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Related Concept Videos

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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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Related Experiment Video

Updated: Jan 4, 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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Acute Exercise, Psychological Stress Induction, and Episodic Memory.

Paul D Loprinzi1, Lauren Koehler2, Emily Frith3

  • 1Paul D. Loprinzi, University of Mississippi, Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, University of Mississippi, Shenzhen, China;,

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This study found that exercise before memory encoding or during consolidation did not improve episodic memory after stress. Memory declined over time for all participants, regardless of exercise timing.

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Area of Science:

  • Neuroscience
  • Exercise Physiology
  • Cognitive Psychology

Background:

  • Stress significantly impacts cognitive functions, particularly episodic memory.
  • The timing of physical activity relative to stress exposure may modulate cognitive outcomes.
  • Understanding exercise's role in memory resilience under stress is crucial for mental well-being.

Purpose of the Study:

  • To investigate the effects of exercise timing (pre-encoding vs. during consolidation) on episodic memory after acute stress.
  • To determine if moderate-intensity exercise can mitigate stress-induced memory impairment in young adults.

Main Methods:

  • Three randomized controlled experiments were conducted with young adults.
  • Episodic memory was assessed using a logic memory task before and after a 45-minute period.
  • Participants underwent either pre-encoding or consolidation-phase exercise (15-minute moderate-intensity) alongside psychological stress induction.

Main Results:

  • A significant main effect of time indicated memory decline across both assessment periods.
  • No significant time x group interaction effects were observed.
  • Exercise timing did not show a statistically significant association with memory function post-stress.

Conclusions:

  • Episodic memory function decreased over the observation period in all experimental conditions.
  • Acute moderate-intensity exercise, whether before encoding or during consolidation, did not enhance or protect episodic memory following psychological stress.
  • The findings suggest exercise timing may not be a critical factor in mitigating short-term memory deficits induced by acute stress.