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Updated: Jul 16, 2026
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Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
Published on: July 1, 2014
Learning and memory impairment in PTSD: relationship to depression.
Louisa Burriss1, Edwin Ayers, Jay Ginsberg
1Shirley L Buchanan Neuroscience Laboratory, Dorn VA Medical Center, Columbia, South Carolina 29209-1639, USA.
Depression and Anxiety
|March 14, 2007
Summary
Combat veterans with posttraumatic stress disorder (PTSD) experience memory impairments. Depression, not anxiety, significantly mediates these memory deficits, suggesting further study is needed.
Area of Science:
- Neuroscience
- Psychiatry
- Psychology
Background:
- Posttraumatic stress disorder (PTSD) is prevalent in combat veterans.
- Cognitive impairments, particularly in memory, are frequently reported in PTSD.
- Understanding the specific cognitive deficits and their underlying mechanisms in veterans is crucial.
Purpose of the Study:
- To investigate memory function in combat veterans with and without PTSD.
- To compare memory performance across combat veterans with PTSD, combat veterans without PTSD, and noncombat veterans.
- To explore the mediating roles of depression and anxiety in PTSD-related memory impairments.
Main Methods:
- Administered WAIS Vocabulary and Digit Span subtests.
- Utilized Wechsler Memory Scale III Logical Memory (LMS) and Verbal Paired Associates (VPAS) subtests.
- Employed Zung Self-Rating Depression Scale and Spielberger State-Trait Anxiety Scale.
- Used statistical analysis including regression to identify mediating factors.
Main Results:
- Combat veterans with PTSD demonstrated significantly impaired performance on LMS and VPAS compared to controls.
- Veterans with PTSD also exhibited lower WAIS Vocabulary scores.
- When depression and anxiety were statistically controlled, group differences in memory performance diminished.
- Depression, measured by the Zung scale, was identified as a reliable predictor of memory deficits.
Conclusions:
- PTSD is associated with general learning and memory impairments in combat veterans.
- Depression appears to significantly mediate these memory deficits.
- Further research is warranted to elucidate the specific role of depression in PTSD-related cognitive impairments.
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