Alexithymia, Cumulative Feedback, and Differential Response Patterns on the Iowa Gambling Task
Alexithymia, Cumulative Feedback, and Differential Response Patterns on the Iowa Gambling Task
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DOI：
10.1111/j.1467-6494.2009.00568.x
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发表时间：
2009-06-01
影响因子：
5
通讯作者：
O'Carroll, Ronan
中科院分区：
文献类型：
--
作者：
Ferguson, Eamonn;Bibby, Peter A.;O'Carroll, Ronan
虽然情绪处理的作用是当代风险决策模型的核心，但迄今为止，特质情绪理解的作用尚未在此背景下进行实验研究。目前的实验（N=326）探讨了述情障碍的作用，相对于标准的爱荷华州赌博任务（IGT）和版本，累积的财务反馈是模糊的性能。在述情障碍低的人中观察到IGT的标准学习。那些述情障碍高的人学会了在任务的前半部分避免不利的套牌。然而，在后来的试验中，他们的表现发生了变化，从有利转向不利，再回到有利的甲板上（称为“探索-学习-改变-返回”策略）。有人认为，这是由于无法充分巩固以前的学习和减少对损失的敏感性。累积反馈的缺乏独立地导致性能降低。
Although the role of emotional processing is central to contemporary models of risky decision making, to date the role of trait emotional understanding has not been explored experimentally in this context. The current experiment (N=326) explores the role of alexithymia with respect to performance on the standard Iowa Gambling Task (IGT) and a version where cumulative financial feedback is obscured. Standard learning on the IGT was observed for those low in alexithymia. Those high in alexithymia learned to avoid disadvantageous decks over the first half of the task. However, over the later trials they showed a change in performance, shifting from advantageous to disadvantageous and back to advantageous decks again (termed an "explore-learn-change-return" strategy). It is argued that this is due to an inability to fully consolidate earlier learning and reduced sensitivity to losses. The absence of cumulative feedback independently resulted in reduced performance.