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PTSD changes brain structure and function, including in the amygdala and hippocampus.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
6 sources for · 1 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that PTSD changes brain structure and function, including in the amygdala and hippocampus?

Yes. Multiple peer-reviewed reviews and imaging studies report that PTSD is associated with structural and functional brain changes, including reduced hippocampal volume and altered amygdala activity. One small combat-PTSD study found functional but not structural changes, a partial qualification.

Verdict: SUPPORTED · 6 sources for, 1 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 6
Can pharmacological and psychological treatment change brain structure and function in PTSD? A systematic review.
2014
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Thomaes, K., Dorrepaal, E., Draijer, N., Jansma, E. P., Veltman, D. J., & Balkom, A. J. v. (2014). Can pharmacological and psychological treatment change brain structure and function in PTSD? A systematic review.. doi.org. https://doi.org/10.1016/j.jpsychires.2013.11.002

Evidence against · 1
Linking intrinsic brain dysfunction to behavioral outcomes in combat-exposed males with PTSD symptoms
2025
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Harrington, D. L., Harrington, D. L., Shen, Q., Shen, Q., Angeles-Quinto, A., & Angeles-Quinto, A. (2025). Linking intrinsic brain dysfunction to behavioral outcomes in combat-exposed males with PTSD symptoms. doi.org. https://doi.org/10.3389/fpsyt.2025.1591938

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More for · 5
PTSD-related neuroimaging abnormalities in brain function, structure, and biochemistry
2020
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PTSD-related neuroimaging abnormalities in brain function, structure, and biochemistry. (2020). doi.org. https://doi.org/10.1016/j.expneurol.2020.113331

Alterations in brain structure and function associated with post-traumatic stress disorder.
1999
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Alterations in brain structure and function associated with post-traumatic stress disorder.. (1999). pubmed.ncbi.nlm.nih.gov. https://pubmed.ncbi.nlm.nih.gov/10553030

The Relationship Between Cognitive and Brain Changes in Posttraumatic Stress Disorder
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The Relationship Between Cognitive and Brain Changes in Posttraumatic Stress Disorder. (n.d.). cir.nii.ac.jp. https://doi.org/10.1196/annals.1364.008

Are the Post-COVID-19 Posttraumatic Stress Disorder (PTSD) Symptoms Justified by the Effects of COVID-19 on Brain Structure? A Systematic Review
2023
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Are the Post-COVID-19 Posttraumatic Stress Disorder (PTSD) Symptoms Justified by the Effects of COVID-19 on Brain Structure? A Systematic Review. (2023). doi.org. https://doi.org/10.3390/jpm13071140

Repeated cocaine exposure prior to fear conditioning induces persistency of PTSD-like symptoms and enhancement of hippocampal and amygdala cell density in male rats
2021
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Repeated cocaine exposure prior to fear conditioning induces persistency of PTSD-like symptoms and enhancement of hippocampal and amygdala cell density in male rats. (2021). hal.science. https://doi.org/10.1007/s00429-021-02320-w

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