Evidence map›Paper›PMID 28948980›Full record

Trial reportNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2018

Neural Underpinnings of Cortisol Effects on Fear Extinction.

Christian Josef Merz, Tanja Christina Hamacher-Dang, Rudolf Stark, Oliver Tobias Wolf, Andrea Hermann

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 4 pooled it
2.8field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 4 syntheses or guidelines pooled it, 84 citations in OpenAlex.

  1. Pooled it
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  5. Randomized controlled experimental study of hydrocortisone and D-cycloserine effects on fear extinction in PTSD.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
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  8. Acute stress leaves fear generalization in healthy individuals intact.Cognitive, affective & behavioral neuroscience · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Christian Josef MerzInstitute of Cognitive Neuroscience, Department of Cognitive Psychology, Ruhr-University Bochum, Bochum, Germany.
Tanja Christina Hamacher-DangInstitute of Cognitive Neuroscience, Department of Cognitive Psychology, Ruhr-University Bochum, Bochum, Germany.
Rudolf StarkDepartment of Psychotherapy and Systems Neuroscience, Justus Liebig University Giessen, Giessen, Germany.
Oliver Tobias WolfInstitute of Cognitive Neuroscience, Department of Cognitive Psychology, Ruhr-University Bochum, Bochum, Germany.
Andrea HermannDepartment of Psychotherapy and Systems Neuroscience, Justus Liebig University Giessen, Giessen, Germany.
Ruhr University Bochum · DEUniversity of Giessen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extinction of conditioned fear embodies a crucial mechanism incorporated in exposure therapy. Clinical studies demonstrated that application of the stress hormone cortisol before exposure sessions facilitates exposure success, but the underlying neural correlates remain unknown. Context- and stimulus-dependent cortisol effects on extinction learning will be characterized in this study and tested in the extinction and in a new context. Forty healthy men participated in a 3-day fear conditioning experiment with fear acquisition in context A (day 1), extinction training in context B (day 2), and recall in context B and a new context C one week later (day 3). Hydrocortisone (30 mg) or placebo was given before extinction training. Blood-oxygen-level-dependent responses and skin conductance responses (SCRs) served as dependent measures. At the beginning of extinction training, cortisol reduced conditioned SCRs, diminished activation of the amygdala-hippocampal complex, and enhanced functional connectivity of the anterior parahippocampal gyrus with the ventromedial prefrontal cortex (vmPFC). After one week, the cortisol group showed increased hippocampal activation and connectivity to the vmPFC toward an extinguished stimulus and reduced insula activation toward a nonextinguished stimulus in the extinction context. However, this inhibitory cortisol effect did not extend to the new context. Taken together, cortisol reduced fear recall at the beginning of extinction and facilitated the consolidation of the extinction memory as evidenced by an inhibitory activation pattern one week later. The stress hormone exerted a critical impact on the amygdala-hippocampus-vmPFC network underlying fear and extinction memories. However, cortisol did not attenuate the context dependency of extinction.

Indexed as

AdultAmygdalaBrain MappingConditioning, ClassicalDouble-Blind MethodExtinction, PsychologicalFearGalvanic Skin ResponseHippocampusHumansHydrocortisoneMagnetic Resonance ImagingMaleMemory ConsolidationMental RecallParahippocampal GyrusHydrocortisone

Identifiers

PMID28948980
PMCPMC5729571
OpenAlexW2760338057

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.