Evidence map›Paper›PMID 24342420›Full record

ArticleDrug and alcohol dependence2014

A voxel-based morphometry study of young occasional users of amphetamine-type stimulants and cocaine.

Scott Mackey, Jennifer L Stewart, Colm G Connolly, Susan F Tapert, Martin P Paulus

Open access · greenAbstract read
In one paragraph

Article in Drug and alcohol dependence, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
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  12. Structural Neuroimaging in Polysubstance Users.Current opinion in behavioral sciences · 2017
    Article
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  14. Review
  15. Review
  16. Review
  17. Dopaminergic system dysfunction in recreational dexamphetamine users.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2015
    Article
  18. Striatal morphology is associated with tobacco cigarette craving.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2015
    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

5 authors at 3 institutions in 1 country.

Scott MackeyDepartment of Psychiatry, University of California, San Diego, 8939 Villa La Jolla Drive suite 200, La Jolla, CA 92037, USA. Electronic address: msmackey@ucsd.edu.
Jennifer L StewartDepartment of Psychiatry, University of California, San Diego, 8939 Villa La Jolla Drive suite 200, La Jolla, CA 92037, USA.
Colm G ConnollyDepartment of Psychiatry, University of California, San Francisco, San Francisco, CA 94143, USA.
Susan F TapertDepartment of Psychiatry, University of California, San Diego, 8939 Villa La Jolla Drive suite 200, La Jolla, CA 92037, USA.
Martin P PaulusDepartment of Psychiatry, University of California, San Diego, 8939 Villa La Jolla Drive suite 200, La Jolla, CA 92037, USA; Veterans Affairs San Diego Healthcare System, La Jolla, CA 92037, USA.
University of California, San Diego · USUniversity of California, San Francisco · USVA San Diego Healthcare System · US

Funding

Neuroimaging CoreP20DA027843 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SCHULTEIS, GERHARD G · 2010 to 2013
$3.5M
NEUROBIOLOGY OF TRANSITION TO STIMULANT DEPENDENCER01DA016663 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PAULUS, MARTIN P. · 2004 to 2010
$2.8M
Negative reinforcement and interoceptive dysfunction in stimulant dependence.R01DA027797 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PAULUS, MARTIN P. · 2009 to 2013
$1.7M
STIMULANT DEPENDENCE: NEURAL MECHANISMS OF RELAPSER01DA018307 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PAULUS, MARTIN P. · 2004 to 2008
$1.3M
NIDA NIH HHS P20-DA027834NIDA NIH HHS P20 DA027843NIDA NIH HHS R01 DA016663NIDA NIH HHS R01-DA016663NIDA NIH HHS R01 DA018307NIDA NIH HHS R01 DA027797NIDA NIH HHS R01-DA027797
6 · The paper itself

Abstract

backgroundAlthough the interaction of brain volume with amphetamine-type stimulants (ATS) and cocaine has been investigated in chronically dependent individuals, little is known about structural differences that might exist in individuals who consume ATS and cocaine occasionally but are not dependent on these drugs.

methodsRegional brain volumes in 165 college aged occasional users of ATS (namely: amphetamine, methamphetamine, methylphenidate, and 3,4-methylenedioxymethamphetamine; MDMA) and cocaine were compared by voxel-based morphometry with 48 ATS/cocaine-naive controls.

resultsGrey matter volume was significantly higher in the left ventral anterior putamen of occasional users, and lower in the right dorsolateral cerebellum and right inferior parietal cortex. A regression in users alone on lifetime consumption of combined ATS (namely: amphetamine, methamphetamine, methylphenidate and MDMA) and cocaine use revealed that individuals who used more ATS/cocaine had greater volume in the right ventromedial frontal cortex. A second regression on lifetime consumption of ATS with cocaine as a covariate revealed that individuals with a greater history of ATS use alone had more grey matter volume in the left mid-insula. Interestingly, structural changes in the ventromedial prefrontal cortex, insula and striatum have been consistently observed in volumetric studies of chronic ATS and cocaine dependence.

conclusionThe present results suggest that these three brain regions may play a role in stimulant use even in early occasional users.

Indexed as

Drug UsersAge FactorsAmphetaminesBrainCentral Nervous System StimulantsCocaineCross-Sectional StudiesFemaleHumansMagnetic Resonance ImagingMaleYoung AdultAmphetaminesCentral Nervous System StimulantsCocaineAmphetamine-type stimulantsCocaineOccasionalStructural neuroimagingVoxel-based morphometry

Identifiers

PMID24342420
PMCPMC3943469
OpenAlexW2001832353

What OpenQuestion holds

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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.