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Memory for acute stress disorder symptoms: a two-year prospective study
1Department of Experimental Psychology, University of Oxford, United Kingdom.
The Journal of Nervous and Mental Disease
|September 29, 2000
Summary
Memory accuracy for trauma symptoms is often flawed. Motor vehicle accident survivors inaccurately recalled acute stress disorder symptoms two years later, influenced by current stress levels.
Area of Science:
- Psychology
- Trauma Studies
- Memory Research
Background:
- Accurate recall of acute trauma symptoms is crucial for understanding long-term psychological outcomes.
- Motor vehicle accidents (MVAs) are a common cause of trauma, leading to conditions like acute stress disorder (ASD) and posttraumatic stress disorder (PTSD).
Purpose of the Study:
- To evaluate the accuracy of memory for acute trauma symptoms in MVA victims.
- To compare symptom recall at 2 years posttrauma with initial assessments within 1 month posttrauma.
Main Methods:
- Assessed 92 MVA admissions for acute stress disorder (ASD) within 1 month posttrauma.
- Reassessed 56 participants at 2 years posttrauma for PTSD and accuracy of recalled acute symptoms.
- Analyzed recall errors (omissions and additions) in relation to current PTSD severity and subjective injury ratings.
Main Results:
- 75% of patients inaccurately recalled at least one ASD diagnostic cluster after 2 years.
- High current PTSD severity correlated with recalling non-existent acute symptoms (addition errors).
- Low current PTSD severity correlated with omitting previously reported acute symptoms (omission errors).
Conclusions:
- Retrospective reports of acute stress symptoms after trauma should be interpreted with caution.
- Current symptom severity significantly influences the accuracy of recalling past trauma experiences.
- Memory biases in trauma recall highlight the need for careful clinical assessment.