What does a psychoactive drugs do 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.
Are psychoactive drugs that increase the central nervous system’s activity?
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 of the following statements is true about psychoactive drugs?
Which of the following statements is true of psychoactive drugs? They act on the nervous system to alter consciousness, modify perceptions, and change moods.
What are the four main categories of psychoactive drugs?
Groups of psychoactive drugs include stimulants, depressants, narcotics (opioids), hallucinogens, and marijuana (cannabis).
What is meant by the term psychoactive quizlet?
Psychoactive Drugs. chemical substances that can alter arousal, mood, thinking, sensation, and perception.
What happens after repeated use of a psychoactive drug?
An important aspect of the pharmacology of psychoactive drugs is that the repeated use of the drug may cause changes in the neurochemistry of the brain that can reduce the amount of control the person has over their use of the drug, and repeated use can also alter the drug’s psychopharmacological effects.
What are the problems caused by psychoactive drugs?
Some of the dangers of psychoactive drugs include: Short-term physical effects include higher blood pressure, rapid heartbeat, problems with sleeping and eating, nausea and vomiting, shakiness, or dizziness. Long-term effects such as cardiovascular illness, respiratory difficulties, kidney or liver damage.
How do psychoactive drugs affect the central nervous system?
Psychoactive drugs are drugs that affect the Central Nervous System, altering its regular activity. They cause changes in a person’s mood, behavior, and awareness (like time and space).
How do psychoactive drugs influence the action of neurotransmitters?
The drug affects three neurotransmitters in the brain: serotonin, dopamine, and norepinephrine (or noradrenaline). When the drug enters the brain, it leads to these neurotransmitters being released from their synaptic vesicles in neurons. This results in increased neurotransmitter activity.