选择确定性而不是风险:PTSD症状严重程度与经验决策过程中的记忆采样之间的关联
Mieke Verfaellie1, Virginie Patt2, Ginette Lafleche2
1Memory Disorders Research Center, VA Boston Healthcare System, United States; Department of Psychiatry, Boston University Chobanian and Avedisian School of Medicine, United States.
Journal of anxiety disorders
|January 31, 2025
概括
终身PTSD症状严重程度与记忆回忆中的偏差相关,影响不确定性下的决策. 这表明PTSD会影响个人如何获得过去的负面经历.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 决策科学 决策科学 决策科学
背景情况:
- 创伤后应激障碍 (PTSD) 与改变的记忆处理有关.
- 在不确定性下做决定可能会受到情感记忆的影响.
研究的目的:
- 调查终身PTSD症状严重程度与决策中的记忆采样偏差之间的关联.
- 为了确定PTSD严重程度是否会影响在选择过程中回忆过去的负面与积极经历.
主要方法:
- 40名经历过创伤的退伍军人完成了一项决策任务,涉及在某些和不确定的收益/损失之间做出选择.
- 参与者的选择需要对过去经历的结果进行抽样记忆.
- 评估了终身PTSD症状严重程度,并对风险偏好进行统计控制.
主要成果:
- 更高的终身PTSD症状严重程度与减少对收益和损失的不确定的选择的选择有关.
- 这种模式表明,在决策中,人们倾向于采集所有负面经历,而不仅仅是极端的经历.
- 在随后的明确记忆任务中,没有发现过重负面经历的PTSD相关偏差.
结论:
- 创伤后应激障碍症状严重程度与不确定性下决策过程中的记忆采样偏差有关.
- 创伤后应激障碍的决策偏见背后的记忆机制可能与控制显式记忆回忆的记忆机制不同.
- 这些发现突显了PTSD,记忆和决策过程之间的复杂相互作用.
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