Nieuwenhuis Sander, Yeung Nick, Holroyd Clay B, Schurger Aaron, Cohen Jonathan D
Department of Psychology, Princeton University, NJ, USA.
Cereb Cortex. 2004 Jul;14(7):741-7. doi: 10.1093/cercor/bhh034. Epub 2004 Mar 28.
A recent study has reported the observation in humans of an event-related brain potential component that is sensitive to the value of outcomes in a gambling task. This component, labeled medial frontal negativity (MFN), was most pronounced following monetary losses as opposed to monetary gains. In this study, we investigate the relationship between the MFN and the error-related negativity (ERN), a component elicited by feedback indicating incorrect choice performance. We argue that the two components can be understood in terms of a recently proposed theory that predicts the occurrence of such scalp negativities following stimuli that indicate that ongoing events are worse than expected. The results from two experiments using a gambling task demonstrate that the sensitivity of the MFN/ERN to the utilitarian and performance aspect of the feedback depends on which aspect is most salient. The results are consistent with the view that the two components are manifestations of the same underlying cognitive and neural process.
最近一项研究报告称，在人类中观察到一种与事件相关的脑电成分，该成分对赌博任务中结果的价值敏感。这一成分被标记为内侧额叶负波（MFN），在金钱损失后比金钱收益时更为明显。在本研究中，我们调查了MFN与错误相关负波（ERN）之间的关系，ERN是由表明选择表现错误的反馈所引发的一种成分。我们认为，这两种成分可以根据最近提出的一种理论来理解，该理论预测在表明正在进行的事件比预期更糟的刺激之后会出现这种头皮负波。两项使用赌博任务的实验结果表明，MFN/ERN对反馈的功利性和表现方面的敏感性取决于哪个方面最为突出。这些结果与这两种成分是同一潜在认知和神经过程的表现这一观点一致。
