Ch3 pt2

Question 1

most commonly abused drugs are derived from ____

Answer 1

plants

Question 2

why do our brains respond to chemicals

Answer 2

drugs work by mimicing neurochemistry

Question 3

drug that BLOCKS the effects of a neurotransmitter

Answer 3

antagonist

Question 4

drug that MIMICS or INCREASES the effects of a neurotransmitter

Answer 4

agonist

Question 5

drug has a ____ for a receptor if it binds to it (key fits lock)

Answer 5

affinity

Question 6

drug’s tendency to activate the receptor (turning the lock)

Answer 6

efficacy

Question 7

why does effectiveness & side effects of drug vary per person

Answer 7

each person varies in number of receptors

Question 8

areas in the brain have axons that increase release of dopamine in the ______

Answer 8

nucleus accumbens

Question 9

dopamine in nucleus accumbens relates to how much you _____ something, not how much you ____ something

Answer 9

want, like

Question 10

motivation

Answer 10

want

Question 11

pleasure

Answer 11

like

Question 12

drugs that increases excitement, alertness, & activity, while elevating mood & decreasing fatigue

Answer 12

stimulant drugs

Question 13

drugs that distort perception

Answer 13

hallucinogenic drugs

Question 14

alcohol problems develop gradually & people do not always have relatives that have abused alcohol (equal proportions men & women)

Answer 14

type 1 (a)

Question 15

onset of problems is rapid, most are men, & most have close relatives with alcohol problems

Answer 15

type 2 (b)

Question 16

certain drugs ____ the nucleus accumbens

Answer 16

rewire

Question 17

cocaine induces changes that impair _______

Answer 17

distinction