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関連する概念動画

Physiological Foundation of Stress01:24

Physiological Foundation of Stress

776
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...
776
Psychological Responses to Stress01:20

Psychological Responses to Stress

763
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...
763
Stress Response System01:21

Stress Response System

961
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...
961
Exercise Stress Test01:26

Exercise Stress Test

1.5K
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
1.5K
Components of Stress01:23

Components of Stress

586
Stress analysis under multiple loading conditions is intricate, necessitating a comprehensive grasp of normal and shearing stresses. Consider a small cube at point O, subjected to stress on all six faces, visible or not. Normal stress components σx, σy, σz act perpendicularly to the x, y, and z axes. Shearing stress components τxy and τxz are exerted on faces perpendicular to these axes.
Interestingly, the hidden cube faces also experience these stresses, equal and...
586
General State of Stress01:21

General State of Stress

703
The general state of stress within a material can be accurately depicted using a stress tensor. This tensor encapsulates the internal forces distributed within a material subjected to external forces or deformations.
Specifically, consider a tetrahedral element where one face, labeled XYZ, is perpendicular to the line OA, and the remaining faces align with the coordinate axes with point O as the origin. At any point, such as point O, the stress tensor can be used to determine the stress...
703

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関連する実験動画

Updated: Feb 24, 2026

The Trier Social Stress Test Protocol for Inducing Psychological Stress
09:39

The Trier Social Stress Test Protocol for Inducing Psychological Stress

Published on: October 19, 2011

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動作中の心臓のインターオセプション:ストレスの誘導後に,スピーチタスクによる調節.

Lorena Desdentado1, Micah G Allen2, Jasmin Schultze3

  • 1Department of Clinical and Health Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89069 Ulm, Germany; CIBER of Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain; Polibienestar Research Institute, University of Valencia, Serpis 29, 46022 Valencia, Spain; Department of Developmental and Educational Psychology, University of Valencia, Blasco Ibáñez 21, 46021 Valencia, Spain; Department of Personality, Evaluation and Psychological Treatments, University of Valencia, Av. Blasco Ibáñez 21, 46010 Valencia, Spain.

Biological psychology
|February 22, 2026
PubMed
まとめ

急性ストレスは心臓のインターオセプションを高め,心臓の信号を感知する能力を向上させます. この研究では,ストレスの多い作業中に心への注意と,インターオセプティブの感度が増加することが判明しました.

キーワード:
不安,不安,不安,不安,不安,不安,不安,不安,不安,不安,不安,不安,不安.インターオセプション インターオセプション予測型コーディングパブリック・スピーキングスピーチタスク スピーチタスク スピーチタスクストレス ストレス ストレス ストレス

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Evaluation of Commercial-Off-The-Shelf Wrist Wearables to Estimate Stress on Students
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Modulation of the Neurophysiological Response to Fearful and Stressful Stimuli Through Repetitive Religious Chanting
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関連する実験動画

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科学分野:

  • 心理学 心理学とは
  • 神経科学は神経科学である.
  • 精神生理学 精神生理学とは

背景:

  • 体の内部状態の感覚であるインターオセプションは,通常,休息状態で研究されます.
  • 新興の証拠は,インターオセプティブ・プロセスは,外部からの要求に応じて変化する可能性があることを示唆しています.
  • 心臓の整体感受,特に心拍の知覚は,重要な関心分野です.

研究 の 目的:

  • 急性ストレスによって心臓のインターオセプションが変化するかどうかを調査する.
  • ストレス下におけるインターオセプティブ感受性の変化と関連する測定値を調べる.

主な方法:

  • 139人の成人は,ストレスの多いスピーチ・タスクや,コントロール・リーディング・タスクのいずれかを受けました.
  • 心拍のインターオセプションは,心拍の差別化 (HRD) タスクを使用して評価されました.
  • 心臓信号への注意の自己報告の測定は,タスク前と後の収集でした.

主要な成果:

  • ストレスグループでは,対照グループと比較して,感受体内感受性 (d') が有意に増加した.
  • ストレスを受けた参加者は,心臓の信号に注意を向けたと報告した.
  • 他のインターオセプティブアウトカムでは,有意な変化は見られなかった.

結論:

  • 急性ストレスは,心臓のインターオセプティブ感度と,自己報告された心臓への注意を高めるようです.
  • これらの発見は,ストレスとインターオセプションの間のダイナミックな相互作用を示唆しています.
  • これらの結果を検証し,臨床的影響を調査するためにさらなる研究が必要である.