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Blowing Minds: A cross-cultural, longitudinal investigation to unravel the highs and lows of recreational and medicinal cannabis users

2025· article· en· W7117293192 on OpenAlexaboutno aff
Nora de Bode, Emese Kroon, Jia Hua Hsieh, Janna Cousijn

Bibliographic record

VenueComprehensive Psychiatry · 2025
Typearticle
Languageen
FieldPsychology
TopicMental Health Research Topics
Canadian institutionsnot available
FundersNederlandse Organisatie voor Wetenschappelijk Onderzoek
KeywordsCannabisRecreationMental healthCognitionLegislationPopulation

Abstract

fetched live from OpenAlex

Cannabis use is widely on the rise for recreational and medicinal purposes, with the latter often aimed at improving mental health and cognition. Simultaneously, the prevalence of cannabis-related health harms, such as cannabis use disorder (CUD), is increasing. Product potency, route of administration, and preexisting mental health symptoms play a role in the effects of cannabis; however, there is limited research on how broader factors, such as local cannabis legislation and perceptions of use, may influence these outcomes. Moreover, knowledge remains sparse regarding the growing population of medicinal users, predominantly using without medical supervision. Altogether, this illustrates the need for ecologically valid ways to investigate individuals and their cannabis usage within real-world settings. Therefore, this longitudinal, cross-cultural online study examines an international sample of regular recreational and medicinal users (aged 18-65) from different cannabis jurisdictions (e.g., the Netherlands, the United States, Brazil, Canada, and regions in Asia and Africa) in their natural environment via their mobile phone. By using the Experience Sampling Method (ESM), alongside a comprehensive battery of cognition and mental health related assessments over a 2-year period, we aim to gain insight into the short- and long-term mental health and cognitive determinants and consequences of cannabis use, and how these interact with broader, contextual factors, such as legislation. This is one of the first cross-cultural studies assessing both positive and negative effects of cannabis longitudinally, examining the full range of effects that cannabis may have on the individual.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.090
Threshold uncertainty score0.473

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.064
GPT teacher head0.435
Teacher spread0.371 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

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