ArticleDrug and alcohol dependence2020
Recreational cannabis use impairs driving performance in the absence of acute intoxication.
Article in Drug and alcohol dependence, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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
28 citing papers in PubMed, 59 citations in OpenAlex.
- Cannabis in road traffic - a retrospective analysis to identify possible cut-off-values.Forensic science, medicine, and pathology · 2026Article
- The use of THC cutoff levels in blood and oral fluid for detecting impairment in frequent cannabis users who smoked cannabis the "evening before".Psychopharmacology · 2026Article
- Medical Cannabis Legalization and its Association with Cannabis use, Cannabis use Disorder, and Intoxicated Driving: Findings from the National Survey on Drug use and Health, 2016-2019.Community mental health journal · 2026Article
- Short-term residual effects of smoked cannabis on simulated driving performance.Psychopharmacology · 2026Article
- Driving by frequent cannabis users 'the morning after' last use of smoked cannabis: an observational driving simulator study.Journal of cannabis research · 2026Article
- Something is not nothing: Hair-tested substance use and cognitive functions in a large community sample of young adults.European psychiatry : the journal of the Association of European Psychiatrists · 2026Article
- Health Service Use Among Young Adults With a History of Adolescent Cannabis Use.JAMA network open · 2025Article
- Investigating sex differences and age of onset in emotion regulation, executive functioning, and cannabis use in adolescents and young adults.Journal of cannabis research · 2024Article
- Adult use of highly-potent Δ9-THC cannabis concentrate products by U.S. state cannabis legalization status, 2021.Addictive behaviors · 2023Article
- Interpol review of toxicology 2019-2022.Forensic science international. Synergy · 2023Review
- Driving under the influence of cannabis: perceptions from Canadian youth.BMC public health · 2022Article
- Attentional function and inhibitory control in different substance use disorders.Psychiatry research · 2022Article
- The effects of oral and vaporized cannabis alone, and in combination with alcohol, on driving performance using the STISIM driving simulator: A two-part, double-blind, double-dummy, placebo-controlled, randomized crossover clinical laboratory protocol.Frontiers in pharmacology · 2022Article
- Driving under the influence of drugs: Correlation between blood psychoactive drug concentrations and cognitive impairment. A narrative review taking into account forensic issues.Forensic science international. Synergy · 2022Review
- Therapeutic use of psilocybin: Practical considerations for dosing and administration.Frontiers in psychiatry · 2022Review
- Use of highly-potent cannabis concentrate products: More common in U.S. states with recreational or medical cannabis laws.Drug and alcohol dependence · 2021Article
- Preliminary Eye-Tracking Data as a Nonintrusive Marker for Blood Δ-9-Tetrahydrocannabinol Concentration and Drugged Driving.Cannabis and cannabinoid research · 2021Article
- A rapid assay provides on-site quantification of tetrahydrocannabinol in oral fluid.Science translational medicine · 2021Article
- Preliminary Evidence for Cannabis and Nicotine Urinary Metabolites as Predictors of Verbal Memory Performance and Learning Among Young Adults.Journal of the International Neuropsychological Society : JINS · 2021Article
- Rethinking Cell Phone Use While Driving: Isolated Risk Behavior or a Pattern of Risk-Taking Associated with Impulsivity in Young Drivers?International journal of environmental research and public health · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundAcross the nation, growing numbers of individuals are exploring the use of cannabis for medical or recreational purposes, and the proportion of cannabis-positive drivers involved in fatal crashes increased from 8 percent in 2013 to 17 percent in 2014, raising concerns about the impact of cannabis use on driving. Previous studies have demonstrated that cannabis use is associated with impaired driving performance, but thus far, research has primarily focused on the effects of acute intoxication.
methodsThe current study assessed the potential impact of cannabis use on driving performance using a customized driving simulator in non-intoxicated, heavy, recreational cannabis users and healthy controls (HCs) without a history of cannabis use.
resultsOverall, cannabis users demonstrated impaired driving relative to HC participants with increased accidents, speed, and lateral movement, and reduced rule-following. Interestingly, however, when cannabis users were divided into groups based on age of onset of regular cannabis use, significant driving impairment was detected and completely localized to those with early onset (onset before age 16) relative to the late onset group (onset ≥16 years old). Further, covariate analyses suggest that impulsivity had a significant impact on performance differences.
conclusionsChronic, heavy, recreational cannabis use was associated with worse driving performance in non-intoxicated drivers, and earlier onset of use was associated with greater impairment. These results may be related to other factors associated with early exposure such as increased impulsivity.
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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.