相关实验视频

Updated: Jul 3, 2025

Restraint to Induce Stress in Mice and Rats
03:48

Restraint to Induce Stress in Mice and Rats

Published on: December 6, 2024

1.3K

皮质-大脑干电路减弱了生理应激反应能力

Sebastian A Pace1, Ema Lukinic1, Tyler Wallace1

  • 1Department of Biomedical Sciences, Colorado State University, Fort Collins, CO, USA.

The Journal of physiology
|February 14, 2024
PubMed
概括

腹中前额叶皮层 (vmPFC) 通过投射到正面腹侧髓 (RVLM) 直接影响压力反应. 这种电路激活减少了两性压力诱导的皮质释放,突出了压力评估和生理反应的关键途径.

关键词:
皮质类皮质类固醇.葡萄糖 葡萄糖 葡萄糖 葡萄糖视觉遗传学 视觉遗传学前额叶皮层前额叶皮层腹侧脑髓 腹侧脑髓

更多相关视频

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm07:26

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm

Published on: May 4, 2020

3.4K
An Alternative to the Traditional Cold Pressor Test: The Cold Pressor Arm Wrap09:16

An Alternative to the Traditional Cold Pressor Test: The Cold Pressor Arm Wrap

Published on: January 16, 2014

14.5K

相关概念视频

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...
58
Hypothalamic-Pituitary Axis01:37

Hypothalamic-Pituitary Axis

The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
60.0K
The Sympathetic Nervous System01:25

The Sympathetic Nervous System

Overview
95.1K
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
In the alarm stage, the body's...
91
Sympathetic Activation01:17

Sympathetic Activation

The sympathetic division can influence tissues and organs by releasing norepinephrine at peripheral synapses and distributing epinephrine and norepinephrine through the bloodstream. In times of crisis or stress, sympathetic activation occurs, which is regulated by sympathetic centers in the hypothalamus. As a result, sympathetic activation prepares the body for physical exertion, rapid ATP production, and heightened alertness, allowing individuals to respond effectively to challenging or...
5.3K
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...
54