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Stressful experience and learning across the lifespan
1Department of Psychology, Center for Collaborative Neuroscience, Rutgers University, Piscataway, New Jersey 08854, USA. shors@rci.rutgers.edu
Annual Review of Psychology
|December 2, 2005
Summary
Stressful life events can enhance certain learning processes, particularly those involving fear and threat. However, stress may impair memory retention and retrieval for unrelated information, with effects varying by age and sex.
Area of Science:
- Neuroscience
- Psychology
- Behavioral Science
Background:
- Common assumption: Stressful life events impair new information acquisition.
- Emerging evidence: Stressful experiences can enhance specific learning processes.
Purpose of the Study:
- To investigate the dual effects of stress on learning and memory.
- To explore the types of learning enhanced and impaired by stress.
- To identify factors influencing stress effects on cognition, including age and sex.
Main Methods:
- Review of existing studies on stress, learning, and memory.
- Analysis of learning paradigms such as classical fear and eyeblink conditioning.
- Examination of memory retention and retrieval deficits post-stress.
Main Results:
- Stressful experiences enhance learning related to fear and threatening stimuli.
- Stress impairs memory retention and retrieval of information unrelated to the stressor.
- Effects of stress on learning are modulated by age and sex differences.
Conclusions:
- Stress has differential effects on learning and memory processes.
- The hippocampus, amygdala, and prefrontal cortex are key brain regions involved.
- Further research is needed to understand age and sex influences on stress effects.