QUESTIONS AND ANSWERS + RATIONALES | STUDY GUIDE |
100% CORRECT
1. A 22-year-old patient recently diagnosed with bipolar disorder states, "I'm not crazy," and
refuses to take the prescribed medication. According to the Dell'Osso model of
nonadherence, which factor is primarily contributing to this patient's lack of insight?
A) Structural factors
B) Client factors
C) Clinician factors
D) Environmental factors
Correct Answer: B) Client factors
Rationale: This patient's lack of insight and denial of illness is a client factor that contributes to
medication nonadherence. Client factors include attitudes, beliefs, and cognitive impairments
that affect a patient's willingness to adhere to treatment. Structural factors involve healthcare
access, while clinician factors relate to the provider-patient relationship.
2. Which brain structure is primarily responsible for speech comprehension?
A) Broca's area
B) Wernicke's area
C) Limbic system
D) Basal ganglia
Correct Answer: B) Wernicke's area
Rationale: Wernicke's area, located in the superior temporal gyrus, is responsible for language
comprehension. Damage to this area results in Wernicke's aphasia, characterized by fluent
speech that lacks meaning. Broca's area is associated with speech production, the limbic system
with emotion and learning, and the basal ganglia with motor functions.
3. The orbitofrontal cortex (OFC) has which effect on the amygdala?
A) It only activates the amygdala
B) It only inhibits the amygdala
C) It both inhibits and activates the amygdala
D) It has no effect on the amygdala
Correct Answer: C) It both inhibits and activates the amygdala
Rationale: The orbitofrontal cortex serves as a regulatory center that can both inhibit and activate
the amygdala depending on the context. This bidirectional relationship is crucial for emotional
regulation and decision-making. Dysfunction in this circuit is implicated in impulsivity and
mood disorders.
4. Which brain structure is most closely associated with emotion and learning?
A) Prefrontal cortex
, B) Wernicke's area
C) Limbic system
D) Basal ganglia
Correct Answer: C) Limbic system
Rationale: The limbic system, which includes the amygdala and hippocampus, plays a central
role in emotion, learning, and memory. The prefrontal cortex is involved in executive function,
Wernicke's area in language comprehension, and the basal ganglia in motor control.
5. A researcher is studying the effects of trauma on memory consolidation. Which brain
structure would be the primary focus of this research?
A) Amygdala
B) Hippocampus
C) Nucleus accumbens
D) Thalamus
Correct Answer: B) Hippocampus
Rationale: The hippocampus is responsible for memory consolidation and the transfer of
information from short-term to long-term memory. It is also involved in spatial navigation. The
amygdala processes emotions, the nucleus accumbens is part of the reward circuit, and the
thalamus relays sensory information.
6. The temporal lobe contains which of the following structures?
A) Primary motor cortex
B) Primary visual cortex
C) Hippocampus and amygdala
D) Somatosensory cortex
Correct Answer: C) Hippocampus and amygdala
Rationale: The temporal lobe houses the hippocampus and amygdala, structures critical for
memory and emotional processing. The primary motor cortex is in the frontal lobe, the primary
visual cortex in the occipital lobe, and the somatosensory cortex in the parietal lobe.
7. Which part of the brain is involved in the reward circuit and reinforces addictive
behaviors?
A) Amygdala
B) Hippocampus
C) Nucleus accumbens
D) Thalamus
Correct Answer: C) Nucleus accumbens
Rationale: The nucleus accumbens is a key component of the reward circuit and plays a central
role in reinforcing addictive behaviors. It is activated by substances of abuse and natural rewards.
Dysfunction in this pathway is implicated in addiction.
, 8. A patient with schizophrenia is experiencing cognitive symptoms. Which brain region is
most likely involved?
A) Orbitofrontal cortex
B) Dorsolateral prefrontal cortex
C) Amygdala
D) Hippocampus
Correct Answer: B) Dorsolateral prefrontal cortex
Rationale: The dorsolateral prefrontal cortex (DLPFC) is associated with cognitive functions
such as working memory, attention, and executive function. Cognitive symptoms in
schizophrenia, such as poor working memory and executive dysfunction, are linked to DLPFC
impairment.
9. A patient with a dominant temporal lobe lesion would most likely present with which
symptom?
A) Impaired motor coordination
B) Wernicke's aphasia
C) Visual hallucinations
D) Loss of proprioception
Correct Answer: B) Wernicke's aphasia
Rationale: A dominant temporal lobe lesion can present as Wernicke's aphasia, a language
comprehension deficit. The temporal lobe is involved in object identification and language
comprehension. Motor coordination is associated with the cerebellum, visual processing with the
occipital lobe, and proprioception with the parietal lobe.
10. The corpus callosum is involved in which of the following functions? (Select all that
apply.)
A) Attention
B) Impulse control
C) Emotion regulation
D) Communication between brain hemispheres
Correct Answer: A, B, C, D (All of the above)
Rationale: The corpus callosum controls communication between the two brain hemispheres and
is involved in attention, impulse control, and emotion regulation. It integrates impulses from both
sides of the brain. Impairment can lead to difficulties in these areas.
11. According to the standard study guide for the NR 546 midterm, how many questions
typically come from each week?
A) 5-6 questions
B) 10-12 questions
C) 17-18 questions
D) 25-30 questions