A depressant is a psychoactive drug that reduces the activity of the CNS. Depressants are widely used as prescription medicines to relieve pain, to lower heart rate and respiration, and as anticonvulsants.
What are the 4 types of psychoactive drugs?
Psychoactive drugs include four groups of drugs: depressants like alcohol and sleeping pills; stimulants like nicotine and ecstasy; opioids like heroin and pain medications; and hallucinogens like LSD.
What is a class of psychoactive drugs that slow brain and body reactions?
Central Nervous System (CNS) depressants are medicines that include sedatives, tranquilizers, and hypnotics. These drugs can slow brain activity, making them useful for treating anxiety, panic, acute stress reactions, and sleep disorders.
Which psychoactive drug excites the activity of the central nervous system?
Stimulants increase the activity of the central nervous system, making the person more alert and aroused. Examples of stimulants are nicotine, caffeine, cocaine, ecstasy and the methamphetamines, speed and ice.
Which type of psychoactive drug slows down the function of the central nervous system?
Depressants (also known as relaxants)
Tend to slow down the activity of the CNS, which often results in the user feeling less pain, more relaxed and sleepy.
What is considered a psychoactive drug?
A drug or other substance that affects how the brain works and causes changes in mood, awareness, thoughts, feelings, or behavior. Examples of psychoactive substances include alcohol, caffeine, nicotine, marijuana, and certain pain medicines.
What are the 6 Classification of psychoactive drugs?
Groups of psychoactive drugs include stimulants, depressants, narcotics (opioids), hallucinogens, and marijuana (cannabis).
Which are the 7 major classes of psychoactive drugs?
7 Drug Categories
- (1) Central Nervous System (CNS) Depressants. CNS depressants slow down the operations of the brain and the body. …
- (2) CNS Stimulants. …
- (3) Hallucinogens. …
- (4) Dissociative Anesthetics. …
- (5) Narcotic Analgesics. …
- (6) Inhalants. …
- (7) Cannabis.
Which is a class of psychoactive drugs that slow?
Depressants. Depressants are a type of psychoactive drug that inhibit and slow down the central nervous system. Depressants usually have a calming effect on the body and can be used to treat aliments like anxiety, muscle spasms, and sleep disorders.
What is the best explanation for blindsight?
Summary: Blindsight is a phenomenon in which patients with damage in the primary visual cortex of the brain can tell where an object is although they claim they cannot see it. Scientists now provide compelling evidence that blindsight occurs because visual information is conveyed bypassing the primary visual cortex.
What are psychoactive drugs quizlet?
Psychoactive drugs are chemical substances that affect the brain functioning, causing changes in behavior, mood and consciousness. While these drugs can be used therapeutically to treat both physical and psychological disorders, they are also used recreationally to alter mood, perceptions and consciousness.
What is the most commonly used psychoactive drug?
Caffeine is the most widely used psychoactive substance in the world. In Western society, at least 80 per cent of the adult population consumes caffeine in amounts large enough to have an effect on the brain.
Which are the main categories of psychoactive drugs quizlet?
3 types: short, intermediate, and long-acting.
What are the 4 types of drugs?
What Are the Four Types of Drugs?
- Depressants. Some of the most commonly found types of drugs in society are depressants. …
- Stimulants. Stimulants, such as caffeine or nicotine, work in the opposite manner. …
- Opioids. The opioid addiction crisis has affected our society to a grave degree. …
What is drug abused?
The use of illegal drugs or the use of prescription or over-the-counter drugs for purposes other than those for which they are meant to be used, or in excessive amounts. Drug abuse may lead to social, physical, emotional, and job-related problems.
How are drugs classified?
Drugs, substances, and certain chemicals used to make drugs are classified into five (5) distinct categories or schedules depending upon the drug’s acceptable medical use and the drug’s abuse or dependency potential.