Neurotransmitter effects, Disorders and Recreational Drugs

Question 1

Endorphins are neurotransmitters that

Answer 1

stimulate neurons involved in reducing the

intensity of pain.

Question 2

Endorphin production increases in response

to

Answer 2

severe injury, prolonged and continuous

exercise, stress and certain foods.

Question 3

Increased levels of endorphins are also
linked to the feelings of pleasure obtained
from activities such as

Answer 3

eating, sex and prolonged exercise.

Question 4

Dopamine is a neurotransmitter that induces
feelings of pleasure and reinforces particular
behaviour by

Answer 4

activating the reward pathway in the brain.

Question 5

The reward pathway involves neurons which

Answer 5

secrete or respond to dopamine.

Question 6

The reward pathway is activated when an

individual engages in a behaviour that is

Answer 6

beneficial to them (eg eating when hungry)

Question 7

Chemicals that bind to and stimulate specific receptors, (mimicking the action of a neurotransmitter at a synapse) are called

Answer 7

agonists

Question 8

Chemicals that bind to specific receptors blocking the action of a neurotransmitter at a synapse are called

Answer 8

antagonists

Question 9

Drug addiction is caused by repeated use of

Answer 9

drugs that act as antagonists.

Question 10

Drug tolerance is caused by repeated use of

Answer 10

drugs that act as agonists.