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焦虑相关恐惧中的刺激处理偏差概括:漂移-扩散模型和子组差异差异

Donghuan Zhang^1,2, Min Fan^1,2, Biyao Zhang^1,2

¹Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, South China Normal University, Guangzhou, People's Republic of China.

Cognition & emotion

|November 22, 2024

概括

焦虑会影响人们收集证据的方式,从而影响恐惧泛化中的威胁判断. 这种影响在个体之间有所不同,突出了战略偏好在处理刺激中的作用.

科学领域:

认知神经科学认知神经科学
心理学心理学心理学

背景情况:

恐惧泛化包括对类似刺激的恐惧反应过度泛化.
焦虑与过度的恐惧反应和改变威胁感知有关.
在恐惧泛化中理解威胁判断的计算机制至关重要.

研究的目的:

为了调查焦虑偏见如何在恐惧泛化范式中威胁判断.
探索跨参与者子组的概括梯度的差异.
应用计算建模 (漂移-扩散模型) 来解释这些差异.

主要方法:

用二进制恐惧概括判断任务来收集行为数据.
参与者根据他们的反应模式进行了分组.
层次推移-扩散建模分析了反应时间分布和个体得分.

主要成果:

国家焦虑和刺激相似性都促进了威胁判断.
国家焦虑削弱了刺激相似性对证据收集的影响.
这些焦虑影响是特定于某些参与者小组的.

结论:

在塑造威胁判断方面,焦虑与刺激相似性有显著的相互作用.
个人对策略偏好的差异在恐惧泛化中起着关键作用.
计算建模提供了对焦虑和恐惧概括背后的认知过程的见解.

关键词:

恐惧的泛化恐惧的泛化焦虑是一种焦虑.漂移-扩散模型的漂移-扩散模型梯度梯度是指一个梯度.

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