UNCONSCIOUS FEAR EFFECTS ON DECISION MAKING

无意识的恐惧对决策的影响

• 批准号: 7381419
• 负责人: MATTHEW O KIMBLE
• 金额: $ 1.16万
• 依托单位: UNIVERSITY OF VERMONT & ST AGRIC COLLEGE
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7381419
• 关键词: UNCONSCIOUS; FEAR; EFFECTS; DECISION; MAKING

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Studies using the Iowa Gambling Task (IGT) have shown that anticipatory fear responses, as measured by decreases in skin resistance (SCR), precede both conscious awareness of fear as well behavioral avoidance of feared stimuli (in this task-- cards that lead to losses during a gambling task). Many have interpreted such findings to suggest that non-conscious fear responses may influence behavior without awareness. While this phenomenon is being widely studied in non-clinical samples, the clinical relevance of this work has received little attention. Phobic subjects are known to produce SCRs to fear-related stimuli even when presented subliminally. This study will investigate whether such anticipatory fear responses to subliminal stimuli will lead to avoidance of fear-related stimuli in phobic subjects. Four hundred college students will be screened for spider fear with extreme scorers placed into ?high fear? (HF) and ?low fear? (LF) groups. Both groups will perform a modified version of the Iowa Gambling Task that will include subliminal presentations of fear-related stimuli when certain choices are made. Only phobic subjects should produce SCRs to fear-related stimuli and thus should be the only group to show behavioral avoidance of such stimuli even when unaware of the stimulus presentation.

该子项目是利用NIH/NCRR资助的中心赠款提供的资源的许多研究子项目之一。子项目和研究者（PI）可能从另一个NIH来源获得主要资金，因此可以在其他CRISP条目中表示。所列机构为中心，不一定是研究者所在机构。使用爱荷华州赌博任务（IGT）的研究表明，预期的恐惧反应（通过皮肤电阻（SCR）的降低来测量）先于对恐惧的意识意识以及对恐惧刺激的行为回避（在该任务中-在赌博任务中导致损失的卡片）。许多人将这些发现解释为无意识的恐惧反应可能会影响无意识的行为。虽然这种现象正在非临床样本中进行广泛研究，但这项工作的临床相关性却很少受到关注。已知恐惧受试者对与恐惧相关的刺激产生SCR，即使是在潜意识中。本研究将探讨这种对阈下刺激的预期恐惧反应是否会导致恐惧受试者回避与恐惧相关的刺激。四百名大学生将接受蜘蛛恐惧症的筛查，极端得分者将被置于？高度恐惧？(HF)然后呢？低恐惧？(LF)组两个小组都将执行爱荷华州赌博任务的修改版本，其中包括在做出某些选择时，与恐惧相关的刺激的阈下呈现。只有恐惧症的受试者应该产生SCR恐惧相关的刺激，因此应该是唯一的一组显示行为回避这种刺激，即使不知道的刺激呈现。