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PSYA01 Questions and Answers for mTuner 02
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Full answers for 40 mcq mTuners questions with Prof Joordens
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Q. How does the administration of Botox in cosmetic procedures help reduce the1
appearance of wrinkles?
a. Acetylcholine is involved in muscle action so by inhibiting its release muscles become
more active.
b. Acetylcholine is involved in muscle action so by increasing its release muscles become
more active.
c. Acetylcholine is involved in muscle action so by inhibiting its release muscles
become paralyzed.
d. Acetylcholine is involved in muscle action so by increasing its release muscles become
paralyzed.
2Q.Alcohol is known to be a depressant i.e. it causesneurons to be inactivated/or
inhibited. The administration of a substance that causes the release of acetylcholine
would have what effect on these inactivated neurons?
. T
a he neurons would become more hyperpolarized.
b. The neurons would remain hyperpolarized.
c. The neurons would become more depolarized.
d. The neurons would become less depolarized.
3Q. The smallest amount of a particular stimulus required for a difference in
magnitude to be detected is known as the ____________.
a. difference threshold
b. magnitude threshold
c. absolute magnitude
d. absolute threshold
Q. Patient A has taken drug X which is a partial agonist of the serotonin receptor. Patient B
4
has taken drug Y which is an antagonist of the serotonin receptor. Which patient will have an
elevated mood?
Drug X and Y
It depends on whether the drugs cause an excitatory or inhibitory effect on the
postsynaptic neuron.
Drug X
Drug Y
5Q. How do oligodendrocytes differ from Schwann cells ?
chwann cells myelinate within the central nervous system
S
Schwann cells myelinate outside of the central nervous system
Two of the options are correct.
Oligodendrocytes myelinate within the central nervous system
, Q. Our ability to read a friend's messy handwritten note is an example of a process that
6
combines top-down processing with ________.
the principle of proximity
affective state
Memory
Sensation
?? 7Q. Ion channels can be opened by ____ and/or ____.
?
Action potentials; neurotransmitters.
Depolarization; action potentialsWrong
Action potentials; voltage
Neurotransmitters; voltage
8Q. Two friends are watching a presidential debatebetween a republican and democrat
andidate. Even though they watch the exact same exchange, afterwards they strongly
c
disagree on who "won" the debate. What causes them to view the same events differently?
In Milgram's classic experiment, the effect of an authority figure on the
likelihood of a person following instructions, even when those instructions
were to hurt someone, was tested. What important ethical issue is highlighted
by this experiment?
they have different bottom-up processing
they have different IQs
they have different occipital lobes
9QThere are two main pathways we use to understandvisual information. When we
notice that someone is walking up behind us we are mainly using which pathway?
dorsal stream
optic tract
feature detector
ventral stream
10Q Descartes believed that animals did not experience real pain during vivisections
because:
He believed that animals did not have Rational Souls.
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