Zhou Xinyu, Zeng Yuan, Wen Yatong, Dong Xinwen, Gola Mateusz, Li Yonghui
1State Key Laboratory of Cognitive Science and Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
2Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
J Behav Addict. 2025 Jun 3;14(2):805-816. doi: 10.1556/2006.2025.00044. Print 2025 Jul 2.
Individuals with Internet Gaming Disorder (IGD) exhibit a heightened reward responsiveness to gaming-related rewards, alongside a diminished response to natural rewards. However, the temporal dynamics and neural correlates underlying this imbalanced processing remain unclear.
This electrophysiological study investigated the neural responses associated with reward processing and their relationship to self-reported reward responsiveness. Using an Incentive Delay Task, we compared neural responses to gaming and monetary rewards between 25 IGD participants and 32 recreational game users (RGUs). Self-reported reward responsiveness was assessed with the Behavioral Approach/Inhibition System (BAS/BIS) scales.
The IGD group scored higher on the BAS-responsiveness subscale. Correlation analysis indicated that enhanced BAS-responsiveness was associated with automatic attention (N1) to gaming feedback, but not with feedback monitoring (FRN) or emotional arousal (LPP). No such correlation was found in the monetary condition. Following initial automatic attention, the IGD group demonstrated selective feedback monitoring (FRN) for gaming rewards while neglecting monetary feedback.
Gaming stimuli automatically capture the attention of individuals with IGD, triggering less top-down monitoring of other potential positive feedback. These findings suggest that attentional bias toward game-related stimuli serves as a sensitive biological marker of heightened reward responsiveness in individuals with IGD.
患有网络游戏障碍（IGD）的个体对游戏相关奖励表现出更高的奖励反应性，同时对自然奖励的反应减弱。然而，这种不平衡加工背后的时间动态和神经关联仍不清楚。
这项电生理研究调查了与奖励加工相关的神经反应及其与自我报告的奖励反应性的关系。使用激励延迟任务，我们比较了25名IGD参与者和32名娱乐游戏使用者（RGU）对游戏和金钱奖励的神经反应。使用行为趋近/抑制系统（BAS/BIS）量表评估自我报告的奖励反应性。
IGD组在BAS反应性子量表上得分更高。相关分析表明，增强的BAS反应性与对游戏反馈的自动注意（N1）相关，但与反馈监测（FRN）或情绪唤醒（LPP）无关。在金钱条件下未发现这种相关性。在最初的自动注意之后，IGD组对游戏奖励表现出选择性反馈监测（FRN），而忽略了金钱反馈。
游戏刺激会自动吸引IGD个体的注意力，从而减少对其他潜在积极反馈的自上而下的监测。这些发现表明，对与游戏相关刺激的注意偏向是IGD个体奖励反应性增强的一个敏感生物学标志物。
