The somatic marker hypothesis (Damasio, Tranel, & Damasio, 1991) is a controversial theory asserting that somatic activities implicitly bias human behavior. In this study, we examined the relationship between choice behaviors in the Iowa Gambling Task and patterns of skin conductance responses (SCRs) within a healthy population. Results showed that low SCRs for appraising the monetary outcome of risky decisions were related to persistence in risky choices. Such adherence to risky decisions was not related to poor explicit knowledge about the task. On the other hand, anticipatory SCRs and the effect of them on performance were not confirmed. Our findings suggest that a variation in covert physiological appraisal underlies individual differences in decision making.

中文翻译：

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体细胞标记假设在决策中的个体差异中的应用

躯体标记假说 (Damasio, Tranel, & Damasio, 1991) 是一个有争议的理论，声称躯体活动隐含着人类行为的偏见。在这项研究中，我们检查了爱荷华州赌博任务中的选择行为与健康人群中皮肤电导反应 (SCR) 模式之间的关系。结果表明，用于评估风险决策的货币结果的低 SCR 与风险选择的持续性有关。这种对冒险决定的坚持与对任务的明确了解不相关。另一方面，未确认预期的 SCR 及其对性能的影响。我们的研究结果表明，隐蔽生理评估的变化是决策中个体差异的基础。