Anxiety impairs decision-making: Psychophysiological evidence from an Iowa Gambling Task
Anxiety impairs decision-making: Psychophysiological evidence from an Iowa Gambling Task
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DOI：
10.1016/j.biopsycho.2007.11.010
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发表时间：
2008-03-01
影响因子：
2.6
通讯作者：
Houser, Daniel
中科院分区：
文献类型：
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作者：
Miu, Andrei C.;Heilman, Renata M.;Houser, Daniel
使用爱荷华州赌博任务（IGT）和情绪反应的心理生理相关性（即，心率和皮肤电导），我们调查特质焦虑（TA）对决策的影响。我们发现，高TA与受损的决策和增加预期的生理（躯体）反应之前，有利的试验。对于高TA和低TA，有利试验之前的皮肤电导反应预测决策。与此同时，选择结果的躯体反应反映了高和低TA对惩罚和奖励的敏感性之间的差异。我们在高TA中发现的决策受损和躯体标记物增加的模式可能对神经心理学决策理论具有重要意义。特别是，它提供了一个例子，有缺陷的调制的躯体信号，再加上中断歧视的有利和不利的选择。(C)2008 Elsevier B.V.保留所有权利。
Using the Iowa Gambling Task (IGT) and psychophysiological correlates of emotional responses (i.e., heart rate and skin conductance), we investigate the effects of trait anxiety (TA) on decision-making. We find that high TA is associated with both impaired decision-making and increased anticipatory physiological (somatic) responses prior to advantageous trials. For both high and low TA, skin conductance responses preceding advantageous trials predict decisions. At the same time, somatic responses to choice outcomes reflect differences between high and low TA sensitivities to punishments and rewards. The pattern of impaired decision-making and increased somatic markers that we find in high TA may have important implications for neuropsychological decision theory. In particular, it offers an example of defective modulation of somatic signals, coupled with disrupted discrimination of advantageous and disadvantageous choices. (C) 2008 Elsevier B.V. All rights reserved.