Luo Qiuling, Wang Yang, Qu Chen
Psychology Research Center, South China Normal University, Guangzhou, China.
Neuroreport. 2011 Dec 21;22(18):989-93. doi: 10.1097/WNR.0b013e32834da8ae.
Near-miss plays an important role in the development of gambling addictions. In this study, we measured the neural correlates of the process by which near-miss outcomes are evaluated in simplified, static, slot-machine gambling using event-related potentials. Analysis of event-related potentials revealed that the size of FRN (feedback-related negativity) for a near miss is between the full miss and the win. These results suggest that participants distinguish among near misses, full misses, and wins during the early evaluation phase. The subjective value and objective value of outcome were assessed separately to discuss FRN on outcome evaluation. It is suggested that FRN is mediated not only by the objective value of outcomes but also by the subjective value of feedback.
险些成功在赌博成瘾的发展过程中起着重要作用。在本研究中，我们使用事件相关电位，测量了在简化的、静态的老虎机赌博中对险些成功结果进行评估的过程中的神经关联。事件相关电位分析显示，险些成功的反馈相关负波（FRN）的大小介于完全失败和获胜之间。这些结果表明，参与者在早期评估阶段能够区分险些成功、完全失败和获胜。分别评估结果的主观价值和客观价值，以探讨结果评估中的FRN。研究表明，FRN不仅由结果的客观价值介导，还由反馈的主观价值介导。
