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与强迫症症状相关的感知决策障碍在很大程度上是由基于状态的效应驱动的
Claire M Kaplan1, Alec Solway2
1Department of Psychology, University of Maryland-College Park, MD 20742, USA.
Computational psychiatry (Cambridge, Mass.)
|May 22, 2024
概括
基于状态的强迫症症状 (OCS) 显著影响感知证据的积累,比基于特征的症状更重要. 工作记忆容量并没有改变决策模型中的这些基于状态的损伤.
科学领域:
- 计算精神病学是一种计算精神病学.
- 认知神经科学是一种认知神经科学.
- 临床心理学 临床心理学
背景情况:
- 强迫症症状 (OCS) 与决策模型中的感知证据积累受损有关.
- 以前的研究经常假设这些缺陷反映了全球疾病特征.
- 目前,基于状态的症状与持久的,基于特征的症状对这些缺陷的影响仍然不清楚.
研究的目的:
- 区分基于状态和基于特征的OCS对感知证据积累的影响.
- 调查工作记忆容量是否能缓和基于状态的证据积累障碍.
- 为了澄清信息处理和OCS中的症状状态之间的关系.
主要方法:
- 在一般人口样本 (N=150) 中利用决策的计算模型.
- 评估感知证据积累率和基于状态和基于特征的OCS.
- 包括工作内存容量作为一个潜在的调节变量.
主要成果:
- 在不考虑基于状态的症状时,复制了证据积累率和基于特征的OCS之间的负相关性.
- 当包括基于州的OCS时,它们占感知障碍的很大一部分,减轻了基于特征的效应.
- 没有证据表明工作记忆能力缓和了观察到的基于状态的障碍.
结论:
- 基于州的OCS在感知证据积累缺陷中发挥的作用比以前强调的要大得多.
- 研究结果表明,专注于当前症状状态对于理解OCS信息处理差异至关重要.
- 该研究强调了在OCS之外的计算精神病学研究中考虑症状状态的重要性.
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