Evidence map›Paper›PMID 26167716›Full record

Trial reportExperimental and clinical psychopharmacology2015

Marijuana's acute effects on cognitive bias for affective and marijuana cues.

Jane Metrik, Elizabeth R Aston, Christopher W Kahler, Damaris J Rohsenow, John E McGeary, Valerie S Knopik

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Experimental and clinical psychopharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Intentions matter: How planned and unplanned alcohol and cannabis use influences outcomes.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2026
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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

6 authors at 3 institutions in 1 country.

Jane MetrikProvidence VA Medical Center.ORCID 0000-0001-9727-3838
Elizabeth R AstonCenter for Alcohol and Addiction Studies, Brown University.
Christopher W KahlerCenter for Alcohol and Addiction Studies, Brown University.
Damaris J RohsenowProvidence VA Medical Center.
John E McGearyProvidence VA Medical Center.
Valerie S KnopikAlpert Medical School, Brown University.
Providence VA Medical Center · USJohn Brown University · USBrown University · US

Funding

ALCOHOL INTERVENTION/TREATMENT OUTCOME RESEARCH TRAININGT32AA007459 · NIAAA · BROWN UNIVERSITY · PI ROBERT MIRANDA, PETER M. MONTI · 1986 to 2026
$13.3M
Genetic variation and marijuana's pharmacologic and cue-elicted effectsR03DA027484 · NIDA · BROWN UNIVERSITY · PI KNOPIK, VALERIE S, METRIK, JANE · 2009 to 2010
$483k
NIAAA NIH HHS T32 AA007459NIDA NIH HHS R03 DA027484
6 · The paper itself

Abstract

Marijuana produces acute increases in positive subjective effects and decreased reactivity to negative affective stimuli, though may also acutely induce anxiety. Implicit attentional and evaluative processes may explicate marijuana's ability to acutely increase positive and negative emotions. This within-subjects study examined whether smoked marijuana with 2.7-3.0% delta-9-tetrahydrocannabinol (THC), relative to placebo, acutely changed attentional processing of rewarding and negative affective stimuli as well as marijuana-specific stimuli. On 2 separate days, regular marijuana users (N = 89) smoked placebo or active THC cigarette and completed subjective ratings of mood, intoxication, urge to smoke marijuana, and 2 experimental tasks: pleasantness rating (response latency and perceived pleasantness of affective and marijuana-related stimuli) and emotional Stroop (attentional bias to affective stimuli). On the pleasantness rating task, active marijuana increased response latency to negatively valenced and marijuana-related (vs. neutral) visual stimuli, beyond a general slowing of response. Active marijuana also increased pleasantness ratings of marijuana images, although to a lesser extent than placebo due to reduced marijuana urge after smoking. Overall, active marijuana did not acutely change processing of positive emotional stimuli. There was no evidence of attentional bias to affective word stimuli on the emotional Stroop task with the exception of attentional bias to positive word stimuli in the subgroup of marijuana users with cannabis dependence. Marijuana may increase allocation of attentional resources toward marijuana-specific and negatively valenced visual stimuli without altering processing of positively valenced stimuli. Marijuana-specific cues may be more attractive with higher levels of marijuana craving and less wanted with low craving levels.

Indexed as

RewardAdolescentAdultAffectCognitionCravingCuesDouble-Blind MethodDronabinolFemaleHumansMaleMarijuana AbuseMarijuana SmokingReaction TimeStroop TestDronabinol

Identifiers

PMID26167716
PMCPMC4578985
OpenAlexW2399880743

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.