Individual differences in reward prediction error: contrasting relations between feedback-related negativity and trait measures of reward sensitivity, impulsivity and extraversion.
Individual differences in reward prediction error: contrasting relations between feedback-related negativity and trait measures of reward sensitivity, impulsivity and extraversion.
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DOI：
10.3389/fnhum.2014.00248
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发表时间：
2014
影响因子：
2.9
通讯作者：
Smillie LD
中科院分区：
文献类型：
--
作者：
Cooper AJ;Duke E;Pickering AD;Smillie LD
刺激后约200-300 ms发生的中额叶负性，通常被称为反馈相关负性（FRN），似乎至少部分由基于多巴胺能的奖励预测误差（RPE）信号调节。先前的研究（如Smillie等人的研究）表明，在联想学习任务中，基于多巴胺能的人格特征，即外向性，得分越高，与不可预测的非奖励和不可预测的奖励试验相比，差异波越明显。在当前的研究中，我们试图通过比较奖励敏感性、冲动性和外向性的特征测量在使用相同的联想学习任务时与FRN的关系来扩展这一研究。健康成人（N = 38）在完成联想学习任务前完成一系列人格问卷，同时记录脑电图。正如预期的那样，FRN在未预料到的无奖励后是最负的。计算了一个差异波来对比未预测的非奖励和未预测的奖励试验。外向性，而不是冲动性，与这种差异波有显著的联系。此外，差异波与预期愉悦的测量显著相关，而与圆满愉悦无关。这些发现为现有证据提供了支持，这些证据表明，大脑“奖励”途径中多巴胺能功能的变化可能部分支持FRN与外向性和预期性快乐的特征测量之间的联系。
Medial-frontal negativity occurring ∼200–300 ms post-stimulus in response to motivationally salient stimuli, usually referred to as feedback-related negativity (FRN), appears to be at least partly modulated by dopaminergic-based reward prediction error (RPE) signaling. Previous research (e.g., Smillie et al.,) has shown that higher scores on a putatively dopaminergic-based personality trait, extraversion, were associated with a more pronounced difference wave contrasting unpredicted non-reward and unpredicted reward trials on an associative learning task. In the current study, we sought to extend this research by comparing how trait measures of reward sensitivity, impulsivity and extraversion related to the FRN using the same associative learning task. A sample of healthy adults (N = 38) completed a battery of personality questionnaires, before completing the associative learning task while EEG was recorded. As expected, FRN was most negative following unpredicted non-reward. A difference wave contrasting unpredicted non-reward and unpredicted reward trials was calculated. Extraversion, but not measures of impulsivity, had a significant association with this difference wave. Further, the difference wave was significantly related to a measure of anticipatory pleasure, but not consummatory pleasure. These findings provide support for the existing evidence suggesting that variation in dopaminergic functioning in brain “reward” pathways may partially underpin associations between the FRN and trait measures of extraversion and anticipatory pleasure.
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DOI：
10.1111/j.1751-9004.2010.00327.x
发表时间：
2010-12-01
影响因子：
4.6
作者：
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