Problematic Internet Users Show Impaired Inhibitory Control and Risk Taking with Losses: Evidence from Stop Signal and Mixed Gambles Tasks.
Problematic Internet Users Show Impaired Inhibitory Control and Risk Taking with Losses: Evidence from Stop Signal and Mixed Gambles Tasks.
复制标题
有问题的互联网用户表现出抑制性控制和损失风险承担能力受损：来自停止信号和混合赌博任务的证据
DOI：
10.3389/fpsyg.2016.00370
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发表时间：
2016
影响因子：
3.8
通讯作者：
Liu X
中科院分区：
文献类型：
--
作者：
Li Q;Nan W;Taxer J;Dai W;Zheng Y;Liu X
根据自我调节平衡模型，抑制控制和奖励加工功能障碍可能是成瘾和问题行为的行为标志。虽然有一些研究分别研究了表现出问题网络使用（PIU）的个体的抑制控制或奖励处理，但没有研究同时探索这两种功能来检查这些功能的潜在不平衡。本研究旨在探讨PIU个体的自我调节失败是否由抑制控制（以停止信号任务中的停止信号反应时间（SSRT）为指标）和承担损失的风险（以风险的接受率或混合赌博任务中的输赢比来衡量）的缺陷造成的。结果显示，与对照组相比，PIU个体的SSRT减少，错误率增加，风险承担和损失减少。相关分析显示，SSRT与风险承担与损失之间存在显著的正相关关系。这些发现表明，PIU个体的抑制控制和奖励功能都受到损害，并揭示了这两个系统之间的关联。这些结果加强了自我调节理论的平衡模型，即抑制控制缺陷和风险承担损失可能有助于识别早期诊断、进展和预测PIU的风险标记。
According to the balance model of self-regulation, dysfunction of the inhibitory control and reward processing might be a behavioral marker for addiction and problematic behaviors. Although several studies have separately examined the inhibitory control or reward processing of individuals exhibiting problematic Internet use (PIU), no study has explored these two functions simultaneously to examine the potential imbalance of these functions. This study aimed to investigate whether the self-regulatory failure of PIU individuals results from deficits in both inhibitory control [indexed with the stop signal reaction time (SSRT) in a stop signal task] and risk taking with losses (measured as the acceptance rates of risky gables or the ratio of win/loss in a mixed gambles task). The results revealed that PIU individuals, compared with controls, showed decreased SSRT and increased error rates as well as reduced risk taking with losses. Correlational analyses revealed a significant positive relationship between the SSRT and risk taking with losses. These findings suggest that both the inhibitory control and reward functions are impaired in PIU individuals and reveal an association between these two systems. These results strengthen the balance model of self-regulation theory’s argument that deficits in inhibitory control and risk taking with losses may assist in identifying risk markers for early diagnosis, progression, and prediction of PIU.