Which of the following is a characteristic of stimulant drugs?

Stimulant drugs are known for their ability to increase alertness, attention, and energy levels. This heightened state of awareness often leads users to feel more confident or superior in their cognitive and physical abilities. The reason for this feeling of superiority is linked to the stimulating effects these substances have on the central nervous system, which can result in enhanced performance and mood elevation. These effects can create a false sense of invulnerability or superiority over others, contributing to risky behaviors and decision-making.

In contrast, calming effects and increased drowsiness are associated with depressant substances, which work to relax the body and mind. Amnesia is more closely related to substances that impair memory, like certain sedatives or drugs that affect the brain's memory centers. Therefore, the characteristic of stimulant drugs specifically correlates with feelings of superiority due to their energizing and performance-enhancing effects.