Linking Theoretical Decision-making Mechanisms in the Simon Task with Electrophysiological Data: A Model-based Neuroscience Study in Humans
Linking Theoretical Decision-making Mechanisms in the Simon Task with Electrophysiological Data: A Model-based Neuroscience Study in Humans
复制标题
将西蒙任务中的理论决策机制与电生理数据联系起来：基于模型的人类神经科学研究
DOI：
10.1162/jocn_a_00989
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发表时间：
2016
影响因子：
3.2
通讯作者：
B. Burle
中科院分区：
文献类型：
--
作者：
Mathieu Servant;C. White;A. Montagnini;B. Burle
当前决策研究的一个挑战是将简单决策的模型扩展到更复杂和更生态的选择情况。冲突任务(如Simon、Stroop、Eriksen Fanker)一直是人们感兴趣的焦点，因为它们提供了一个代表日常生活经验的决策环境。建模工作导致了一个复杂的冲突任务漂移扩散模型(DMC)，该模型实现了自动和受控决策激活的叠加。DMC已被证明能够捕获不同任务环境中行为冲突影响的多样性。这项研究将DMC预测与EEG和EMG测量相结合，以测试一组关联命题，这些命题指定了西蒙任务中涉及的理论决策机制与大脑活动之间的关系。我们的结果与初级运动皮质中叠加的决定变量的表示一致。在反应激动肌的肌电活动中也观察到决策变量。这些发现为人类决策的神经生理学提供了新的见解。作为回报，它们为DMC模型框架提供支持。
A current challenge for decision-making research is in extending models of simple decisions to more complex and ecological choice situations. Conflict tasks (e.g., Simon, Stroop, Eriksen flanker) have been the focus of much interest, because they provide a decision-making context representative of everyday life experiences. Modeling efforts have led to an elaborated drift diffusion model for conflict tasks (DMC), which implements a superimposition of automatic and controlled decision activations. The DMC has proven to capture the diversity of behavioral conflict effects across various task contexts. This study combined DMC predictions with EEG and EMG measurements to test a set of linking propositions that specify the relationship between theoretical decision-making mechanisms involved in the Simon task and brain activity. Our results are consistent with a representation of the superimposed decision variable in the primary motor cortices. The decision variable was also observed in the EMG activity of response agonist muscles. These findings provide new insight into the neurophysiology of human decision-making. In return, they provide support for the DMC model framework.