Final answer:
Schedule I controlled drugs are substances without accepted medical use and with a high potential for abuse. Six examples include Opium, Heroin, Fentanyl, Morphine, Oxycodone, and Vicodin, with Vicodin actually being Schedule II. Psychoactive drugs influence brain function and are categorized by their effects, such as stimulants and depressants.
Step-by-step explanation:
"Schedule I" controlled drugs are substances that are considered highly addictive with no accepted medical use in the United States. When asked to list six of these drugs, we can include Opium, Heroin, Fentanyl, Morphine, Oxycodone, and Vicodin, although Vicodin is actually a Schedule II drug due to its accepted medical use under severe restrictions. These drugs have a high potential for abuse which may lead to severe psychological or physical dependence.
Psychoactive drugs are substances that have an effect on the brain, altering mood, thought processes, perception, and behavior. These substances can be either legal prescription medications like those previously mentioned (excluding Heroin), legal substances such as alcohol and tobacco, or illegal drugs like LSD and heroin.
It is important to note that psychoactive drugs fall into various categories based on their pharmacological effects, which include stimulants, depressants, anxiolytics, euphoriants, hallucinogens, and empathogens. Many psychoactive drugs, due to their multiple effects, can be classified into more than one of these categories.