Variability in nucleus accumbens activity mediates age-related suboptimal financial risk taking.
Variability in nucleus accumbens activity mediates age-related suboptimal financial risk taking.
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DOI：
10.1523/jneurosci.4902-09.2010
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发表时间：
2010-01-27
期刊：
影响因子：
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通讯作者：
Knutson B
中科院分区：
文献类型：
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作者：
Samanez-Larkin GR;Kuhnen CM;Yoo DJ;Knutson B
随着人类预期寿命持续延长，老年投资者的财务决策可能对全球经济产生越来越大的影响。在这项研究中，我们通过将功能性神经影像与动态金融投资任务相结合，研究了整个成人寿命中财务决策的年龄差异。在任务过程中，老年人在选择风险资产时比年轻人做出更多次优选择。这种与年龄相关的效应是由伏隔核活动时间变异性的神经测量介导的。这些发现揭示了一种新颖的神经机制，衰老可能会扰乱理性的财务选择。
As human life expectancy continues to rise, financial decisions of aging investors may have an increasing impact on the global economy. In this study, we examined age differences in financial decisions across the adult life span by combining functional neuroimaging with a dynamic financial investment task. During the task, older adults made more suboptimal choices than younger adults when choosing risky assets. This age-related effect was mediated by a neural measure of temporal variability in nucleus accumbens activity. These findings reveal a novel neural mechanism by which aging may disrupt rational financial choice.