Alcohol
Participants in this condition will receive the standard alcohol dose
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This is a randomized, parallel-group study designed to explore the differences between cannabis intoxication, alcohol intoxication and co-intoxication involving both alcohol and cannabis, utilizing electroencephalography (EEG) as well as more traditional intoxication measures such as breath alcohol concentration and balance metrics. If eligible for the study, participants will be randomized to complete one study session in our mobile laboratory, during which they will use either alcohol, cannabis (which will be self-administered, ad libitum) or both alcohol and cannabis.
Locally preserved from ClinicalTrials.govOpen ClinicalTrials.govlast source update 2026-08-11
What this record can show
This locally preserved record separates the registered protocol from source-reported registry results. Neither is a treatment recommendation.
Registry facts
Linked local records
Local links use governed condition terms or exact source-reported intervention names. They are navigation candidates, not efficacy claims.
Interventions
Participants in this condition will receive the standard alcohol dose
Participants in this group will self-administer legal-market flower cannabis
Eligibility
primary outcomes
Time frame: Immediately pre-substance use, 1-hour post-use, 2-hours post-use, 4-hours post-use
The EEG amplitude (measured in microvolts) will be obtained while participants perform the speeded visual flanker task
Time frame: Immediately pre-substance use, 1-hour post-use, 2-hours post-use, 4-hours post-use
The EEG latency (measured in milliseconds) will be obtained while participants perform the speeded visual flanker task
Time frame: Immediately pre-substance use, 1-hour post-use, 2-hours post-use, 4-hours post-use
An iPod Touch will be attached to each participant's hip with a simple elastic/Velcro strap. An app on the device will record fine grained movements while they try to stand as still as possible for 30-60 seconds under four conditions that vary in terms of demand on the proprioceptive system (eyes open, eyes closed), and on a stable vs. soft (foam) surface.
other outcomes
Time frame: Immediately pre-substance use, 1-hour post-use, 2-hours post-use, 4-hours post-use
Measured using hand-held breathalyzer device
Time frame: Immediately pre-substance use, 1-hour post-use, 2-hours post-use, 4-hours post-use
THC measured from blood samples
Time frame: Immediately pre-substance use, 1-hour post-use, 2-hours post-use, 4-hours post-use
CBD measured from blood samples
Time frame: Immediately pre-substance use, 1-hour post-use, 2-hours post-use, 4-hours post-use
THC-COOH measured from blood samples
Time frame: Immediately pre-substance use, 1-hour post-use, 2-hours post-use, 4-hours post-use
11-OH-THC measured from blood samples
Publications
No exact PMID-linked public article is currently readable locally.