期刊
JOURNAL OF NEUROPHYSIOLOGY
卷 104, 期 5, 页码 2359-2374出版社
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/jn.00571.2010
关键词
-
资金
- Gottlieb-Daimler- and Karl Benz-Foundation
- Oxford Centre for Computational Neuroscience
- McDonnell Centre for Cognitive Neuroscience at Oxford University
- Spanish Ministry of Science
- ICREA Funding Source: Custom
Rolls ET, Grabenhorst F, Deco G. Decision-making, errors, and confidence in the brain.. J Neurophysiol 104: 2359-2374, 2010. First published September 1, 2010; doi:10.1152/jn.00571.2010. To provide a fundamental basis for understanding decision-making and decision confidence, we analyze a neuronal spiking attractor-based model of decision-making. The model predicts probabilistic decision-making with larger neuronal responses and larger functional magnetic resonance imaging (fMRI) blood-oxygen-level-dependent (BOLD) responses on correct than on error trials because the spiking noise-influenced decision attractor state of the network is consistent with the external evidence. Moreover, the model predicts that the neuronal activity and the BOLD response will become larger on correct trials as the discriminability Delta I increases and confidence increases and will become smaller as confidence decreases on error trials as Delta I increases. Confidence is thus an emergent property of the model. In an fMRI study of an olfactory decision-making task, we confirm these predictions for cortical areas including medial prefrontal cortex and the cingulate cortex implicated in choice decision-making, showing a linear increase in the BOLD signal with Delta I on correct trials, and a linear decrease on error trials. These effects were not found in a control area, the orbitofrontal cortex, where reward value useful for the choice is represented on a continuous scale but that is not implicated in the choice itself. This provides a unifying approach to decision-making and decision confidence and to how spiking-related noise affects choice, confidence, synaptic and neuronal activity, and fMRI signals.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据