Representation of confidence associated with a decision by neurons in the parietal cortex.
Representation of confidence associated with a decision by neurons in the parietal cortex.
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DOI：
10.1126/science.1169405
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发表时间：
2009-05-08
期刊：
影响因子：
--
通讯作者：
Shadlen MN
中科院分区：
文献类型：
--
作者：
Kiani R;Shadlen MN
对决策的信心程度提供了对预期结果的分级和概率评估。尽管灵长类动物感知决策的神经机制已经被广泛研究，但对选择确定性的机制知之甚少。在这里，我们展示了代表决策形成的相同神经元对决策的确定性进行编码。恒河猴可以跨越一系列困难，决定随机点移动的方向。他们因为正确的决定而得到奖励。在一些试验中，在看到刺激后，猴子可以选择放弃方向决定，以获得一个小而确定的奖励。猴子们用一种方式来执行这个选项，以显示它们的确定程度。顶叶皮层的神经元代表了方向决定的形成和选择退出决定的确定性程度。
The degree of confidence in a decision provides a graded and probabilistic assessment of expected outcome. Although neural mechanisms of perceptual decisions have been studied extensively in primates, little is known about the mechanisms underlying choice certainty. Here, we show that the same neurons that represent formation of a decision encode certainty about the decision. Rhesus monkeys made decisions about the direction of moving random dots, spanning a range of difficulties. They were rewarded for correct decisions. On some trials, after viewing the stimulus, the monkeys could opt out of the direction decision for a small but certain reward. Monkeys exercised this option in a manner that revealed their degree of certainty. Neurons in parietal cortex represented formation of the direction decision and the degree of certainty underlying the decision to opt out.
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影响因子：
16.2
作者：
Beck JM;Ma WJ;Kiani R;Hanks T;Churchland AK;Roitman J;Shadlen MN;Latham PE;Pouget A
通讯作者：
Pouget A
影响因子：
64.8
作者：
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通讯作者：
Mainen, Zachary F.
影响因子：
6.7
作者：
AUDLEY, RJ
通讯作者：
AUDLEY, RJ
影响因子：
25
作者：
Kim, JN;Shadlen, MN
通讯作者：
Shadlen, MN
影响因子：
5.3
作者：
Izquierdo, A;Suda, RK;Murray, EA
通讯作者：
Murray, EA