相关实验视频
Updated: Jul 20, 2025

10:07
Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
Published on: November 6, 2015
13.5K
在压力期间自主调节面部温度:交叉映射分析
Federica Gioia1,2, Mimma Nardelli1,2, Enzo Pasquale Scilingo1,2
1Dipartimento di Ingegneria dell'Informazione, University of Pisa, 56122 Pisa, Italy.
Sensors (Basel, Switzerland)
|July 29, 2023
概括
通过红外热学测量面部皮肤温度,与自主神经系统 (ANS) 有关. 这项研究揭示了面部温度和ANS活动,特别是鼻子之间的非线性相关性,增强了热成像的情感推断.
科学领域:
- 心理生理学 心理生理学
- 生物医学工程 生物医学工程
- 非线性动力学是一种非线性动力学.
背景情况:
- 皮肤温度是自主神经系统 (ANS) 对情绪和精神状态的反应的生理指标.
- 红外热学提供了一种非侵入性方法,用于远程测量皮肤温度.
- 了解面部温度变化对于使用热成像进行准确的情感推断至关重要.
研究的目的:
- 为了研究面部温度和ANS活动之间的非线性合.
- 为了确定压力如何影响面部温度动态.
- 为了确定特定的面部区域与ANS相关的更强的相关性.
主要方法:
- 记录了30名志愿者在休息和急性压力期间的热图像 (Stroop测试).
- 测量心率变化 (HRV) 和皮电活动 (EDA) 作为ANS相关.
- 应用交叉映射 (CM) 来量化面部温度和ANS时间序列之间的非线性合.
主要成果:
- 面部温度显示了与HRV和EDA的统计学上显著的非线性相关性,在线性分析中并不明显.
- 与其他面部区域相比,鼻子与EDA (两种情况) 和HRV (压力下) 有更强的联系.
- 心血管活动被确定为鼻子温度下降的主要驱动因素,在合中存在性别特异的变化.
结论:
- 非线性合分析 (CM) 有效地揭示了面部温度和ANS活动之间的关系.
- 鼻子是一个关键的面部区域,用于监测ANS驱动的温度变化,特别是在压力下.
- 这些发现有助于通过热成像改善情绪状态检测,考虑到性别差异.
相关概念视频
Sympathetic Activation
5.4K
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...
5.4K
Facial Feedback Hypothesis
191
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
191
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...
Role of the Sympathetic Nervous System
Adrenaline triggers the...
84
Thermoregulation
1.0K
The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
1.0K
Responses to Heat and Cold Stress
13.6K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.6K
Hypothalamic-Pituitary Axis
60.5K
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.
60.5K

