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Deficits in short-term memory in posttraumatic stress disorder
J D Bremner1, T M Scott, R C Delaney
1Department of Psychiatry, Yale University School of Medicine, New Haven, Conn.
The American Journal of Psychiatry
|July 1, 1993
Summary
Patients with posttraumatic stress disorder (PTSD) exhibit significant memory deficits, particularly in short-term recall. These findings suggest that memory support is crucial for PTSD rehabilitation.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Psychology
Background:
- Posttraumatic stress disorder (PTSD) is a debilitating mental health condition.
- Cognitive impairments, including memory deficits, are frequently reported in individuals with PTSD.
Purpose of the Study:
- To investigate and compare memory function between combat veterans with PTSD and matched healthy controls.
- To identify specific memory domains affected by PTSD.
Main Methods:
- A cohort of 26 Vietnam veterans with combat-related PTSD was compared to 15 demographically and socioeconomically matched healthy subjects.
- Neuropsychological assessments included the Wechsler Memory Scale and the Selective Reminding Test to evaluate verbal and visual memory.
- Intelligence was assessed using subtests of the Wechsler Adult Intelligence Scale-Revised (WAIS-R).
Main Results:
- PTSD patients demonstrated significantly lower scores on immediate and delayed recall for logical memory compared to controls.
- Deficits were observed in verbal and visual memory components of the Selective Reminding Test, including total recall, storage, and retrieval.
- No significant differences in overall intelligence (prorated full-scale IQ) were found between the groups.
Conclusions:
- Individuals with PTSD may experience notable deficits in short-term memory function.
- Targeted counseling and rehabilitation programs addressing memory impairments could benefit PTSD patients.