Separate populations of neurons in ventral striatum encode value and motivation.
Separate populations of neurons in ventral striatum encode value and motivation.
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DOI:
10.1371/journal.pone.0064673
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Roesch MR
中科院分区:
文献类型:
--
作者:
Bissonette GB;Burton AC;Gentry RN;Goldstein BL;Hearn TN;Barnett BR;Kashtelyan V;Roesch MR
Neurons in the ventral striatum (VS) fire to cues that predict differently valued rewards. It is unclear whether this activity represents the value associated with the expected reward or the level of motivation induced by reward anticipation. To distinguish between the two, we trained rats on a task in which we varied value independently from motivation by manipulating the size of the reward expected on correct trials and the threat of punishment expected upon errors. We found that separate populations of neurons in VS encode expected value and motivation.
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