Evidence map›Paper›PMID 34732695›Full record

Trial reportTranslational psychiatry2021

Expectancy effects on serotonin and dopamine transporters during SSRI treatment of social anxiety disorder: a randomized clinical trial.

Olof R Hjorth, Andreas Frick, Malin Gingnell, Johanna M Hoppe, Vanda Faria, Sara Hultberg, Iman Alaie, Kristoffer N T Månsson, Jörgen Rosén, Margareta Reis and 6 more

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Translational psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
5.7field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Social anxiety and the positive valence system: A scoping review.Journal of mood and anxiety disorders · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Dopamine, Immunity, and Disease.Pharmacological reviews · 2023
    Review
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  16. Article
  17. Article
  18. Review
  19. Article
  20. Review
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

16 authors at 3 institutions in 4 countries.

Olof R HjorthDepartment of Psychology, Uppsala University, Uppsala, Sweden. olof.hjorth@psyk.uu.se.ORCID 0000-0002-4784-5196
Andreas FrickDepartment of Psychology, Uppsala University, Uppsala, Sweden.ORCID 0000-0003-2516-9075
Malin GingnellDepartment of Psychology, Uppsala University, Uppsala, Sweden.
Johanna M HoppeDepartment of Psychology, Uppsala University, Uppsala, Sweden.
Vanda FariaDepartment of Psychology, Uppsala University, Uppsala, Sweden.
Sara HultbergDepartment of Psychology, Uppsala University, Uppsala, Sweden.
Iman AlaieDepartment of Neuroscience, Child and Adolescent Psychiatry, Uppsala University, Uppsala, Sweden.
Kristoffer N T MånssonCenter for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Jörgen RosénDepartment of Psychology, Uppsala University, Uppsala, Sweden.
Margareta ReisDepartment of Biomedical And Clinical Sciences, Linköping University, Linköping, Sweden.ORCID 0000-0002-6041-0744
Kurt WahlstedtDepartment of Psychology, Uppsala University, Uppsala, Sweden.
My JonassonDepartment of of Surgical Sciences/Nuclear Medicine and PET, Uppsala University, Uppsala, Sweden.
Mark LubberinkDepartment of of Surgical Sciences/Nuclear Medicine and PET, Uppsala University, Uppsala, Sweden.
Gunnar AntoniDepartment of Medicinal Chemistry, Uppsala University, Uppsala, Sweden.
Mats FredriksonDepartment of Psychology, Uppsala University, Uppsala, Sweden.
Tomas FurmarkDepartment of Psychology, Uppsala University, Uppsala, Sweden.ORCID 0000-0001-6821-9058
Uppsala University · SEKarolinska Institutet · SELinköping University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has been extensively debated whether selective serotonin reuptake inhibitors (SSRIs) are more efficacious than placebo in affective disorders, and it is not fully understood how SSRIs exert their beneficial effects. Along with serotonin transporter blockade, altered dopamine signaling and psychological factors may contribute. In this randomized clinical trial of participants with social anxiety disorder (SAD) we investigated how manipulation of verbally-induced expectancies, vital for placebo response, affect brain monoamine transporters and symptom improvement during SSRI treatment. Twenty-seven participants with SAD (17 men, 10 women), were randomized, to 9 weeks of overt or covert treatment with escitalopram 20 mg. The overt group received correct treatment information whereas the covert group was treated deceptively with escitalopram, described as an active placebo in a cover story. Before and after treatment, patients underwent positron emission tomography (PET) assessments with the [

Indexed as

Phobia, SocialSerotoninCitalopramDopamineEscitalopramFemaleHumansMaleSelective Serotonin Reuptake InhibitorsSerotonin Plasma Membrane Transport ProteinsCitalopramDopamineEscitalopramSelective Serotonin Reuptake InhibitorsSerotoninSerotonin Plasma Membrane Transport Proteins

Identifiers

PMID34732695
PMCPMC8566580
OpenAlexW3208201339

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.