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相关概念视频

Preparedness and Phobias01:09

Preparedness and Phobias

96
Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...
96
Social Anxiety Disorder01:28

Social Anxiety Disorder

27
Social anxiety disorder, also known as social phobia, is characterized by an intense fear of social situations where one might face humiliation, rejection, embarrassment, or negative evaluation. This disorder leads individuals to avoid activities like casual conversations, public speaking, or seemingly simple tasks such as eating, signing documents, or swimming, in public settings. Its impact extends beyond discomfort, often significantly interfering with daily functioning and quality of life.
27
Behavior Therapy01:22

Behavior Therapy

43
Behavior therapy incorporates diverse techniques rooted in classical conditioning principles to address maladaptive behaviors and anxiety disorders. These methods aim to reduce avoidance behaviors, foster adaptive coping mechanisms, and alter associations between stimuli and responses, making them effective in a wide range of therapeutic contexts.
Exposure therapy is a cornerstone of behavioral treatment for anxiety disorders. It involves systematic exposure to feared stimuli, either in real...
43

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相关实验视频

Updated: Jun 6, 2025

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat
11:18

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat

Published on: September 12, 2014

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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 Zhang1,2, Min Fan1,2, Biyao Zhang1,2

  • 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
PubMed
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.

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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Stress-Enhanced Fear Learning, a Robust Rodent Model of Post-Traumatic Stress Disorder
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Measuring Attentional Biases for Threat in Children and Adults
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Measuring Attentional Biases for Threat in Children and Adults

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相关实验视频

Last Updated: Jun 6, 2025

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat
11:18

Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat

Published on: September 12, 2014

15.2K
Stress-Enhanced Fear Learning, a Robust Rodent Model of Post-Traumatic Stress Disorder
05:49

Stress-Enhanced Fear Learning, a Robust Rodent Model of Post-Traumatic Stress Disorder

Published on: October 13, 2018

12.0K
Measuring Attentional Biases for Threat in Children and Adults
08:25

Measuring Attentional Biases for Threat in Children and Adults

Published on: October 19, 2014

15.2K

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.