Q1. Which part of the brain is primarily responsible for regulating vital functions such
as breathing and heart rate?
A. Cerebellum
B. Hypothalamus
C. Medulla oblongata
D. Thalamus
Answer: C. Medulla oblongata
Expanded Rationale:
The medulla oblongata, located in the brainstem, controls essential autonomic functions
such as respiration, heart rate, and blood pressure. Damage to this area is often fatal
because these processes are involuntary and necessary for survival.
• The hypothalamus regulates hormones and homeostasis (e.g., hunger,
temperature).
• The cerebellum controls coordination and balance.
• The thalamus acts as a sensory relay station.
Understanding these distinctions is critical for exam questions that test brain-
function mapping.
Q2. Which neurotransmitter is most closely associated with mood regulation and
depression?
A. Dopamine
B. Serotonin
C. Acetylcholine
D. Glutamate
Answer: B. Serotonin
,Expanded Rationale:
Serotonin plays a central role in mood stabilization, sleep, and appetite. Low levels are
strongly associated with depression, which is why many antidepressants (SSRIs) work by
increasing serotonin availability in synapses.
• Dopamine is linked to reward and motivation.
• Acetylcholine is involved in muscle movement and memory.
• Glutamate is the main excitatory neurotransmitter.
Exam tip: If the question mentions depression + medication, serotonin is almost
always correct.
Q3. In classical conditioning, what is the unconditioned stimulus (US)?
A. A learned response
B. A neutral stimulus
C. A stimulus that naturally triggers a response
D. A reinforcement
Answer: C. A stimulus that naturally triggers a response
Expanded Rationale:
The unconditioned stimulus automatically produces a response without prior learning
(e.g., food causing salivation). It is biologically innate.
Key structure:
• US → UR (natural reaction)
• CS + US → learning
• CS → CR (learned response)
Students often confuse US vs CS, so remember:
Unconditioned = Unlearned
Q4. Which theory states that emotion is the result of physiological arousal followed by
cognitive interpretation?
A. James-Lange theory
B. Cannon-Bard theory
, C. Schachter-Singer theory
D. Evolutionary theory
Answer: C. Schachter-Singer theory
Expanded Rationale:
This is also called the two-factor theory of emotion:
1. Physiological arousal occurs (e.g., heart racing)
2. Cognitive label is applied (“I am afraid”)
This explains why the same physical state (e.g., arousal) can lead to different emotions
depending on context.
Comparison:
• James-Lange: Arousal → Emotion
• Cannon-Bard: Arousal + Emotion simultaneously
• Schachter-Singer: Arousal + Label = Emotion
Q5. What is the primary function of the hippocampus?
A. Emotion regulation
B. Memory formation
C. Motor coordination
D. Sensory processing
Answer: B. Memory formation
Expanded Rationale:
The hippocampus is essential for converting short-term memories into long-term
memories. Damage leads to anterograde amnesia, where new memories cannot be
formed.
• It does NOT store all memories permanently (that’s distributed across cortex).
• Strongly linked with learning and spatial navigation.
Q6. Which type of learning involves observing and imitating others?