Evidence map›Paper›PMID 24620756›Full record

ArticleJournal of clinical and experimental neuropsychology2014

Neurocognition in college-aged daily marijuana users.

Mary P Becker, Paul F Collins, Monica Luciana

Abstract read
In one paragraph

Article in Journal of clinical and experimental neuropsychology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

51 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Identifying themes of protective behavioral strategies for marijuana use with structural topic modeling.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2026
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  9. Effort-related decision making and cannabis use among college students.Experimental and clinical psychopharmacology · 2023
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  15. Neuropsychological performance in young adults with cannabis use disorder.Journal of psychopharmacology (Oxford, England) · 2021
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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

3 authors.

Mary P Beckera Department of Psychology, Center for Neurobehavioral Development , University of Minnesota , Minneapolis , MN , USA.
Paul F Collins
Monica Luciana

Funding

Adolescent Brain Development and Effects of Drug AbuseR01DA017843 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI LUCIANA, MONICA · 2004 to 2008
$2.8M
Disrupted development of neural connections by alcohol initiation in adolescenceR01AA020033 · NIAAA · UNIVERSITY OF MINNESOTA · PI LUCIANA, MONICA · 2011 to 2015
$2.7M
NIAAA NIH HHS R01 AA020033NIAAA NIH HHS R01AA020033NIDA NIH HHS R01 DA017843NIDA NIH HHS R01DA017843
6 · The paper itself

Abstract

backgroundMarijuana is the most commonly used illicit substance in the United States. Use, particularly when it occurs early, has been associated with cognitive impairments in executive functioning, learning, and memory.

methodThis study comprehensively measured cognitive ability as well as comorbid psychopathology and substance use history to determine the neurocognitive profile associated with young adult marijuana use. College-aged marijuana users who initiated use prior to age 17 (n = 35) were compared to demographically matched controls (n = 35).

resultsMarijuana users were high functioning, demonstrating comparable IQs to controls and relatively better processing speed. Marijuana users demonstrated relative cognitive impairments in verbal memory, spatial working memory, spatial planning, and motivated decision making. Comorbid use of alcohol, which was heavier in marijuana users, was unexpectedly found to be associated with better performance in some of these areas.

conclusionsThis study provides additional evidence of neurocognitive impairment in the context of adolescent and young adult marijuana use. Findings are discussed in relation to marijuana's effects on intrinsic motivation and discrete aspects of cognition.

Indexed as

AdolescentAdultAge of OnsetCannabisCognition DisordersFemaleHumansMaleUnited StatesYoung AdultDecision makingMarijuanaMemoryNeurocognitionPlanning

Identifiers

PMID24620756
PMCPMC4074777

What OpenQuestion holds

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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.