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首页> 外文期刊>Clinical EEG and neuroscience: official journal of the EEG and Clinical Neuroscience Society (ENCS) >Event-Related Potentials Are Associated With Unexpected Gain and Loss: Using a Gambling Paradigm
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Event-Related Potentials Are Associated With Unexpected Gain and Loss: Using a Gambling Paradigm

机译：事件相关的潜力与意外增益和损失有关：使用赌博范例

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Objective . Previous neuroimaging studies have described altered activity in brain areas associated with reward processing following reward or punishment. This study examines the extent to which feedback-based experience of gain and loss is associated with electrophysiological correlates. Methods . Twenty-nine healthy participants used a gambling task that focused on actual nonpredictable gains and losses. During the task, an electroencephalography recording was performed in order to assess reward processing. Event-related potentials were analyzed when participants were receiving gain/loss feedback. Results . Event-related potentials revealed higher feedback-related negativity for both overall gain and loss compared with a neutral condition in fronto-centro-parietal electrodes. P3 potentials were significantly increased for high gains/losses compared to neutral and small gains/losses. Conclusion . These results indicate that the paradigm is suitable to evoke specific patterns of reward-related electrophysiological responses. The wavelet analysis showed that electroencephalography frequency variations depended on the amount of gains/losses. Significance . This gambling paradigm is appropriate to measure aspects of feedback processing and could help analyze disease-specific alterations of the reward system in patients.
机译：客观的 。以前的神经影像学研究描述了与奖励或惩罚后奖励处理相关的大脑领域的改变活动。本研究探讨了基于反馈的增益和损失经验的程度与电生理相关相关。方法 。二十九个健康的参与者使用了赌博任务，专注于实际的不可预测的收益和损失。在任务期间，执行脑电图记录以评估奖励处理。当参与者接受收益/亏损反馈时，分析了与事件相关的潜力。结果 。与前方 - 椎廓电极中的中性条件相比，事件相关潜力显示出总体增益和损失的更高的反馈相关负极性。与中性和小的收益/损失相比，P3电位显着增加了高收益/损失。结论 。这些结果表明范例适用于唤起奖励相关的电生理反应的特定模式。小波分析表明，脑电图频率变化依赖于增益/损失的量。意义。这种赌博范例是适合测量反馈处理的各个方面，并有助于分析患者奖励系统的疾病特异性改变。

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