Drugs and Society Practice Exam

Substances that affect the brain to change how we think, feel, and perceive are known as psychoactive drugs. This term specifically captures drugs whose primary action is on the central nervous system, leading to changes in consciousness, mood, perception, or awareness. For example, caffeine and alcohol illustrate stimulation and sedation, while cannabis and psychedelics illustrate alterations in perception and thought. The other terms don’t fit as well: affective drugs isn’t a standard pharmacology label for this whole category, licit drugs only notes legal status, and “drugs” is too vague to identify the CNS/mental-state effects described.