ArticlePsychopharmacology2026
Short-term residual effects of smoked cannabis on simulated driving performance.
Article in Psychopharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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
2 citing papers in PubMed.
- 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
- Driving by frequent cannabis users 'the morning after' last use of smoked cannabis: an observational driving simulator study.Journal of cannabis research · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
rationaleBetween periods of use, chronic cannabis consumers may display residual effects on selective cognitive functions, particularly memory and attention. Whether there are comparable deficits in real-world behaviors, such as driving, has not been thoroughly examined.
objectivesThe current study explored the association between driving simulator performance, cannabis use history, and demographic factors after ≥ 48 h of abstinence. Study I examined simulator performance across a broad range of use within 191 healthy cannabis users. Study II compared performance between participants with the highest cannabis use intensity and a non-cannabis-using comparison group.
methodsIn Study I, 191 healthy cannabis users completed a 25-minute simulated drive, following ≥ 48 h of abstinence. In Study II, a pilot study comprising a subset of 18 frequent cannabis users was compared to 12 non-using controls who completed identical driving measures in a separate study. In both studies, the main outcome was the Composite Drive Score (CDS), a global measure of driving performance comprising key driving-related variables, including standard deviation of lateral position.
resultsIn Study I, there was no relationship between CDS, its subtests, measures of cannabis use history, or demographic variables (all ps > 0.10). In Study II, frequent cannabis users and the non-using comparison group did not differ on CDS or performance on its subtests (all ps > 0.40).
conclusionsThe current study did not find evidence of a residual effect of cannabis on simulated driving performance during a short period of cannabis abstinence. Future studies would benefit from inclusion of larger non-cannabis-using comparison groups.
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Registered trials
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