Evidence map›Paper›PMID 25803496›Full record

ArticleTranslational psychiatry2015

Increased functional connectivity in the resting-state basal ganglia network after acute heroin substitution.

A Schmidt, N Denier, S Magon, E-W Radue, C G Huber, A Riecher-Rossler, G A Wiesbeck, U E Lang, S Borgwardt, M Walter

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 10% 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Excessive Exercise-A Meta-Review.Frontiers in psychiatry · 2020
    Pooled it
  2. Pooled it
  3. Trial
  4. From rest to focus: pharmacological modulation of the relationship between resting state dorsal attention network dynamics and task-based brain activation.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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  7. Trial
  8. Review
  9. Dissociable effects of LSD and MDMA on striato-cortical connectivity in healthy subjects.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
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  16. Article
  17. Diagnostic and Predictive Neuroimaging Biomarkers for Posttraumatic Stress Disorder.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2020
    Article
  18. Review
  19. Article
  20. Article
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

10 authors at 2 institutions in 1 country.

A Schmidt1] Department of Psychiatry (UPK), University of Basel, Basel, Switzerland [2] Medical Image Analysis Center, University Hospital Basel, Basel, Switzerland.
N DenierDepartment of Psychiatry (UPK), University of Basel, Basel, Switzerland.
S Magon1] Medical Image Analysis Center, University Hospital Basel, Basel, Switzerland [2] Department of Neurology, University Hospital Basel, Basel, Switzerland.
E-W RadueMedical Image Analysis Center, University Hospital Basel, Basel, Switzerland.
C G HuberDepartment of Psychiatry (UPK), University of Basel, Basel, Switzerland.
A Riecher-RosslerDepartment of Psychiatry (UPK), University of Basel, Basel, Switzerland.
G A WiesbeckDepartment of Psychiatry (UPK), University of Basel, Basel, Switzerland.
U E LangDepartment of Psychiatry (UPK), University of Basel, Basel, Switzerland.
S Borgwardt1] Department of Psychiatry (UPK), University of Basel, Basel, Switzerland [2] Medical Image Analysis Center, University Hospital Basel, Basel, Switzerland [3] Department of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK.
M WalterDepartment of Psychiatry (UPK), University of Basel, Basel, Switzerland.
University of Basel · CHUniversity Hospital of Basel · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reinforcement signals in the striatum are known to be crucial for mediating the subjective rewarding effects of acute drug intake. It is proposed that these effects may be more involved in early phases of drug addiction, whereas negative reinforcement effects may occur more in later stages of the illness. This study used resting-state functional magnetic resonance imaging to explore whether acute heroin substitution also induced positive reinforcement effects in striatal brain regions of protracted heroin-maintained patients. Using independent component analysis and a dual regression approach, we compared resting-state functional connectivity (rsFC) strengths within the basal ganglia/limbic network across a group of heroin-dependent patients receiving both an acute infusion of heroin and placebo and 20 healthy subjects who received placebo only. Subsequent correlation analyses were performed to test whether the rsFC strength under heroin exposure correlated with the subjective rewarding effect and with plasma concentrations of heroin and its main metabolites morphine. Relative to the placebo treatment in patients, heroin significantly increased rsFC of the left putamen within the basal ganglia/limbic network, the extent of which correlated positively with patients' feelings of rush and with the plasma level of morphine. Furthermore, healthy controls revealed increased rsFC of the posterior cingulate cortex/precuneus in this network relative to the placebo treatment in patients. Our results indicate that acute heroin substitution induces a subjective rewarding effect via increased striatal connectivity in heroin-dependent patients, suggesting that positive reinforcement effects in the striatum still occur after protracted maintenance therapy.

Indexed as

AdultBasal GangliaBrainBrain MappingCross-Over StudiesDouble-Blind MethodFemaleHeroinHeroin DependenceHumansMagnetic Resonance ImagingMaleMorphineOpiate Substitution TreatmentRestRewardHeroinMorphine

Identifiers

PMID25803496
PMCPMC4354356
OpenAlexW2041283296

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.