Neurotransmitters and Psychopharmacology

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What is the primary effect of an agonist on the nervous system?

It increases the effect of a neurotransmitter (correct)

It blocks the reuptake of a neurotransmitter

It destroys the receptor site of a neurotransmitter

It reduces the effect of a neurotransmitter

What is a characteristic of drugs that are prone to addiction?

They are marked by a high tendency for relapse (correct)

They are only addictive in certain individuals

They produce euphoria and relaxation

They are only available by prescription

What is the term for the phenomenon where an individual becomes less responsive to a drug and requires increased amounts to produce the same effect?

Dependence

Withdrawal

Sensitivity

Tolerance (correct)

What is the effect of a drug that blocks the reuptake of a neurotransmitter?

It increases the effect of the neurotransmitter Signup and view all the answers

What is the term for a substance that changes the body or its functioning?

Drug Signup and view all the answers

What is the term for the unpleasant symptoms that occur when drug use is stopped?

Withdrawal Signup and view all the answers

What is the primary mechanism of action of SSRIs?

Inhibit the reuptake of serotonin Signup and view all the answers

What is the primary effect of opiates on the body?

Relaxation and sedation Signup and view all the answers

What is the mechanism by which cocaine and amphetamine work?

Inhibit the reuptake of dopamine Signup and view all the answers

What is the primary concern with opioid overdose?

Respiratory depression Signup and view all the answers

What is the primary difference between opiates and opioids?

Opiates are derived from opium, while opioids are synthetic Signup and view all the answers

What is the primary effect of alcohol on the brain?

Reduction of anxiety and sedation Signup and view all the answers

What is the effect of high doses of cocaine on the brain?

Blocks reuptake of dopamine, serotonin, and noradrenaline Signup and view all the answers

What is the primary mechanism of action of benzodiazepines?

Acting on GABA receptors to reduce anxiety Signup and view all the answers

What is the effect of THC on the brain?

Impairs cognitive functioning and distorts time sense and sensory perceptions Signup and view all the answers

What is the result of chronic alcoholism?

Cirrhosis of the liver and Korsakoff's Syndrome Signup and view all the answers

What is the effect of nicotine on the brain?

Stimulates the release of dopamine and serotonin Signup and view all the answers

What is the effect of amphetamines on the brain?

Increases the release of norepinephrine and dopamine Signup and view all the answers

What is the effect of cocaine on the fetus during pregnancy?

Decreases the birth weight of the fetus Signup and view all the answers

What is the effect of marijuana on the brain?

Impairs cognitive functioning and distorts time sense and sensory perceptions Signup and view all the answers

What is the effect of LSD on the brain?

Causes perceptual distortions and hallucinations Signup and view all the answers

What is the effect of ecstasy on the brain?

Increases the release of dopamine and serotonin Signup and view all the answers