A Biased Bayesian Inference for Decision-Making and Cognitive Control.

A Biased Bayesian Inference for Decision-Making and Cognitive Control.
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DOI:
10.3389/fnins.2018.00734
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发表时间:
2018
影响因子:
4.3
通讯作者:
Matsumoto K
Matsumoto K
中科院分区:
医学2区
文献类型:
--
作者:
Matsumori K;Koike Y;Matsumoto K

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尽管经典的决策研究假设受试者以贝叶斯最优方式行事,但导致决策偏差的次最优性目前仍处于争论之中。在这里,我们提出了一种基于指数偏差贝叶斯推理的综合方法,包括不同偏差水平下的各种决策和概率判断。我们在有偏贝叶斯推理的二维偏差参数空间(先验和似然)中安排了三种主要的参数估计方法。然后,我们讨论了基于神经连接权重变化的有偏差贝叶斯推理的神经实现,我们将其视为泄漏/不稳定神经积分器和概率总体编码的结合。最后,我们讨论了可能调节偏见水平的认知控制机制。
Although classical decision-making studies have assumed that subjects behave in a Bayes-optimal way, the sub-optimality that causes biases in decision-making is currently under debate. Here, we propose a synthesis based on exponentially-biased Bayesian inference, including various decision-making and probability judgments with different bias levels. We arrange three major parameter estimation methods in a two-dimensional bias parameter space (prior and likelihood), of the biased Bayesian inference. Then, we discuss a neural implementation of the biased Bayesian inference on the basis of changes in weights in neural connections, which we regarded as a combination of leaky/unstable neural integrator and probabilistic population coding. Finally, we discuss mechanisms of cognitive control which may regulate the bias levels.
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