Trial reportPloS one2013
Psychomotor function in chronic daily Cannabis smokers during sustained abstinence.
Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
29 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.
- Weighing the Evidence: A Systematic Review on Long-Term Neurocognitive Effects of Cannabis Use in Abstinent Adolescents and Adults.Neuropsychology review · 2016Pooled it
- Detection of Δ9-Tetrahydrocannabinol Impairment Using Resting-State Functional Near-Infrared Spectroscopy: A Randomized Clinical Trial.JAMA network open · 2026Trial
- Intoxication due to Δ9-tetrahydrocannabinol is characterized by disrupted prefrontal cortex activity.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Trial
- Medical Marijuana Initiation and Simulated Driving Performance Among Mid-to-Late-Life Adults With Chronic Pain: Prospective Observational Feasibility Cohort Study With Matched Controls.JMIR formative research · 2026Observational
- Short-term residual effects of smoked cannabis on simulated driving performance.Psychopharmacology · 2026Article
- Cognitive performance recovery following marijuana cessation in NCAA division I athletes.Frontiers in sports and active living · 2026Article
- Regular cannabis use alters the neural dynamics serving complex motor control.Human brain mapping · 2023Article
- Cognitive Alterations in Addictive Disorders: A Translational Approach.Biomedicines · 2023Review
- Review
- Regular recreational Cannabis users exhibit altered neural oscillatory dynamics during attention reorientation.Psychological medicine · 2023Article
- Assessment of Withdrawal, Mood, and Sleep Inventories After Monitored 3-Week Abstinence in Cannabis-Using Adolescents and Young Adults.Cannabis and cannabinoid research · 2022Article
- Functional brain connectomes reflect acute and chronic cannabis use.Scientific reports · 2022Article
- Cannabis Use and Neuroadaptation: A Call for ΔFrontiers in psychiatry · 2022Article
- Article
- The why behind the high: determinants of neurocognition during acute cannabis exposure.Nature reviews. Neuroscience · 2021Review
- Altered fronto-occipital connectivity during visual selective attention in regular cannabis users.Psychopharmacology · 2021Article
- Impaired driving and legalization of recreational cannabis.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2021Article
- Heavy cannabis use, dependence and the brain: a clinical perspective.Addiction (Abingdon, England) · 2020Review
- The pitfalls of per se thresholds in accurately identifying acute cannabis intoxication at autopsy.Forensic science, medicine, and pathology · 2018Article
- A Judicial Perspective on Expert Testimony in Marijuana Driving Cases.Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2017Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundThe present study assessed psychomotor function in chronic, daily cannabis smokers during 3 weeks continuously monitored abstinence on a secure research unit. We hypothesized that psychomotor performance would improve during abstinence of chronic, daily cannabis smokers. METHODOLOGY/PRINCIPAL
findingsPerformance on the critical tracking (CTT) and divided attention (DAT) tasks was assessed in 19 male chronic, daily cannabis smokers at baseline and after 8, 14-16 and 21-23 days of continuously monitored abstinence. Psychomotor performance was compared to a control group of non-intoxicated occasional drug users. Critical frequency (λ(c)) of the CTT and tracking error and control losses of the DAT were the primary outcome measures. Results showed that chronic cannabis smokers' performance on the CTT (p<0.001) and the DAT (p<0.001) was impaired during baseline relative to the comparison group. Psychomotor performance in the chronic cannabis smokers improved over 3 weeks of abstinence, but did not recover to equivalent control group performance. CONCLUSIONS/SIGNIFICANCE: Sustained cannabis abstinence moderately improved critical tracking and divided attention performance in chronic, daily cannabis smokers, but impairment was still observable compared to controls after 3 weeks of abstinence. Between group differences, however, need to be interpreted with caution as chronic smokers and controls were not matched for education, social economic status, life style and race.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.