Cited by 146Posttraumatic Stress Disorder ResearchMemory and Neural MechanismsTraumatic Brain Injury Research

Reduced neural activation during an inhibition task is associated with impaired fear inhibition in a traumatized civilian sample

Open access
Jovanovic, Tanja, Ely, Tim, Fani, Negar, Glover, Ebony M., Gutman, David, Tone, Erin B., Norrholm, Seth D., Bradley, Bekh +1 more·2013·Cortex

Abstract

Introduction Impaired inhibition of fear in the presence of safety cues and a deficiency in the extinction of fear cues are increasingly thought to be important biological markers of Posttraumatic stress disorder (PTSD). Other studies have suggested that there may be altered neural activation during behavioral inhibition tasks in subjects with PTSD. The current study aimed to see whether neural activation during inhibition was reduced in a highly traumatized civilian population, and whether atypical activation was associated with impaired fear inhibition. Methods The participants were 41 traumatized women (20 PTSD+, 21 PTSD-) recruited from Grady Memorial Hospital in Atlanta, GA. We used a Go/NoGo procedure with functional magnetic resonance imaging (fMRI) in a high-resolution 3T scanner. Participants were instructed to press a button whenever an "X" or "O" appeared on the screen, but not if a red square appeared behind the letter. Participants were assessed for trauma history and PTSD diagnosis, and completed a fear-potentiated startle and extinction paradigm. Results We found stronger activation in the ventromedial prefrontal cortex (vmPFC) in traumatized subjects without PTSD compared to those with PTSD in the NoGo greater than Go contrast condition. Activation in the vmPFC was negatively correlated with fear-potentiated startle responses during safety signal learning (p = .02) and fear extinction (p = .0002). Conclusions These results contribute to understanding of how the neural circuitry involved in inhibitory processes may be deficient in PTSD. Furthermore, the same circuits involved in behavioral inhibition appear to be involved in fear inhibition processes during differential fear conditioning and extinction.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.cortex.2012.08.011

Cites

40 of 40 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • Inhibition in the stop signal task correlated with a physiological measure of threat extinction in a fear-potentiated startle paradigm outside of the scanner.

    “Inhibition in this task correlated with a physiological measure of threat extinction in a fear-potentiated startle paradigm outside of the scanner.”

    From Prefrontal cortex, amygdala, and threat processing: implications for PTSD (2022) · cites this paper as [174]

    The Results (§3.4; page not provided) report that vmPFC activation during a NoGo>Go contrast correlated with fear-potentiated startle during late extinction. The Methods (§2.3–2.4; pages not provided) identify the scanner task as Go/NoGo, not a stop-signal task, and state that startle and MRI were assessed at separate visits. The reported correlation concerns neural activation during response inhibition, not inhibition performance on a stop-signal task. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Jovanovic et al. found lower vmPFC activation during a simple stop signal (Go/No-go) task related to behavioral inhibition in civilians with PTSD.

    “In another approach to this issue, Jovanovic et al. [174] found lower vmPFC activation during a simple stop signal (or “Go/No-go”) task related to behavioral inhibition in civilians with PTSD.”
  • The same circuits involved in behavioral inhibition appear to be involved in fear inhibition processes during differential threat conditioning and extinction.

    “These data suggested that the same circuits involved in behavioral inhibition appear to be involved in fear inhibition processes during differential threat conditioning and extinction.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

2 of the 42 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Binder EB Bradley RG Liu W Epstein MP Deveau TC Mercer KB Tang Y Gillespie CF Heim CM Nemeroff CB Schwartz AC Cubells JF Ressler KJ Association of FKBP5 Polymorphisms and Childhood Abuse With Risk of Posttraumatic Stress Disorder Symptoms in Adults Journal of the Americal Medical Association 299 11 1291 1305 2008 PMC2441757 18349090
  2. Pavlov IP Conditioned Reflexes Oxford University Press 1927

Cited by

Sorted by citations

Authors
Jovanovic, T., Ely, T., Fani, N., Glover, E. M., Gutman, D., Tone, E. B., Norrholm, S. D., Bradley, B., & Ressler, K. J.
Affiliations
  • Emory University (US)
  • Georgia State University (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Ressler, Kerry J.
Venue
Cortex
Publisher
Elsevier BV
Published
2013-07
Volume
49
Issue
7
Pages
1884-1891
ISSN
0010-9452 (ISSN-L)
OpenAlex
W2012861810
Cited by
146
References
42
Citations by year
2026: 8 · 2025: 10 · 2024: 9 · 2023: 3 · 2022: 9 · 2021: 13 · 2020: 11 · 2019: 13 · 2018: 13 · 2017: 9 · 2016: 17 · 2015: 13 · 2014: 7 · 2013: 11
FWCI
11.28
Type
journal article
Language
en
Open access
Locations
  • Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Archive @ GSU (submittedVersion)
  • Counseling And Psychological Services Dissertations (Georgia State University) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • Wellcome Trust
  • National Institutes of Health (UL1TR000454)
  • National Institute of Mental Health (MH 071537, MH092576, R21MH098212, R01MH096764, R01MH071537, R21MH092576, R56MH071537)
  • National Center for Research Resources (M01-RR00039, M01RR000039)
  • National Center for Advancing Translational Sciences
Topics
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
Keywords
post-traumatic stress disorder, fear inhibition, behavioral inhibition, ventromedial prefrontal cortex, neuronal activation, fear extinction, fear potentiation, safety signals, differential fear conditioning, go/no-go task, fear-potentiated startle
MeSH terms
Adult, Anxiety, Black or African American, Electromyography, Extinction, Psychological, Fear, Female, Humans, Image Processing, Computer-Assisted, Inhibition, Psychological, Magnetic Resonance Imaging, Middle Aged, Neuropsychological Tests, Photic Stimulation, Psychomotor Performance, Reflex, Startle, Stress Disorders, Post-Traumatic, Urban Population, Prefrontal Cortex, Diagnostic and Statistical Manual of Mental Disorders, Young Adult

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