Drugs and Behaviour

Question 1

The brains of humans and other mammals are:

a. qualitatively and quantitatively similar
b. qualitatively and quantitatively different
c. qualitatively different but quantitatively similar
d. qualitatively similar but quantitatively different

Answer 1

d. qualitatively similar but quantitatively different

Question 2

A myelin sheath is found around:
Select one:
a. the axon of some neurons
b. the dendrites of all neurons
c. the axon of all neurons
d. the cell bodies of all neurons

Answer 2

a. the axon of some neurons

Question 3

The production of the first nerve impulse in an axon arises from:
Select one:
a. changes in the nucleus of the soma
b. adding together (summation) of postsynaptic potentials (PSPs)
c. electrical changes in the neuroglia
d. one or more preceding nerve impulses

Answer 3

b. adding together (summation) of postsynaptic potentials (PSPs)

Question 4

Inhibitory neurotransmitters produce inhibitory postsynaptic potentials (IPSPs) and thus:
Select one:
a. contribute to the production of a nerve impulse
b. detract from the production of a nerve impulse
c. detract from the inhibition of a neuron.
d. add to the excitation of a neuron

Answer 4

b. detract from the production of a nerve impulse

Question 5

The main difference between psychopharmacologists (P) and behavioural pharmacologists (B) is:
Select one:
a. Bs are not interested in the brain.
b. Ps study direct effects of drugs on the brain
c. Ps study effects of antibiotics as well as psychotropic drugs
d. Bs only use animals in their research

Answer 5

b. Ps study direct effects of drugs on the brain

Question 6

Psychotropic drugs can exert their influences on neurotransmitters (NTs) by:
Select one:
a. increased or decreased NT release by neurons
b. prevention of NT re-uptake
c. inactivation of enzymes responsible for NT breakdown
d. all these options are correct.

Answer 6

d. all these options are correct.

Question 7

Which of the following is NOT a central nervous system depressant:
Select one:
a. diazepam (Valium)
b. chlorpromazine
c. cannabis
d. LSD

Answer 7

d. LSD

Question 8

Alcohol is:
Select one:
a. a memory-enhancing drug
b. none of the options listed is correct
c. an antidepressant drug
d. a general hypnosedative drug

Answer 8

d. a general hypnosedative drug

Question 9

Increases in dopamine (DA) activity in the brain reward system are responsible for the pleasurable (reinforcing) effects of:
Select one:
a. heroin
b. cocaine
c. alcohol
d. all the options listed are correct

Answer 9

d. all the options listed are correct

Question 10

Benzodiazepine antianxiety agents can be used as:
Select one:
a. minor tranquillizers
b. sleeping aids
c. anticonvulsants
d. all the options listed are correct

Answer 10

d. all the options listed are correct

Question 11

Cannabis can:
Select one:
a. suppress appetite
b. improve driving ability
c. none of the options listed is correct
d. suppress the immune system

Answer 11

d. suppress the immune system

Question 12

Serotonin specific re-uptake inhibitors (SSRIs) are clinically used as:
Select one:
a. major tranquillizing (antipsychotic) drugs
b. appetite stimulants
c. antidepressants
d. short duration anaesthetics.

Answer 12

c. antidepressants

Question 13

Prenatal exposure to alcohol can cause postnatal:
Select one:
a. improved attention
b. accelerated brain growth
c. all the options listed are correct
d. hyperactivity

Answer 13

d. hyperactivity

Question 14

Which of the following drugs has been shown to affect behaviour in animals or humans or both when experienced in mothers milk?
Select one:
a. cannabis
b. all of these options are correct
c. caffeine
d. methamphetamine

Answer 14

b. all of these options are correct

Question 15

Exposure of adolescent rats to benzylpiperazine (BZP) can lead, in adulthood, to:
Select one:
a. less aggression
b. higher anxiety
c. impaired hearing
d. improved memory

Answer 15

b. higher anxiety

Question 16

Which of the following brain structures is NOT fully mature in teenagers?
Select one:
a. hypothalamus
b. prefrontal cortex
c. cerebellum
d. visual cortex

Answer 16

b. prefrontal cortex