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Updated: Jun 3, 2025

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

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对恐惧和压力反应的计算建模:使用整合的恐惧和压力协议进行验证

Brunna Carolinne Rocha Silva Furriel1,2,3, Geovanne Pereira Furriel4, Mauro Cunha Xavier Pinto5

  • 1Instituto Federal de Goiás, Goiânia, Brazil.

Frontiers in systems neuroscience
|January 8, 2025
PubMed
概括

这项研究引入了一种模拟恐惧和压力反应的计算模型,提供了一种新的方法来研究神经疾病,并可能减少动物测试.

关键词:
立即灭绝赤字 (IED) 是一个现象.在生物学上可信的模型.计算建模计算建模情境恐惧条件化是情境恐惧的条件化.恐惧灭绝灭绝的恐惧神经架构是一种神经架构.压力模型 压力模型压力增强的恐惧学习 (SEFL)

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Psychological Responses to Stress01:20

Psychological Responses to Stress

Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
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Physiological Foundation of Stress01:24

Physiological Foundation of Stress

Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
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Stress Response System01:21

Stress Response System

The stress response system, also known as the fight-or-flight response, is the body's automatic physiological reaction to perceived threats. Hans Selye introduced the concept of General Adaptation Syndrome (GAS) to describe the predictable pattern of changes that occur in response to stress. GAS consists of three sequential stages: alarm, resistance, and exhaustion. This model helps explain how chronic stress can contribute to health problems.
Alarm stage
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Preparedness and Phobias01:09

Preparedness and Phobias

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...
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