A Fine-Grained Longitudinal Study of Adolescent Cannabis Use and Its Relation to Cognitive Performance in Young Adulthood.

Clarissa Janousch, Urs Grob, Lukas Eggenberger, Lydia Johnson-Ferguson, Denis Ribeaud, Manuel Eisner, Lilly Shanahan, Boris B Quednow

Abstract read

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In one paragraph

Article in International journal of mental health and addiction, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

8 authors.

Clarissa JanouschExperimental Pharmacopsychology and Psychological Addiction Research, Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland.ORCID 0000-0002-4160-9758

Urs GrobInstitute of Education, University of Zurich, Zurich, Switzerland.

Lukas EggenbergerExperimental Pharmacopsychology and Psychological Addiction Research, Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland.

Lydia Johnson-FergusonExperimental Pharmacopsychology and Psychological Addiction Research, Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland.

Denis RibeaudJacobs Center for Productive Youth Development, University of Zurich, Zurich, Switzerland.

Manuel EisnerJacobs Center for Productive Youth Development, University of Zurich, Zurich, Switzerland.

Lilly Shanahan *Jacobs Center for Productive Youth Development, University of Zurich, Zurich, Switzerland.

Boris B Quednow *Experimental Pharmacopsychology and Psychological Addiction Research, Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cannabis use in adolescence has been linked to lower adult cognitive function, but the specific contributions of age of onset and usage frequency remain unclear. This study analyzed data from the Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s11469-025-01604-0.

Indexed as

AddictionCannabis use disorderLatent class growth analysisMarijuanaRiskTetrahydrocannabinol

Identifiers

PMID42859461

DOI10.1007/s11469-025-01604-0

PMCPMC13652876

What OpenQuestion holds

Textmetadata

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Registered trials

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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.