Decision-Making and Prepotent Response Inhibition Functions in Excessive Internet Users
Decision-Making and Prepotent Response Inhibition Functions in Excessive Internet Users
复制标题
过度使用互联网的决策和强效反应抑制功能
DOI：
10.1017/s1092852900000225
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发表时间：
2009-02-01
期刊：
影响因子：
3.3
通讯作者：
Zhang, Da-Ren
中科院分区：
文献类型：
--
作者：
Sun, De-Lin;Chen, Zu-Ji;Zhang, Da-Ren
导语：过度互联网使用，又称网络成瘾或病理性网络使用，已经成为全球范围内一个严重的社会问题。一些研究人员认为EIU是一种行为成瘾。然而，关于过度互联网使用者(EIUers)认知功能的实验研究很少，能够将EIU与其他成瘾行为(如滥用药物和病态赌博)进行比较的数据也有限。方法：在本研究中，我们考察了EIUers的决策功能和优势反应抑制功能。两组参与者，EIUs组和对照组，分别使用赌博任务和进行/不进行任务对这两个功能进行了比较。结果：与对照组相比，EIUer在赌博任务中选择的网牌明显减少(P=.007)。此外，EIUers在选择策略方面取得了进展，但慢于对照组(EIUers，组块3和>；组块1，P&t；.001；对照组，组块2和>；组块2；P<；.001；对照组，组块2和>；组块1，P<；.001)。有趣的是，EIUers在不去状态下的准确率显著高于对照组(P=.018)。结论：EIU与药物滥用、病理性赌博等成瘾行为有异同之处。博彩任务的研究结果表明，EIUer在决策功能上存在缺陷，其特征是策略学习滞后，而不是无法从任务的偶发事件中学习。EIUs在GO/NO-GO任务中的较好表现表明，决策机制和优势反应抑制机制之间存在一定程度的分离。然而，EIUers在现实生活中很难抑制他们过度的在线行为。他们的抑制能力还需要更具体的评估来进一步研究。
Introduction: Excessive Internet use (EIU), also described as Internet addiction or pathological Internet use, has already become a serious social problem around the world. Some researchers consider EIU as a kind of behavioral addiction. However, there are few experimental studies on the cognitive functions of excessive Internet users (EIUers) and limited data are available to compare EIU with other addictive behaviors, such as drug abuse and pathological gambling. Methods: In this study, we examined EIUers' functions of decision-making and prepotent response inhibition. Two groups of participants, EIUers and controls, were compared on these two functions by using a Gambling Task and a Go/no-go Task, respectively. Results: Compared with controls, EIUers selected significantly less net decks in the Gambling Task (P =.007). Furthermore, the EIUers made progress in selecting strategy, but more slowly than did the control group (EIUers, chunk 3 > chunk 1, P<.001; controls, chunk 2 > chunk P<.001; controls, chunk 2 > chunk 1, P<.001). Interestingly, EIUers' accuracy during the no-go condition was significantly higher than that of controls (P=.018). Conclusion: These results showed some similarities and dissimilarities between EIU and other addictive behaviors such as drug abuse and pathological gambling. The findings from the Gambling Task indicated that EIUers have deficits in decision-making function, which are characterized by a strategy learning lag rather than an inability to learn from task contingencies. EIUers' better performance in the Go/no-go Task suggested some dissociation between mechanisms of decision-making and those of prepotent response inhibition. However, EIUers could hardly suppress their excessive online behaviors in real life. Their ability of inhibition still needs to be further studied with more specific assessments.