相关实验视频

Updated: Jun 6, 2025

An Alternative to the Traditional Cold Pressor Test: The Cold Pressor Arm Wrap
09:16

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

Published on: January 16, 2014

14.4K

压力评估与人类对心理压力的交感神经反应性有关

Jeremy A Bigalke1, Neha A John-Henderson2, Jason R Carter1

  • 1Department of Health, Human Performance, and Recreation, Baylor University, Waco, Texas, United States.

Journal of applied physiology (Bethesda, Md. : 1985)
|November 27, 2024
PubMed
概括

将心理压力视为威胁,而不是挑战,显著增加了肌肉交感神经活动 (MSNA) 的反应性. 这一发现有助于解释为什么个体对心理压力的反应不同.

关键词:
心血管疾病的心血管疾病心理压力 精神压力 精神压力同情神经系统的同情神经系统.威胁评估 威胁评估

更多相关视频

A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents06:15

A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents

Published on: July 10, 2017

12.8K
The Trier Social Stress Test Protocol for Inducing Psychological Stress09:39

The Trier Social Stress Test Protocol for Inducing Psychological Stress

Published on: October 19, 2011

56.2K

相关概念视频

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...
44
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...
46
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...
5.0K
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.
59.3K
The Sympathetic Nervous System01:25

The Sympathetic Nervous System

Overview
94.5K
Introduction to Stress and Lifestyle01:27

Introduction to Stress and Lifestyle

Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
80