Confidence-Related Decision Making
Confidence-Related Decision Making
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DOI：
10.1152/jn.01068.2009
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发表时间：
2010-07-01
影响因子：
2.5
通讯作者：
Deco, Gustavo
中科院分区：
文献类型：
--
作者：
Insabato, Andrea;Pannunzi, Mario;Deco, Gustavo
Insabato A，Pannunzi M，Rolls et，Deco G.信心相关决策。《神经生理学杂志》104：539-547,2010。2010年4月14日首次出版；DOI：10.1152/jn.01068.2009。记录到的神经元在它们的放电率中反映出对一个决定的信心。在这里，我们展示了这是如何作为决策的综合与着火吸引子网络模型中的一个紧急性质出现的。吸引子网络具有对每一个可能的选择做出反应的神经元群体，每个神经元群体都因该选择的证据而产生偏见，并且吸引子状态之间存在竞争，直到一个群体赢得竞争，并以代表决策的高激发结束。由单个神经元的随机尖峰时间产生的噪声使决策成为概率。我们还证明了第二个吸引子网络可以基于对第一个决策的置信度来做出决策。这个系统得到决策过程中记录的神经元反应的支持，并对决策过程中记录的神经元活动进行预测，当决定是继续第一个决定还是放弃试验并重新开始时，将发现这些神经活动。这项研究展示了如何在大脑中进行监控，这对理解认知功能有很多启示。
Insabato A, Pannunzi M, Rolls ET, Deco G. Confidence-related decision making. J Neurophysiol 104: 539-547, 2010. First published April 14, 2010; doi:10.1152/jn.01068.2009. Neurons have been recorded that reflect in their firing rates the confidence in a decision. Here we show how this could arise as an emergent property in an integrate-and-fire attractor network model of decision making. The attractor network has populations of neurons that respond to each of the possible choices, each biased by the evidence for that choice, and there is competition between the attractor states until one population wins the competition and finishes with high firing that represents the decision. Noise resulting from the random spiking times of individual neurons makes the decision making probabilistic. We also show that a second attractor network can make decisions based on the confidence in the first decision. This system is supported by and accounts for neuronal responses recorded during decision making and makes predictions about the neuronal activity that will be found when a decision is made about whether to stay with a first decision or to abort the trial and start again. The research shows how monitoring can be performed in the brain and this has many implications for understanding cognitive functioning.