Evidence map›Paper›PMID 28620722›Full record

ArticlePrevention science : the official journal of the Society for Prevention Research2018

Testing the Amotivational Syndrome: Marijuana Use Longitudinally Predicts Lower Self-Efficacy Even After Controlling for Demographics, Personality, and Alcohol and Cigarette Use.

Andrew Lac, Jeremy W Luk

Abstract read
In one paragraph

Article in Prevention science : the official journal of the Society for Prevention Research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

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

  1. Nonacute effects of cannabis use on motivation and reward sensitivity in humans: A systematic review.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2018
    Pooled it
  2. Trial
  3. Article
  4. Clinical Associations and Possible Risk Factors for Affective Neuropsychiatric Symptoms in Older Adults With and Without Cognitive Impairment.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2026
    Article
  5. Article
  6. Understanding the Role of Endocannabinoids in Posttraumatic Stress Disorder.International journal of molecular sciences · 2025
    Review
  7. Chronic ΔNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Effort-related decision making and cannabis use among college students.Experimental and clinical psychopharmacology · 2023
    Article
  14. Article
  15. Review
  16. Article
  17. The Effects of ConsumingMedical cannabis and cannabinoids · 2022
    Article
  18. Subjective reward processing and catechol-Frontiers in psychiatry · 2022
    Article
  19. Article
  20. 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

2 authors.

Andrew LacDepartment of Psychology, University of Colorado Colorado Springs, 1420 Austin Bluffs Pkwy, Colorado Springs, CO, 80918, USA. alac@uccs.edu.ORCID 0000-0002-8035-3628
Jeremy W LukHealth Behavior Branch Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive MSC 7004, Bethesda, MD, 20817, USA.

Funding

Alcohol Research in the Science/Practitioner ModelT32AA013525 · NIAAA · SAN DIEGO STATE UNIVERSITY · PI EDWARD P RILEY, ANDREA SPADONI TOWNSEND · 2002 to 2026
$8.4M
NIAAA NIH HHS L30 AA024314NIAAA NIH HHS T32 AA013525
6 · The paper itself

Abstract

The marijuana amotivational syndrome posits that cannabis use fosters apathy through the depletion of motivation-based constructs such as self-efficacy. The current study pursued a two-round design to rule out concomitant risk factors responsible for the connection from marijuana intake to lower general self-efficacy. College students (N = 505) completed measures of marijuana use, demographics (age, gender, and race), personality (extraversion, agreeableness, conscientiousness, openness, and neuroticism), other substance use (alcohol and tobacco), and general self-efficacy (initiative, effort, and persistence) in two assessments separated by a month. Hierarchical regression models found that marijuana use forecasted lower initiative and persistence, even after statistically ruling out 13 pertinent baseline covariates including demographics, personality traits, alcohol use, tobacco use, and self-efficacy subscales. A cross-lagged panel model involving initiative, effort, persistence, alcohol use, cigarette use, and marijuana use sought to unravel the temporal precedence of processes. Results showed that only marijuana (but not alcohol or tobacco) intake significantly and longitudinally prompted lower initiative and persistence. Furthermore, in the same model, the opposite temporal direction of events from lower general self-efficacy subscales to marijuana use was untenable. Findings provide partial support for the marijuana amotivational syndrome, underscore marijuana as a risk factor for decreased general self-efficacy, and offer implications and insights for marijuana prevention and future research.

Indexed as

Alcohol DrinkingDemographyPersonalitySelf EfficacySmokingAdolescentApathyFemaleHumansMaleMarijuana UseRegression AnalysisSurveys and QuestionnairesUniversitiesYoung AdultAmotivational syndromeCross-lagged panel modelingGeneral self-efficacyLongitudinalMarijuana

Identifiers

PMID28620722
PMCPMC5732901

What OpenQuestion holds

Textmetadata
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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.