1|Page
PSYC 310 QUIZ 3: COGNITIVE
NEUROSCIENCE — QUESTIONS AND
ANSWERS | LIBERTY UNIVERSITY |
2026/2027 UPDATED
Introduction
Cognitive neuroscience examines how the brain's structure, neural activity, and interconnected
systems support mental processes such as attention, perception, learning, memory, language,
decision-making, and consciousness. PSYC 310 Quiz 3 students may need to apply these
principles to experimental findings, neurological case studies, and real-world behavioral
situations.
This practice bank is designed to help students strengthen conceptual understanding and develop
the analytical skills needed for challenging assessments. Rather than relying on memorization
alone, the questions emphasize scenarios involving brain lesions, neuroimaging results, neural
pathways, cognitive experiments, and differences between brain regions and their functions.
Each multiple-choice question includes four answer options, one best answer, and a detailed
rationale explaining the reasoning behind the correct response and the limitations of the
alternatives. Use the explanations to identify knowledge gaps, connect neurological mechanisms
with observable behavior, and reinforce important distinctions between related concepts.
For the best results, attempt each question before revealing or reviewing the answer, explain your
reasoning aloud, and revisit concepts associated with incorrect responses. Because the exact Quiz
3 syllabus and instructor-specific topic distribution have not been supplied, the following domain
overview is a general cognitive neuroscience study framework rather than an official Liberty
University exam blueprint.
Content area overview
The following table organizes the practice material by major cognitive neuroscience topics. The
question counts and weights are a proposed study allocation, not official exam percentages.
Content area
Qs.
Key topics
Weight
,2|Page
Neural foundations
10
Neurons, synapses, neurotransmitters
10%
Brain anatomy and systems
12
Cortical regions, lobes, subcortical structures
12%
Perception and attention
12
Visual processing, selective attention
12%
Learning and memory
16
Hippocampus, consolidation, amnesia
16%
Executive function
12
Planning, inhibition, working memory
12%
Language and lateralization
10
Aphasia, hemispheric specialization
,3|Page
10%
Emotion and decision-making
10
Amygdala, reward, prefrontal systems
10%
Neuroscience research methods
10
Lesions, fMRI, EEG, causal inference
10%
Sleep and consciousness
8
Sleep stages, awareness, neural activity
8%
Total
100
Proposed distribution
100%
QUESTIONS 1–100
Neural foundations
Q1: A researcher applies a drug that blocks voltage-gated sodium channels in a sensory neuron.
The neuron receives a strong stimulus but fails to transmit an action potential along its axon.
Which mechanism best explains this result?
A) Increased calcium release from intracellular stores
B) Failure of the rapid depolarization needed to propagate an action potential
, 4|Page
C) Excessive neurotransmitter breakdown in the synaptic cleft
D) Increased potassium entry into the neuron
Rationale: B is correct because voltage-gated sodium channels permit sodium influx that drives
the rising phase of an action potential. A does not explain the primary conduction failure, C
concerns chemical signaling at synapses, and D is incorrect because potassium movement is
generally outward during repolarization rather than inward to initiate depolarization.
Q2: Two neurons release the same neurotransmitter, but the neurotransmitter excites one
postsynaptic cell and inhibits another. Which explanation best accounts for the difference?
A) The neurotransmitter changes its chemical identity between synapses.
B) The inhibitory neuron always releases a smaller quantity.
C) The postsynaptic cell's action potentials determine the neurotransmitter's identity.
D) The postsynaptic cells express different receptor types or signaling mechanisms.
Rationale: D is correct because a neurotransmitter's effect depends substantially on its receptors
and the intracellular pathways they activate. A incorrectly assumes the molecule changes
identity, B treats transmitter quantity as the defining factor, and C reverses the causal
relationship between receptor activation and postsynaptic responses.
Q3: A patient experiences reduced coordination after damage to myelin surrounding central
nervous system axons. Which physiological consequence is most likely?
A) Increased speed of saltatory conduction
B) Permanent conversion of all action potentials into graded potentials
C) Slower or unreliable propagation of action potentials along affected axons
D) Complete elimination of neurotransmitter synthesis in every affected neuron
Rationale: C is correct because myelin electrically insulates axons and supports rapid saltatory
conduction between nodes of Ranvier. A describes the normal benefit of intact myelin, B
confuses action potentials with graded potentials, and D incorrectly equates axonal
demyelination with the complete loss of neurotransmitter production.
Q4: An experimental compound increases inhibitory GABAergic signaling in a neural circuit.
Which immediate effect is most likely in many of the affected neurons?
A) A universal increase in firing rate
PSYC 310 QUIZ 3: COGNITIVE
NEUROSCIENCE — QUESTIONS AND
ANSWERS | LIBERTY UNIVERSITY |
2026/2027 UPDATED
Introduction
Cognitive neuroscience examines how the brain's structure, neural activity, and interconnected
systems support mental processes such as attention, perception, learning, memory, language,
decision-making, and consciousness. PSYC 310 Quiz 3 students may need to apply these
principles to experimental findings, neurological case studies, and real-world behavioral
situations.
This practice bank is designed to help students strengthen conceptual understanding and develop
the analytical skills needed for challenging assessments. Rather than relying on memorization
alone, the questions emphasize scenarios involving brain lesions, neuroimaging results, neural
pathways, cognitive experiments, and differences between brain regions and their functions.
Each multiple-choice question includes four answer options, one best answer, and a detailed
rationale explaining the reasoning behind the correct response and the limitations of the
alternatives. Use the explanations to identify knowledge gaps, connect neurological mechanisms
with observable behavior, and reinforce important distinctions between related concepts.
For the best results, attempt each question before revealing or reviewing the answer, explain your
reasoning aloud, and revisit concepts associated with incorrect responses. Because the exact Quiz
3 syllabus and instructor-specific topic distribution have not been supplied, the following domain
overview is a general cognitive neuroscience study framework rather than an official Liberty
University exam blueprint.
Content area overview
The following table organizes the practice material by major cognitive neuroscience topics. The
question counts and weights are a proposed study allocation, not official exam percentages.
Content area
Qs.
Key topics
Weight
,2|Page
Neural foundations
10
Neurons, synapses, neurotransmitters
10%
Brain anatomy and systems
12
Cortical regions, lobes, subcortical structures
12%
Perception and attention
12
Visual processing, selective attention
12%
Learning and memory
16
Hippocampus, consolidation, amnesia
16%
Executive function
12
Planning, inhibition, working memory
12%
Language and lateralization
10
Aphasia, hemispheric specialization
,3|Page
10%
Emotion and decision-making
10
Amygdala, reward, prefrontal systems
10%
Neuroscience research methods
10
Lesions, fMRI, EEG, causal inference
10%
Sleep and consciousness
8
Sleep stages, awareness, neural activity
8%
Total
100
Proposed distribution
100%
QUESTIONS 1–100
Neural foundations
Q1: A researcher applies a drug that blocks voltage-gated sodium channels in a sensory neuron.
The neuron receives a strong stimulus but fails to transmit an action potential along its axon.
Which mechanism best explains this result?
A) Increased calcium release from intracellular stores
B) Failure of the rapid depolarization needed to propagate an action potential
, 4|Page
C) Excessive neurotransmitter breakdown in the synaptic cleft
D) Increased potassium entry into the neuron
Rationale: B is correct because voltage-gated sodium channels permit sodium influx that drives
the rising phase of an action potential. A does not explain the primary conduction failure, C
concerns chemical signaling at synapses, and D is incorrect because potassium movement is
generally outward during repolarization rather than inward to initiate depolarization.
Q2: Two neurons release the same neurotransmitter, but the neurotransmitter excites one
postsynaptic cell and inhibits another. Which explanation best accounts for the difference?
A) The neurotransmitter changes its chemical identity between synapses.
B) The inhibitory neuron always releases a smaller quantity.
C) The postsynaptic cell's action potentials determine the neurotransmitter's identity.
D) The postsynaptic cells express different receptor types or signaling mechanisms.
Rationale: D is correct because a neurotransmitter's effect depends substantially on its receptors
and the intracellular pathways they activate. A incorrectly assumes the molecule changes
identity, B treats transmitter quantity as the defining factor, and C reverses the causal
relationship between receptor activation and postsynaptic responses.
Q3: A patient experiences reduced coordination after damage to myelin surrounding central
nervous system axons. Which physiological consequence is most likely?
A) Increased speed of saltatory conduction
B) Permanent conversion of all action potentials into graded potentials
C) Slower or unreliable propagation of action potentials along affected axons
D) Complete elimination of neurotransmitter synthesis in every affected neuron
Rationale: C is correct because myelin electrically insulates axons and supports rapid saltatory
conduction between nodes of Ranvier. A describes the normal benefit of intact myelin, B
confuses action potentials with graded potentials, and D incorrectly equates axonal
demyelination with the complete loss of neurotransmitter production.
Q4: An experimental compound increases inhibitory GABAergic signaling in a neural circuit.
Which immediate effect is most likely in many of the affected neurons?
A) A universal increase in firing rate
