Psychology MCAT Practice Exam 2025 - Free Practice Questions and Study Guide for Aspiring Psychologists.

Cocaine is classified as a stimulant because it increases the activity of certain neurotransmitters in the brain, particularly dopamine, norepinephrine, and serotonin. This heightened activity leads to increased alertness, energy, and a sense of euphoria, which are characteristic effects of stimulant drugs.

Stimulants generally enhance mood, increase energy levels, and elevate a person's mental and physical performance. This is in contrast to depressants, which tend to decrease central nervous system activity and produce calming effects. Hallucinogens, on the other hand, alter perception, mood, and cognitive processes, leading to experiences such as visual or auditory hallucinations, which is very different from the stimulating effects of cocaine. Lastly, opiates primarily produce pain relief and have sedative properties, which aligns them more closely with depressants than stimulants.

Understanding these classifications and how they relate to the effects on the body and mind is crucial for recognizing the pharmacological profiles of various substances.