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Related Concept Videos

Introduction to Stress and Lifestyle01:27

Introduction to Stress and Lifestyle

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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...
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Psychological Responses to Stress01:20

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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...
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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.
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Traumatic Memory01:20

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Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
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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.
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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.
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Related Experiment Video

Updated: Dec 24, 2025

Using Practice Testing, Public Speaking, and Source Monitoring to Examine the Influences of Learning Strategies and Stress on Episodic Memory
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Does Acute Stress Impact Declarative and Procedural Learning?

Ranin Ballan1,2, Yafit Gabay1,2

  • 1Department of Special Education, University of Haifa, Haifa, Israel.

Frontiers in Psychology
|April 11, 2020
PubMed
Summary
This summary is machine-generated.

Acute stress did not impair probabilistic category learning, regardless of whether feedback was immediate or delayed. This suggests that not all learning dependent on the hippocampus is negatively affected by stress.

Keywords:
category learningdelay feedbackfeedback-based learninghippocampusincremental learning of stimulus-response associationsprocedural learningstressstriatum

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Stress Research

Background:

  • Acute stress impacts memory, but effects vary across memory systems.
  • Declarative learning can be impaired by stress, while procedural learning may not be.
  • Probabilistic category learning shifts from striatal to hippocampal dependence with delayed feedback.

Purpose of the Study:

  • To investigate the influence of acute stress on probabilistic category learning.
  • To differentiate stress effects on procedural-based (immediate feedback) versus declarative-based (delayed feedback) learning.

Main Methods:

  • Sixty-two participants were assigned to stress or non-stress groups.
  • A probabilistic category learning task with immediate, short-delayed, and long-delayed feedback was employed.
  • Acute stress was induced using the Maastricht Acute Stress Test (MAST), with stress levels monitored via Galvanic Skin Response (GSR) and questionnaires.

Main Results:

  • The Maastricht Acute Stress Test successfully induced stress in participants.
  • No significant impairment in learning was observed in either feedback condition due to acute stress.
  • Stress did not negatively influence procedural-based or declarative-based category learning.

Conclusions:

  • Acute stress does not universally impair all forms of hippocampal-dependent learning.
  • These findings challenge the notion that stress always negatively affects declarative learning processes.
  • The study highlights the nuanced relationship between stress and different memory system engagements.