Cited by 204Posttraumatic Stress Disorder ResearchTraumatic Brain Injury ResearchMemory Processes and Influences

Regional cerebral blood flow correlated with flashback intensity in patients with posttraumatic stress disorder

Osuch, Elizabeth A, Benson, Brenda, Geraci, Marilla, Podell, Daniel, Herscovitch, Peter, McCann, Una D, Post, Robert M·2001·Biological Psychiatry

Abstract

Background Nuclear imaging studies have examined cerebral blood flow (rCBF) in subjects with posttraumatic stress disorder (PTSD) using symptom evocation paradigms. To date, no such studies have investigated rCBF as related to subjects' reports of flashback intensity.Methods Subjects with varying traumatic histories and longstanding PTSD were studied using [15O]-H2O positron emission tomography with an auditory script of their traumatic event. Eight subjects had three resting scans followed by their script and additional scans. Heart rate responses as well as the presence of flashbacks and their intensity were recorded. rCBF was correlated with flashback intensity in each subject's scan. Combined analysis of all subjects' data yielded common regions related to the flashback experience.Results rCBF correlated directly with flashback intensity in the brainstem, lingula, bilateral insula, right putamen and left hippocampal and perihippocampal, somatosensory and cerebellar regions. Inverse correlations with rCBF were found in bilateral dorsolateral prefrontal, right fusiform and right medial temporal cortices.Conclusions This study correlated flashback intensity and rCBF in a group of patients with chronic PTSD suggesting involvement of brainstem, and areas associated with motor control, complex visual/spatial cues and memory.

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Crossref · 10.1016/s0006-3223(01)01107-6

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Authors
Osuch, E. A., Benson, B., Geraci, M., Podell, D., Herscovitch, P., McCann, U. D., & Post, R. M.
Affiliations
  • Uniformed Services University of the Health Sciences (US)
  • National Institutes of Health (US)
  • Johns Hopkins University (US)
Corresponding author
Post, Robert M
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2001-08
Volume
50
Issue
4
Pages
246-253
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2062011348
Cited by
204
References
26
Citations by year
2026: 2 · 2025: 5 · 2024: 12 · 2023: 7 · 2022: 7 · 2021: 4 · 2020: 13 · 2019: 12 · 2018: 8 · 2017: 10 · 2016: 8 · 2015: 8 · 2014: 10 · 2013: 9 · 2012: 9
FWCI
8.86
Type
journal article
Language
en
Open access
closed
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
post-traumatic stress disorder, flashbacks, regional cerebral blood flow, 15O-water PET, brainstem, insula, hippocampus, prefrontal cortex, somatosensory cortex, cerebellum, memory, heart rate response
MeSH terms
Adult, Brain, Cerebrovascular Circulation, Chronic Disease, Cues, Female, Heart Rate, Humans, Male, Middle Aged, Severity of Illness Index, Space Perception, Stress Disorders, Post-Traumatic, Tomography, Emission-Computed, Visual Perception

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