Lateral habenula neurons signal errors in the prediction of reward information.
Lateral habenula neurons signal errors in the prediction of reward information.
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DOI:
10.1038/nn.2902
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发表时间:
2011-08-21
影响因子:
25
通讯作者:
Hikosaka O
中科院分区:
文献类型:
--
作者:
Bromberg-Martin ES;Hikosaka O
Humans and animals have a remarkable ability to predict future events, which they achieve by persistently searching their environment for sources of predictive information. Yet little is known about the neural systems that motivate this behavior. We hypothesized that information-seeking is assigned value by the same circuits that support reward-seeking, so that neural signals encoding conventional “reward prediction errors” include analogous “information prediction errors”. To test this we recorded from neurons in the lateral habenula, a nucleus which encodes reward prediction errors, while monkeys chose between cues that provided different amounts of information about upcoming rewards. We found that a subpopulation of lateral habenula neurons transmitted signals resembling information prediction errors, responding when reward information was unexpectedly cued, delivered, or denied. Their signals evaluated information sources reliably even when the animal’s decisions did not. These neurons could provide a common instructive signal for reward-seeking and information-seeking behavior.
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