Primary Outcome Measures:
Secondary Outcome Measures:

  • Subjective alcohol effects [ Time Frame: Approximate Time Frame: 30 minutes before drinking, 5, 15, 30 minutes and 1, 2, 3, 24 and 48 hours post-drinking ] [ Designated as safety issue: No ]

    Visual analogue scale measures how participants feel before and after drinking alcohol. administration.

  • Cognitive testing [ Time Frame: Approximate Time Frame: 30 minutes before drinking, and 1, 24 and 48 hours post-drinking ] [ Designated as safety issue: No ]

    Changes in Continuous Performance Test performance.

  • Breath alcohol content (BAC) [ Time Frame: Approximate Time Frame: 30 minutes before drinking, 5, 15, 30, minutes and 1, 2, 3, 24, and 48 hours post-drinking ] [ Designated as safety issue: No ]

    Changes in BAC after drinking

This study will examine the effects of an intoxicating dose of alcohol on driving-related skills among young drivers using driving simulator technology.

This study is a double-blind, placebo-controlled mixed design study, including randomized between-subjects comparison of the effects of alcohol intoxication and both between- and within-subjects examination of acute and residual effects at approximately 24 and 48 hours following one-time alcohol administration.

Initial contact with potential participants will be made by telephone, where study personnel will conduct a telephone screen for eligibility. Those telephone screened as eligible will attend CAMH for an eligibility assessment. Enrolled participants will complete four sessions on consecutive days: a practice day, an alcohol administration day, and a 24-hour and 48-hour post-alcohol session.