Match the category of psychoactive drug with the appropriate definition:
A category of drugs that inhibit central nervous system activity.
[Choose] Opiates, stimulants, psychedelic, depressants
A category of drugs that excite neural activity and speed up body functions.
[Choose] Opiates, stimulants, psychedelic, depressants
A category of drugs that distort perceptions and evoke sensory images in the absence of sensory input.
[Choose] Opiates, stimulants, psychedelic, depressants
A category of drugs that are chemically [Choose] similar to morphine and that relieve pain and produce euphoria.