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

Conny W E M Quaedflieg1,2, Lars Schwabe1

  • 1a Department of Cognitive Psychology , Institute of Psychology, University of Hamburg , Hamburg , Germany.

Memory (Hove, England)
|June 20, 2017
PubMed
Summary
This summary is machine-generated.

Stressful events impact memory by altering how information is processed and stored. This review explores how stress mediators like catecholamines and glucocorticoids shift memory systems, affecting flexibility and detail incorporation.

Keywords:
Stressglucocorticoidshippocampusmemory generalisationmultiple memory systemsnoradrenalinereconsolidation

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Stress Research

Background:

  • Stressful events significantly influence memory formation and consolidation.
  • The effects are time-dependent, mediated by stress hormones like catecholamines and glucocorticoids.
  • Stress shifts memory processing towards habitual systems, impacting cognitive flexibility.

Purpose of the Study:

  • To review the time-dependent effects of stress mediators on memory systems.
  • To discuss how stress influences the dynamics of memory traces.
  • To explore the implications for memory flexibility, specificity, and integration.

Main Methods:

  • Review of existing literature on stress, memory, catecholamines, and glucocorticoids.
  • Analysis of the temporal dynamics of stress mediator actions.
  • Discussion of the interplay between different memory systems under stress.

Main Results:

  • Rapid stress responses prioritize processing immediate threats, favoring rigid memory systems.
  • Stress hinders the incorporation of contextual details and integration of new information.
  • Impaired memory generalization and modification are observed under stress.
  • Delayed genomic glucocorticoid actions may restore cognitive control and memory flexibility.

Conclusions:

  • Stress-induced shifts in memory systems have profound effects on memory trace dynamics.
  • Understanding these mechanisms is crucial for addressing stress-related memory impairments.
  • Glucocorticoid actions play a dual role, initially promoting habitual memory and later potentially restoring cognitive control.