Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Physiological Foundation of Stress01:24

Physiological Foundation of Stress

84
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...
84
Stress Response System01:21

Stress Response System

112
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...
112
Exercise Stress Test01:26

Exercise Stress Test

272
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
272
Applications of Stress01:04

Applications of Stress

367
Consider a structure made of a boom and a rod designed to support a load. These two components are connected by a pin and stabilized by brackets and pins. The boom and the rod are detached from their supports to assess the different stresses imposed on this structure, and a free-body diagram is drawn. Then, all the forces applied, including the load acting on the structure, are identified. The reaction forces exerted on both the boom and the rod are computed using the equilibrium equations.
The...
367
Psychological Responses to Stress01:20

Psychological Responses to Stress

76
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...
76

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Digital Health Monitoring and Intervention Suite for Stress in Frontline Nurses: Prospective Cohort Trial.

JMIR formative research·2026
Same author

Enhancing Fairness in Ultrasound Imaging: Evaluating Adversarial Debiasing Across Diverse Patient Demographics.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same author

SGAMARN: A GAN Framework for Metal Artifact Reduction in CT Imaging.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same author

A Wrist System for Daily Stress Monitoring Using Mid-Level Physiological Fusion and Late Fusion with Survey-Based Labels.

Sensors (Basel, Switzerland)·2025
Same author

Digital health monitoring for adults with treatment-resistant depression: Observational feasibility study protocol.

PloS one·2025
Same author

Leveraging large language models for automated depression screening.

PLOS digital health·2025

相关实验视频

Updated: Jul 21, 2025

Evaluation of Commercial-Off-The-Shelf Wrist Wearables to Estimate Stress on Students
12:51

Evaluation of Commercial-Off-The-Shelf Wrist Wearables to Estimate Stress on Students

Published on: June 16, 2018

7.5K

从VR模拟中使用决策树方法进行生理信号分析和压力分类.

Syem Ishaque1, Naimul Khan1, Sridhar Krishnan1

  • 1Department of Electrical, Computer and Biomedical Engineering, Toronto Metropolitan University, Toronto, ON M5B 2K3, Canada.

Bioengineering (Basel, Switzerland)
|July 29, 2023
PubMed
概括

这项研究使用生理数据和机器学习来对虚拟现实游戏中的压力水平进行分类. 先进的模型在二元压力分类中实现了100%的准确性,证明了有效的压力管理潜力.

科学领域:

  • 生理监测是指对身体进行生理监测.
  • 机器学习用于健康.
  • 虚拟现实应用程序 虚拟现实应用程序

背景情况:

  • 长时间的压力会对心血管和免疫系统产生负面影响.
  • 评估压力影响需要监测交感神经系统 (SNS) 和副交感神经系统 (PNS).
  • 通过心电图 (ECG),电磁皮肤反应 (GSR) 和呼吸 (RESP) 传感器获取生理数据至关重要.

研究的目的:

  • 为了分析虚拟现实 (VR) 气泡花游戏期间的生理应激反应.
  • 开发和评估用于准确压力分类的机器学习模型.
  • 调查新功能在压力检测方面的有效性.

主要方法:

  • 收集了15名受试者在各种任务 (包括VR游戏) 期间的生理数据 (ECG,GSR,RESP).
  • 提取了21个特征,并从其他11个特征中开发了一个新的K-means特征.
  • 使用了个性化的分类和回归树 (CART),决策树 (DT),集成梯度增强 (EGB) 和极端梯度增强 (XGBoost) 模型.

主要成果:

  • 心率 (HR),GSR和RESP下降,而高频率 (HF) 在VR游戏后增加.
  • 个性化CART实现了87.75%的准确度,用于二元应力分类.
关键词:
基尼指数基尼指数基尼指数人权高官,人权高人,人权高人.K-意味着特征的特征.虚拟现实视频游戏 VR 视频游戏个性化的CART模型压力就是压力,压力就是压力.

更多相关视频

Virtual Reality Experiments with Physiological Measures
07:09

Virtual Reality Experiments with Physiological Measures

Published on: August 29, 2018

12.8K
A Community-based Stress Management Program: Using Wearable Devices to Assess Whole Body Physiological Responses in Non-laboratory Settings
10:45

A Community-based Stress Management Program: Using Wearable Devices to Assess Whole Body Physiological Responses in Non-laboratory Settings

Published on: January 22, 2018

7.7K

相关实验视频

Last Updated: Jul 21, 2025

Evaluation of Commercial-Off-The-Shelf Wrist Wearables to Estimate Stress on Students
12:51

Evaluation of Commercial-Off-The-Shelf Wrist Wearables to Estimate Stress on Students

Published on: June 16, 2018

7.5K
Virtual Reality Experiments with Physiological Measures
07:09

Virtual Reality Experiments with Physiological Measures

Published on: August 29, 2018

12.8K
A Community-based Stress Management Program: Using Wearable Devices to Assess Whole Body Physiological Responses in Non-laboratory Settings
10:45

A Community-based Stress Management Program: Using Wearable Devices to Assess Whole Body Physiological Responses in Non-laboratory Settings

Published on: January 22, 2018

7.7K
  • 对于二元应力分类,EGB模型达到了100%的准确性,超过了现有的研究.
  • XGBoost和DT模型使用新的K-means功能以72.22%的准确性对五个应激类进行了分类.

    • 结论:

    • 提出的方法,特别是EGB,在分类压力水平方面表现出高效.
    • 新的K-means功能提高了模型性能,并减少了应力分类中的错误.
    • 虚拟现实游戏与先进的机器学习相结合,为压力管理和评估提供了一个有希望的方法.