摘 要 网络游戏成瘾是现在互联网时代到来后越来越凸显的问题之一。《精神障碍诊断与统计手册（第5版）》已经将其列在其附录中，作为有待进一步研究的问题。网络游戏成瘾会对成瘾者，特别是对于青少年成瘾者，造成各种身体、心理和社会层面的不良影响。因而非常有必要在青少年群体中开展网络游戏成瘾的预防与干预研究。多项成瘾研究表明，成瘾与强化学习之间有密切的关联。本研究的目的旨在探讨网络游戏成瘾者的强化学习能力是否存在异常，以及具体有什么特点。采用概率翻转学习任务范式，研究在不同类型图片（水果vs游戏）条件下，网络游戏成瘾者和健康对照组在这一任务上的行为表现差异。结果发现，网络游戏成瘾与健康对照组之间在强化学习的水平方面比较接近，但是两者在学习策略上呈现出不同的模式差异，即网络游戏成瘾者在输钱之后，在网络游戏图片条件下，更难以改变自己的选择；而健康对照组在水果图片中，输钱后更难改变自己的选择。这表明网络游戏成瘾可能在影响强化学习能力之前，首先会影响不同情境下学习的过程和犯错后的学习策略。

Abstract Internet game addiction is one of the more and more prominent problems in the era of Internet. “The Diagnostic and Statistical Manual of Mental Disorders (Fifth Edition)”has been listed in its appendix for further study. Addiction to online games can cause adverse psychological and social adverse effects on addicts. Especially for young people, it is necessary to prevent and intervene. Many addiction studies show that there is a close correlation between addiction and reward learning. The purpose of this study is to explore the difference between reward learning ability of online game addicts and healthy controls. The probability rollover learning task paradigm was used to study the differences between online game addiction players and healthy controls under different picture conditions. The results show that the Internet game addiction and the health control group are close to the level of reward learning, but there are some differences in both learning strategies. Internet game addicts are more difficult to change their choices when they lose money in the game picture condition. Conversely, in the fruit picture condition, it is more difficult for the healthy control group to change their choices after losing money. It also shows that the Internet game addiction does not affect the strength of the reward learning ability itself, but it will affect the process of learning in different situations and the trend of the change after the error.