Cited by 262Posttraumatic Stress Disorder ResearchFunctional Brain Connectivity StudiesMemory Processes and Influences

The nature of traumatic memories: a 4-T FMRI functional connectivity analysis

Lanius, Ruth A., Williamson, Peter C., Densmore, Maria, Boksman, Kristine, Neufeld, R. W., Gati, Joseph S., Menon, Ravi S.·2004·American Journal of Psychiatry

Abstract

OBJECTIVE: This study used functional connectivity analyses to assess interregional brain activity correlations during the recall of traumatic memories in traumatized subjects with and without posttraumatic stress disorder (PTSD). METHOD: Both 4-T functional magnetic resonance imaging (fMRI) and functional connectivity analyses were used to assess interregional brain activity correlations during script-driven symptom provocation in traumatized subjects with (N=11) and without (N=13) PTSD. Functional connectivity analyses were carried out by using data for brain regions activated in both the PTSD group and the comparison group. The use of functional connectivity analyses in addition to subtraction analyses allowed assessment of specific brain regions involved in the recall of traumatic events and of the neuronal networks underlying the recall of such events. RESULTS: Significant between-group differences in functional connectivity were found. Comparison of connectivity maps at coordinates x=2, y=20, z=36 (right anterior cingulate gyrus) for the two groups showed that the subjects without PTSD had greater correlation than the PTSD subjects in the left superior frontal gyrus (Brodmann's area 9), left anterior cingulate gyrus (Brodmann's area 32), left striatum (caudate), left parietal lobe (Brodmann's areas 40 and 43), and left insula (Brodmann's area 13). In contrast, the PTSD subjects showed greater correlation than the subjects without PTSD in the right posterior cingulate gyrus (Brodmann's area 29), right caudate, right parietal lobe (Brodmann's areas 7 and 40), and right occipital lobe (Brodmann's area 19). CONCLUSIONS: The differences in brain connectivity between PTSD and comparison subjects may account for the nonverbal nature of traumatic memory recall in PTSD subjects, compared to a more verbal pattern of traumatic memory recall in comparison subjects.

Integrity signals

Registry

Crossref · 10.1176/appi.ajp.161.1.36

Cites

46 of 46 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Lanius, R. A., Williamson, P. C., Densmore, M., Boksman, K., Neufeld, R. W., Gati, J. S., & Menon, R. S.
Affiliations
Western University (CA)
Venue
American Journal of Psychiatry
Published
2004-01-01
Volume
161
Issue
1
Pages
36-44
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W2133664593
Cited by
262
References
46
Citations by year
2026: 4 · 2025: 15 · 2024: 7 · 2023: 9 · 2022: 4 · 2021: 5 · 2020: 12 · 2019: 11 · 2018: 8 · 2017: 13 · 2016: 5 · 2015: 21 · 2014: 13 · 2013: 11 · 2012: 9
FWCI
13.42
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
post-traumatic stress disorder, functional connectivity, anterior cingulate cortex, posterior cingulate cortex, caudate nucleus, insula, parietal lobe, occipital lobe, traumatic brain injury
MeSH terms
Brain, Humans, Image Interpretation, Computer-Assisted, Imagination, Magnetic Resonance Imaging, Nerve Net, Mental Recall, Severity of Illness Index, Stress Disorders, Post-Traumatic, Subtraction Technique

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review