在非临床和临床环境中,不确定性和近期权重证据的整合
Magdalena Del Río1,2, Nadescha Trudel3,4, Gita Prabhu4
1Max Planck UCL Centre for Computational Psychiatry and Ageing Research, University College London, London, UK. magdalena_del_rio@brown.edu.
Nature human behaviour
|January 21, 2026
概括
犹不决的人,就像强迫症 (OCD) 患者一样,显示证据强度 (ΔES) 的权重减少. 信息收集中的这种偏见与强迫症谱中的症状有关.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 精神病学是一个精神病学.
背景情况:
- 信息收集偏见很普遍,可以在诸如强迫症 (OCD) 等疾病中病理表现出来.
- 犹是强迫症和相关疾病的一个关键特征,通常与处理信息的困难有关.
研究的目的:
- 调查决策中的信息整合偏见,特别是证据强度更新 (ΔES) 的作用.
- 检查在强迫症和强迫症频谱 (包括强迫症和一般性焦虑障碍) 中的 ΔES 权重和犹之间的关系.
主要方法:
- 一项大型众筹研究 (N=5,237) 和实验室复制 (N=105) 评估了与强迫症特征相关的 ΔES 权重.
- 磁脑电图 (MEG) 用于在决策过程中识别 ΔES 信号的神经相关物.
主要成果:
- 发现,减少 ΔES 的权重是强迫症频谱中犹不决的重要驱动因素.
- 确定了与DES相关的晚期神经信号 (~920ms).
- 具有较高强迫症倾向的个体在中额头区域表现出减弱的神经 ΔES 信号,而其他决策过程不受影响.
结论:
- 偏见的信息权重,特别是减弱的 ΔES,是强迫性谱系障碍中不决心的关键机制.
- 这一发现为强迫症和相关疾病的认知基础提供了新的视角.
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