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Related Concept Videos

Stress01:20

Stress

6.0K
When a force is applied on a body, it undergoes deformation. In order to restore the body to its original shape and/or size, an opposite or restoring force is generated within the body. This restoring force is equal to the magnitude of the applied force, but acts in the opposite direction. The amount of this restoring force developed per unit area of the body is called stress. Stress is a tensor quantity and has the SI unit pascal. Stress can be separated into four broad categories depending...
6.0K
Stress and Mental Health01:30

Stress and Mental Health

1.7K
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
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Psychological Responses to Stress01:20

Psychological Responses to Stress

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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...
978
Components of Stress01:23

Components of Stress

674
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...
674
General State of Stress01:21

General State of Stress

917
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...
917
Physiological Foundation of Stress01:24

Physiological Foundation of Stress

1.1K
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...
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Related Experiment Video

Updated: May 2, 2026

Using Practice Testing, Public Speaking, and Source Monitoring to Examine the Influences of Learning Strategies and Stress on Episodic Memory
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Using Practice Testing, Public Speaking, and Source Monitoring to Examine the Influences of Learning Strategies and Stress on Episodic Memory

Published on: June 14, 2019

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Acute stress reduces speech fluency.

Tony W Buchanan1, Jacqueline S Laures-Gore2, Melissa C Duff3

  • 1Department of Psychology, Saint Louis University, United States.

Biological Psychology
|February 22, 2014
PubMed
Summary
This summary is machine-generated.

Stressful situations may improve word productivity but increase pauses during speech. This study investigated stress effects on language, finding nuanced impacts on speech production under pressure.

Keywords:
CortisolLanguageSpeechStress

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Last Updated: May 2, 2026

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The Trier Social Stress Test Protocol for Inducing Psychological Stress
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Area of Science:

  • Psycholinguistics
  • Cognitive Psychology
  • Stress Research

Background:

  • Anecdotal reports suggest stress impairs speech and language abilities, particularly word-finding.
  • Empirical evidence directly linking stress to speech productivity remains limited.

Purpose of the Study:

  • To empirically investigate the effects of acute psychosocial stress on speech production variables.
  • To compare speech and language performance during a stressful condition versus a non-stressful control condition.

Main Methods:

  • Participants underwent a stressful Trier Social Stress Test (TSST) and a less stressful placebo TSST.
  • Speech and language variables, including word productivity and pausing, were measured during both conditions.
  • Physiological stress responses (cortisol, heart rate) were monitored.

Main Results:

  • Participants exhibited higher word productivity during the stressful TSST compared to the non-stressful condition.
  • Conversely, increased pausing during speech was observed under stress.
  • The effect of increased pausing was more significant in individuals with greater cortisol and heart rate responses.

Conclusions:

  • Stress has a complex, dual effect on speech production, enhancing word output while increasing hesitation.
  • Findings support anecdotal claims of stress-induced speech impairments.
  • Individual physiological responses to stress modulate the impact on speech production.