RT Journal Article
SR Electronic
T1 Reward prediction error neurons implement an efficient code for reward
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 2022.11.03.515104
DO 10.1101/2022.11.03.515104
A1 Kim, Dongjae
A1 Schütt, Heiko H.
A1 Ma, Wei Ji
YR 2022
UL http://biorxiv.org/content/early/2022/11/04/2022.11.03.515104.abstract
AB We apply efficient coding principles to derive the optimal population of neurons to encode rewards from a distribution. Similar to this optimal population, dopaminergic reward prediction error neurons have a broad distribution of optimistically placed thresholds, neurons with higher thresholds have higher gain and the curvature of their responses depends on the threshold. Thus, these neurons may broadcast an efficient reward signal, not necessarily a reward prediction error.Competing Interest StatementThe authors have declared no competing interest.