School of Systems Science and State Key Lab of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, 100875, China.
Wangxuan Institute of Computer Technology, Peking University, Beijing, 100080, China.
Sci Rep. 2021 Nov 12;11(1):22190. doi: 10.1038/s41598-021-01523-9.
Humans and many animals have the ability to assess the confidence of their decisions. However, little is known about the underlying neural substrate and mechanism. In this study we propose a computational model consisting of a group of 'confidence neurons' with adaptation, which are able to assess the confidence of decisions by detecting the slope of ramping activities of decision neurons. The simulated activities of 'confidence neurons' in our simple model capture the typical features of confidence observed in humans and animals experiments. Our results indicate that confidence could be online formed along with the decision formation, and the adaptation properties could be used to monitor the formation of confidence during the decision making.
人类和许多动物都有评估决策信心的能力。然而，对于潜在的神经基础和机制知之甚少。在这项研究中，我们提出了一个由具有适应性的“信心神经元”组成的计算模型，这些神经元能够通过检测决策神经元的斜率来评估决策的信心。我们简单模型中的“信心神经元”的模拟活动捕捉到了在人类和动物实验中观察到的信心的典型特征。我们的结果表明，信心可以在线形成，同时形成决策，并且适应性特性可用于在决策过程中监测信心的形成。
