Representation of action-specific reward values in the striatum.

by: K Samejima, Y Ueda, K Doya, M Kimura

Science, Vol. 310, No. 5752. (25 November 2005), pp. 1337-1340.

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Abstract

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 action choice. These results suggest representation of action values in the striatum, which can guide action selection in the basal ganglia circuit.

@article{citeulike:415715, abstract = {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 action choice. These results suggest representation of action values in the striatum, which can guide action selection in the basal ganglia circuit.}, address = {Department of Computational Neurobiology, ATR Computational Neuroscience Laboratories, 619-0288 Kyoto, Japan. samejima@lab.tamagawa.ac.jp}, author = {Samejima, K. and Ueda, Y. and Doya, K. and Kimura, M. }, citeulike-article-id = {415715}, doi = {10.1126/science.1115270}, issn = {1095-9203}, journal = {Science}, keywords = {basalganglia, choice, learning, reinforcement, reward, striatum}, month = {November}, number = {5752}, pages = {1337--1340}, posted-at = {2007-12-17 18:06:12}, priority = {2}, title = {Representation of action-specific reward values in the striatum.}, url = {http://dx.doi.org/10.1126/science.1115270}, volume = {310}, year = {2005} }

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TY - JOUR ID - citeulike:415715 L3 - citeulike-article-id:415715 TI - Representation of action-specific reward values in the striatum. JF - Science VL - 310 IS - 5752 SP - 1337 EP - 1340 AD - Department of Computational Neurobiology, ATR Computational Neuroscience Laboratories, 619-0288 Kyoto, Japan. samejima@lab.tamagawa.ac.jp SN - 1095-9203 N2 - 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 action choice. These results suggest representation of action values in the striatum, which can guide action selection in the basal ganglia circuit. KW - basalganglia KW - choice KW - learning KW - reinforcement KW - reward KW - striatum AU - Samejima, K AU - Ueda, Y AU - Doya, K AU - Kimura, M PY - 2005/11/25/ UR - http://dx.doi.org/10.1126/science.1115270 ER -

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