week 9

What are psychoactive drugs?

• Drugs that influence physical health

• Drugs that influence subjective experience by acting on the nervous system

• Drugs that are illegal

• Drugs that have no effect on the body

Which of the following is an example of a psychoactive drug?

• Vitamin C

• Aspirin

• Caffeine

• Insulin

Which of the following drugs is NOT a psychoactive drug?

• Anti-anxiety drugs

• Anti-depressants

• Alcohol

• Antibiotics

What is the common feature of all psychoactive drugs?

• They all cure diseases

• They all have the same chemical structure

• They all have an effect on subjective experience through the nervous system

• They are all illegal

How do psychoactive drugs influence the nervous system?

• diffusely, throughout the CNS (e.g., alcohol) b)

• by binding to particular synaptic receptors

• through synthesis, transport, release or deactivation of neurotransmitters

• All of the above

How do psychoactive drugs specifically influence the nervous system?

• By diffusing throughout the CNS

• By binding to particular synaptic receptors

• By altering the genetic code of neurons

• By decreasing the number of neurons in the brain

Which organ is primarily responsible for drug metabolism?

• The brain

• The heart

• The liver

• The stomach

How are small amounts of some psychoactive drugs eliminated from the body?

• Through the skin

• Through the hair

• Through the lungs

• Through urine, sweat, feces, breath, and mother's milk

What is drug tolerance?

• A state of increased sensitivity to a drug that develops as a result of exposure to it

• A state of decreased sensitivity to a drug that develops as a result of exposure to it

• A state of no change in sensitivity to a drug that develops as a result of exposure to it

• A state of temporary sensitivity to a drug that develops as a result of exposure to it

In what ways can drug tolerance be shown?

(2 correct answers)

• A given dose has more of an effect than before

• A given dose has less of an effect than before

• A lower dosage is required to produce the same effect

• A higher dosage is required to produce the same effect