Evidence map›Paper›PMID 34505940›Full record

SynthesisPsychopharmacology2021

Patterns of brain function associated with cannabis cue-reactivity in regular cannabis users: a systematic review of fMRI studies.

Hannah Sehl, Gill Terrett, Lisa-Marie Greenwood, Magdalena Kowalczyk, Hannah Thomson, Govinda Poudel, Victoria Manning, Valentina Lorenzetti

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
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  8. Review
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  12. Chronic ΔNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  13. Article
  14. Similarities and Differences in Neuroimaging.Advances in experimental medicine and biology · 2025
    Review
  15. Review
  16. Article
  17. Cannabis use disorder: from neurobiology to treatment.The Journal of clinical investigation · 2024
    Review
  18. Article
  19. Article
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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

8 authors at 3 institutions in 1 country.

Hannah SehlNeuroscience of Addiction and Mental Health Program, Healthy Brain and Mind Research Centre, School of Behavioural and Health Sciences, Faculty of Health Sciences, Australian Catholic University, Melbourne, Daniel Mannix building, 17 Young Street, Fitzroy, VIC, 3065, Australia.
Gill TerrettNeuroscience of Addiction and Mental Health Program, Healthy Brain and Mind Research Centre, School of Behavioural and Health Sciences, Faculty of Health Sciences, Australian Catholic University, Melbourne, Daniel Mannix building, 17 Young Street, Fitzroy, VIC, 3065, Australia.
Lisa-Marie GreenwoodResearch School of Psychology, Australian National University, Canberra, Australia.
Magdalena KowalczykNeuroscience of Addiction and Mental Health Program, Healthy Brain and Mind Research Centre, School of Behavioural and Health Sciences, Faculty of Health Sciences, Australian Catholic University, Melbourne, Daniel Mannix building, 17 Young Street, Fitzroy, VIC, 3065, Australia.
Hannah ThomsonNeuroscience of Addiction and Mental Health Program, Healthy Brain and Mind Research Centre, School of Behavioural and Health Sciences, Faculty of Health Sciences, Australian Catholic University, Melbourne, Daniel Mannix building, 17 Young Street, Fitzroy, VIC, 3065, Australia.
Govinda PoudelMary Mackillop Institute for Health Research, Australian Catholic University, Melbourne, Australia.
Victoria ManningTurning Point, Eastern Health, Monash University, Melbourne, Australia.
Valentina LorenzettiNeuroscience of Addiction and Mental Health Program, Healthy Brain and Mind Research Centre, School of Behavioural and Health Sciences, Faculty of Health Sciences, Australian Catholic University, Melbourne, Daniel Mannix building, 17 Young Street, Fitzroy, VIC, 3065, Australia. valentina.lorenzetti@gmail.com.ORCID http://orcid.org/0000-0002-5917-7068
Australian Catholic University · AUAustralian National University · AUEastern Health · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleRegular cannabis use (i.e. ≥ monthly) is highly prevalent, with past year use being reported by ~ 200 million people globally.High reactivity to cannabis cues is a key feature of regular cannabis use and has been ascribed to greater cannabis exposure and craving, but the underlying neurobiology is yet to be systematically integrated.

objectivesWe aim to systematically summarise the findings from fMRI studies which examined brain function in cannabis users while exposed to cannabis vs neutral stimuli during a cue-reactivity fMRI task.

methodsA systematic search of PsycINFO, PubMed and Scopus databases was pre-registered in PROSPERO (CRD42020171750) and conducted following PRISMA guidelines. Eighteen studies met inclusion/exclusion criteria. Samples comprised 918 participants (340 female) aged 16-38 years. Of these, 603 were regular cannabis users, and 315 were controls.

resultsThe literature consistently reported greater brain activity in cannabis users while exposed to cannabis vs neutral stimuli in three key brain areas: the striatum, the prefrontal (anterior cingulate, middle frontal) and the parietal cortex (posterior cingulate/precuneus) and additional brain regions (hippocampus, amygdala, thalamus, occipital cortex). Preliminary correlations emerged between cannabis craving and the function of partially overlapping regions (amygdala, striatum, orbitofrontal cortex ).

conclusionsExposure to cannabis-cues may elicit greater brain function and thus trigger cravings in regular cannabis users and thus trigger cannabis craving. Standardised and longitudinal assessments of cannabis use and related problems are required to profile with greater precision the neurobiology of cannabis cue-reactivity, and its role in predicting  cravings and relapse.

Indexed as

CannabisMarijuana AbuseBrainCuesHumansMagnetic Resonance ImagingBrainCannabisCravingCue-reactivityfMRIFunctional magnetic resonance imagingNeuroimaging

Identifiers

PMID34505940
PMCPMC8455486
OpenAlexW3196442177

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.