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创伤后应激障碍症状,自杀念头,自杀企图和奖励折扣之间的关联
Stephanie L McManimen1, Jarrod Hay1, Cameron Long1
1Department of Psychiatry and Behavioral Health, The Ohio State University, Columbus, Ohio, USA.
概括
创伤后应激障碍 (PTSD) 与改变的奖励处理有关. 创伤后应激障碍症状增加了对不确定的奖励的值,同时与自杀风险相结合,也增加了对延迟奖励的值.
科学领域:
- 心理学 心理学 心理学
- 神经科学是一个神经科学.
- 行为科学 行为科学
背景情况:
- 创伤后应激障碍 (PTSD) 经常与自杀想法和行为有关.
- 决策过程,特别是风险承担,对于应对PTSD和自杀念头至关重要.
- 创伤后应激障碍和自杀风险对奖励折扣的影响,这是决策的一个关键方面,仍然不清楚.
研究的目的:
- 调查PTSD和自杀风险与延迟折扣 (DD) 和概率折扣 (PD) 之间的关系.
- 了解PTSD和不同程度自杀风险的个体如何降低与即时奖励相比延迟或不确定奖励的价值.
主要方法:
- 这项研究涉及498名参与者,评估了可能的PTSD,终身自杀企图和最近的自杀想法.
- 参与者完成了测量延迟折扣 (DD) 和概率折扣 (PD) 的任务.
- 统计分析检查了PTSD,自杀风险因素和折扣行为之间的关联.
主要成果:
- 暂时的PTSD诊断与增加的概率折扣有关,这表明不确定的奖励的值更大.
- 创伤后应激障碍与自杀企图史和想法相互作用,预测延迟折扣的增加,显示延迟奖励的更多值.
- 这些发现突显了PTSD和自杀风险对奖励估值的明显影响.
结论:
- 创伤后应激障碍的症状会影响个人对奖励的看法,尤其是不确定的奖励.
- 创伤后应激障碍和自杀风险之间的相互作用显著影响延迟奖励的值.
- 研究结果表明,对于PTSD来说,潜在的治疗策略包括将治疗目标结构化为较小的,即时的步骤.
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