Representation of action-specific reward values in the striatum.

@article{Samejima2005RepresentationOA,
  title={Representation of action-specific reward values in the striatum.},
  author={Kazuyuki Samejima and Yasumasa Ueda and Kenji Doya and Minoru Kimura},
  journal={Science},
  year={2005},
  volume={310 5752},
  pages={1337-40}
}
The estimation of the reward an action will yield is critical in decision-making. To elucidate the role of the basal ganglia in this process, we recorded striatal neurons of monkeys who chose between left and right handle turns, based on the estimated reward probabilities of the actions. During a delay period before the choices, the activity of more than one-third of striatal projection neurons was selective to the values of one of the two actions. Fewer neurons were tuned to relative values or… CONTINUE READING
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