过去的自杀企图与较弱的决策偏见有关,以积极逃避与自杀有关的刺激
Adam C Jaroszewski1, Alexander J Millner2, Samuel J Gershman2
1Department of Psychiatry, Harvard Medical School.
Journal of psychopathology and clinical science
|April 10, 2025
概括
与自杀相关的刺激可以影响逃避痛苦的决策,特别是当厌恶度低时. 这项研究揭示了这些刺激如何影响选择,并提供了对自杀风险因素的见解.
科学领域:
- 心理学 心理学 心理学
- 决策科学 决策科学 决策科学
- 神经科学是一个神经科学.
背景情况:
- 自杀行为往往是试图逃避急性痛苦的尝试.
- 个人选择自杀而不是其他应对策略的具体机制尚不清楚.
- 与自杀相关的环境刺激可能会影响决策,特别是如果它们引起低厌恶.
研究的目的:
- 调查与自杀相关的刺激是否会影响逃离急性痛苦的决策.
- 探索刺激厌恶在与自杀有关的决策中的作用.
- 通过计算建模来确定自杀企图的客观相关性.
主要方法:
- 招募了360名成年人,分为三个组:自杀想法和行为 (STB),没有STB的精神症状升高,没有症状/STB.
- 参与者评价了个性化的自杀和积极的刺激,并完成了一项行为逃避任务.
- 一个计算模型分析了任务性能,以确定潜在的决策偏见.
主要成果:
- 与其他群体相比,有过自杀尝试的个体对与自杀有关的刺激的厌恶程度明显较低.
- 自杀小组在刺激与自杀相关而不是积极时,做出了更多的冲动性逃避决策.
- 计算机建模揭示了由自杀刺激驱动的潜在偏见,解释了冲动的逃跑决策.
结论:
- 对自杀刺激的厌恶程度较低与过去自杀企图的可能性更高有关.
- 决策科学和计算建模为了解自杀风险提供了有价值的工具.
- 研究结果表明,刺激驱动的过程在自杀和其他与逃避相关的行为 (如滥用药物) 中起作用.
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