Adaptive coding of reward prediction errors is gated by striatal coupling.

  title={Adaptive coding of reward prediction errors is gated by striatal coupling.},
  author={Soyoung Q. Park and Thorsten Kahnt and Deborah Talmi and J{\"o}rg Rieskamp and Raymond J. Dolan and Hauke R. Heekeren},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={109 11},
To efficiently represent all of the possible rewards in the world, dopaminergic midbrain neurons dynamically adapt their coding range to the momentarily available rewards. Specifically, these neurons increase their activity for an outcome that is better than expected and decrease it for an outcome worse than expected, independent of the absolute reward magnitude. Although this adaptive coding is well documented, it remains unknown how this rescaling is implemented. To investigate the adaptive… CONTINUE READING
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