Theoretical origin and progress of the representation of reward prediction errors by dopamine signals
The ability to seek natural rewards is crucial for the survival and reproduction of humans and higher animals.The activity of dopaminergic neurons in the brain undergoes significant enhancement during the processing of reward information,leading to the generation of dopamine signals.The hedonia,incentive salience,and reward prediction error hypothesis have successively been proposed,progressively revealing the significance and implications of dopamine signals.This progress has provided profound insights for neuroscience,psychology,and artificial intelligence research,and its achievements have fundamental scientific value.This article briefly reviews the development of these hypotheses,introduces how the reward prediction error hypothesis is powerful in explaining interdisciplinary findings and accurately revealing the important functions of dopamine signals,offers the latest findings that enriched and expanded this hypothesis,and provides a preliminary outlook on possible directions for further research.
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