biod 322 mod 6 neuroscience motivated behaviors la
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BIOD 322 NEUROSCIENCE
Motivated Behaviors
Latest Review Exam
Q&A
2024
,1. Which neurotransmitter is primarily involved in the regulation of
appetite and satiety?
A) Dopamine
B) Serotonin
C) GABA
D) Norepinephrine
Answer: B) Serotonin
Rationale: Serotonin is known to regulate appetite and satiety. It is
involved in the control of food intake, promoting a feeling of fullness and
reducing the desire to eat more.
2. In the context of motivated behaviors, what role does the hypothalamus
play?
A) It processes sensory information.
B) It regulates hormonal secretions.
C) It controls hunger and thirst.
D) It manages circadian rhythms.
Answer: C) It controls hunger and thirst.
Rationale: The hypothalamus is a critical brain structure in the
regulation of motivated behaviors such as hunger and thirst, acting as a
control center for appetite and water balance.
3. What is the significance of the mesolimbic pathway in motivated
behaviors?
A) It is responsible for cognitive processing.
B) It is involved in the emotional response to pain.
C) It mediates the reward system.
D) It controls motor functions.
Answer: C) It mediates the reward system.
Rationale: The mesolimbic pathway is a key component of the brain's
reward system, which is heavily involved in the mediation of motivated
behaviors, particularly those related to seeking pleasure and avoiding pain.
4. How does leptin influence motivated behaviors related to feeding?
A) By increasing hunger signals.
B) By decreasing hunger signals.
C) By impairing taste sensation.
D) By enhancing olfactory sensitivity.
, Answer: B) By decreasing hunger signals.
Rationale: Leptin is a hormone that signals the brain to reduce appetite
and increase the amount of energy used, thus playing a crucial role in
suppressing hunger signals and regulating energy balance.
5. Which brain region is implicated in the 'fight or flight' response?
A) Prefrontal cortex
B) Amygdala
C) Hippocampus
D) Cerebellum
Answer: B) Amygdala
Rationale: The amygdala is involved in the processing of emotions and
is critical for initiating the 'fight or flight' response to threatening stimuli.
6. What is the primary function of the ventral tegmental area (VTA) in
motivated behaviors?
A) It is involved in language comprehension.
B) It regulates sleep-wake cycles.
C) It is associated with the release of dopamine.
D) It processes visual information.
Answer: C) It is associated with the release of dopamine.
Rationale: The VTA is a group of neurons in the midbrain that plays a
significant role in the reward circuitry of the brain, primarily through the
release of dopamine, which influences motivation and reward-seeking
behaviors.
7. How does the nucleus accumbens contribute to motivated behaviors?
A) By coordinating voluntary movements.
B) By modulating reward and pleasure.
C) By regulating blood pressure.
D) By controlling respiratory rate.
Answer: B) By modulating reward and pleasure.
Rationale: The nucleus accumbens is a key structure in the reward
circuit of the brain, and it is involved in the modulation of reward and
pleasure, which are essential components of motivated behaviors.
8. Which of the following is a characteristic of intrinsic motivation?
A) It is driven by external rewards.
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