Stimulants

Stimulants

• A. Increase Activity
• B. Impair Cognition
• C. Produce Sleep
• D. Slow Nervous System

Answer: (A)

Stimulants raise arousal and activity in the brain by boosting signaling of wake-promoting neurotransmitters like dopamine and norepinephrine, which enhances alertness, energy, and motor output. That’s why the best choice is “Increase Activity”—stimulants are defined by producing more activity and wakefulness, not sleep or slowing the nervous system. They can sometimes improve attention and focus at moderate doses, though excessive use can impair performance, but their primary effect is increasing activity rather than impairing cognition.

Stimulants raise arousal and activity in the brain by boosting signaling of wake-promoting neurotransmitters like dopamine and norepinephrine, which enhances alertness, energy, and motor output. That’s why the best choice is “Increase Activity”—stimulants are defined by producing more activity and wakefulness, not sleep or slowing the nervous system. They can sometimes improve attention and focus at moderate doses, though excessive use can impair performance, but their primary effect is increasing activity rather than impairing cognition.