Which statement about the impact of alcohol on reaction time is true?

Which statement about the impact of alcohol on reaction time is true?

• A. The depressant effect slows reaction time
• B. Alcohol speeds reaction time
• C. Alcohol has no effect on reaction time
• D. Reaction time improves with alcohol

Answer: (A)

Alcohol slows the brain’s processing and motor responses, so it acts as a depressant. This reduces alertness and stretches the time it takes to notice a hazard, interpret what you see, and move your foot to brake or steer. In driving, that means a longer gap between recognizing danger and acting, plus less precise control, which increases stopping distance and crash risk. Statements claiming it speeds up, has no effect, or improves driving aren’t accurate because alcohol diminishes attention, slows neural signaling, and impairs coordination, not enhances them.

Alcohol slows the brain’s processing and motor responses, so it acts as a depressant. This reduces alertness and stretches the time it takes to notice a hazard, interpret what you see, and move your foot to brake or steer. In driving, that means a longer gap between recognizing danger and acting, plus less precise control, which increases stopping distance and crash risk. Statements claiming it speeds up, has no effect, or improves driving aren’t accurate because alcohol diminishes attention, slows neural signaling, and impairs coordination, not enhances them.