture, demonstrating that DA neurons track variability in rewards, providing a readout of risk in the brain.
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