Evidence map›Paper›PMID 27649775›Full record

ArticleJournal of psychopharmacology (Oxford, England)2017

Altered reward expectancy in individuals with recent methamphetamine dependence.

Amanda Bischoff-Grethe, Colm G Connolly, Stephan J Jordan, Gregory G Brown, Martin P Paulus, Susan F Tapert, Robert K Heaton, Steven P Woods, Igor Grant, TMARC Group

Open access · greenAbstract read
In one paragraph

Article in Journal of psychopharmacology (Oxford, England), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 31% 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

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

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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

10 authors at 2 institutions in 1 country.

Amanda Bischoff-Grethe1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
Colm G Connolly1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
Stephan J Jordan1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
Gregory G Brown1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
Martin P Paulus1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
Susan F Tapert1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
Robert K Heaton1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
Steven P Woods1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
Igor Grant1 Department of Psychiatry, University of California, San Diego, La Jolla, USA.
TMARC Group
University of California, San Diego · USVA San Diego Healthcare System · US

Funding

STRUCTURAL NEUROIMAGING COREP30MH062512 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DAVID J MOORE · 2001 to 2026
$50.4M
Translational Methamphetamine AIDS Research Center (TMARC)P50DA026306 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GRANT, IGOR · 2009 to 2018
$33.9M
NIDA NIH HHS P50 DA026306NIMH NIH HHS P30 MH062512
6 · The paper itself

Abstract

backgroundChronic methamphetamine use may lead to changes in reward-related function of the ventral striatum and caudate nucleus. Whether methamphetamine-dependent individuals show heightened reactivity to positively valenced stimuli (i.e. positive reinforcement mechanisms), or an exaggerated response to negatively valenced stimuli (i.e. driven by negative reinforcement mechanisms) remains unclear. This study investigated neural functioning of expectancy and receipt for gains and losses in adults with (METH+) and without (METH-) histories of methamphetamine dependence.

methodsParticipants (17 METH+; 23 METH-) performed a probabilistic feedback expectancy task during blood-oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI). Participants were given visual cues probabilistically associated with monetary gain, loss, or neutral outcomes. General linear models examined the BOLD response to: (1) anticipation of gains and losses, and (2) gain and loss monetary outcomes.

resultsMETH+ had less BOLD response to loss anticipation than METH- in the ventral striatum and posterior caudate. METH+ also showed more BOLD response to loss outcomes than to gain outcomes in the anterior and posterior caudate, whereas METH- did not show differential responses to the valence of outcomes. DISCUSSION: METH+ individuals showed attenuated neural response to anticipated gains and losses, but their response to loss outcomes was greater than to gain outcomes. A decreased response to loss anticipation, along with a greater response to loss outcomes, suggests an altered ability to evaluate future risks and benefits based upon prior experience, which may underlie suboptimal decision-making in METH+ individuals that increases the likelihood of risky behavior.

Indexed as

AdultAmphetamine-Related DisordersCaudate NucleusCuesDecision MakingFemaleHumansMagnetic Resonance ImagingMaleMethamphetamineReinforcement, PsychologyRewardVentral StriatumMethamphetamineanticipationfMRIMethamphetaminereceiptrewardstriatum

Identifiers

PMID27649775
PMCPMC5225125
OpenAlexW2522147970

What OpenQuestion holds

Textmetadata
LicenceTDM
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.