Final answer:
Hallucinogens are psychoactive drugs that cause hallucinations and other perceptual anomalies. They result in profound alterations in sensory and perceptual experiences and can be found in plants, mushrooms, or can be man-made. LSD is an example of a classic hallucinogen and it can cause intense emotional swings and false perceptions.
Step-by-step explanation:
A hallucinogen is a type of psychoactive drug that causes hallucinations and other perceptual anomalies, as well as subjective changes in thoughts, emotions, and consciousness. Hallucinogens are a class of drugs that result in profound alterations in sensory and perceptual experiences. Users may experience vivid visual hallucinations, hallucinations of body sensations, and a skewed perception of time.
One example of a classic hallucinogen is LSD (d-lysergic acid diethylamide), also known as acid. It is a potent mood and perception-altering hallucinogenic drug synthesized from a compound derived from a rye fungus. LSD can cause intense emotional swings and users may see images, hear sounds, and feel sensations that seem real but are not.
Hallucinogens can be found in some plants and mushrooms or can be man-made. They are commonly divided into two broad categories: classic hallucinogens (such as LSD) and dissociative drugs (such as PCP). These drugs temporarily disrupt communication between neurotransmitter systems throughout the brain and spinal cord, which regulate mood, sensory perception, sleep, and other bodily functions.