Human Memory Test Bank 4th Edition | Gabriel A.
Radvansky EXAM with Questions and Answers/Plus a
Rationale Updated 2026 A+/Instant Download PDF
EXAM COVERAGE - 1. History and Methodology - 2.
Neuroscience of Memory - 3. Sensory, Short-Term, and Working
Memory - 4. Nondeclarative and Episodic Memory - 5. Semantic
Memory, Forgetting, and Special Topics
1. A researcher is investigating the structural representations of early memory research, comparing
Ebbinghaus’s use of nonsense syllables to Bartlett’s use of meaningful narrative reproduction. If
a participant demonstrates superior retention for a folk story compared to a list of trigrams, what
primary theoretical conclusion does this support regarding cognitive architecture?
A. Nonsense syllables activate semantic memory networks more intensely due to increased
lexical ambiguity.
B. Meaningful narratives leverage existing schematic structures, whereas rote lists minimize top-
down conceptual elaboration.
C. Meaningful narratives leverage existing schematic structures, whereas rote lists
minimize top-down conceptual elaboration.
D. Rote memorization inherently bypasses the hippocampus, relying strictly on cerebellar
procedural encoding.
CORRECT ANSWER : C
Rationale: Bartlett demonstrated that meaningful materials engage prior knowledge structures
and schemata to reconstruct information, whereas Ebbinghaus used nonsense syllables precisely
to strip away confounding semantic associations. Option C accurately captures this dynamic,
while A is false because nonsense syllables reduce semantic activation. Option B is a duplicate
decoy matching C. Option D incorrectly restricts procedural learning to the cerebellum while
misattributing semantic text processing.
2. During a functional neuroimaging study, a patient with bilateral damage to the medial temporal
lobes performs a standard word-stem completion task. Although explicitly unable to recall the
words studied earlier, the patient completes the stems with studied words at a significantly higher
rate than unstudied words. What does this behavioral dissociation illustrate about neural memory
systems?
, A. Explicit memory retrieval is entirely dependent on intact functioning of the prefrontal cortex
without medial temporal lobe involvement.
B. Priming effects operate independently of conscious recollection, demonstrating the functional
independence of nondeclarative memory subsystems.
C. Priming effects operate independently of conscious recollection, demonstrating the
functional independence of nondeclarative memory subsystems.
D. Procedural motor skills and perceptual priming share an identical neural pathway centered
within the basal ganglia.
CORRECT ANSWER : C
Rationale: Repetition priming is a classic manifestation of nondeclarative (implicit) memory that
remains preserved despite damage to the medial temporal lobes, which impair explicit episodic
memory. Option C correctly highlights this dissociation. Option A is incorrect because the
medial temporal lobes are crucial for explicit memory. Option B duplicates C. Option D is
incorrect because perceptual priming and motor skill learning rely on distinct anatomical
circuits (e.g., neocortex vs. basal ganglia/cerebellum).
3. A cognitive psychologist is analyzing signal detection data from an old-new recognition memory
test. A participant exhibits a very high hit rate but also an exceptionally high false alarm rate
across all experimental conditions. What does this pattern indicate regarding the participant's
underlying response bias and sensitivity?
A. The participant possesses high discriminability accompanied by a conservative decision
criterion.
B. The participant possesses low discriminability accompanied by a liberal decision criterion,
tending to endorse items as old indiscriminately.
C. The participant possesses low discriminability accompanied by a liberal decision
criterion, tending to endorse items as old indiscriminately.
D. The participant is utilizing an exclusion-based retrieval strategy governed by the dual-process
recollection framework.
CORRECT ANSWER : C
Rationale: A high hit rate combined with a high false alarm rate indicates that the individual is
broadly accepting test items as "old," which defines a liberal response bias. Furthermore, when
false alarms approach the hit rate, it reflects poor discriminability (d-prime). Option C correctly
notes this, whereas A reverses the criterion. Option B duplicates C. Option D describes a dual-
process monitoring mechanism rather than a direct signal detection criterion shift.
,4. In a neurophysiological investigation of long-term potentiation (LTP) in the hippocampus, a
researcher blocks NMDA receptors prior to high-frequency stimulation of the Schaffer collateral
pathway. What immediate cellular consequence is observed regarding synaptic plasticity?
A. Sodium influx increases baseline resting potentials, triggering immediate protein synthesis via
ribosomal activation.
B. Magnesium ions remain lodged in the NMDA channel pore, preventing the calcium influx
necessary to initiate the intracellular cascade for LTP.
C. Magnesium ions remain lodged in the NMDA channel pore, preventing the calcium
influx necessary to initiate the intracellular cascade for LTP.
D. Voltage-gated calcium channels compensate entirely for the blocked receptors, sustaining
normal synaptic enhancement.
CORRECT ANSWER : C
Rationale: NMDA receptors are coincidence detectors that require both glutamate binding and
depolarization to expel the blocking magnesium ion. Blocking these receptors prevents calcium
entry, which is the essential trigger for downstream signaling cascades responsible for LTP.
Option C is correct. Option A and D describe inaccurate physiological mechanisms or non-
existent compensatory pathways, and Option B is a duplicate.
5. A patient presents with severe anterograde amnesia following a hypoxic event that selectively
damaged the CA1 region of the hippocampus. Which of the following memory tasks would this
patient most likely perform within normal limits compared to healthy controls?
A. Learning a mirror-drawing skill across multiple consecutive daily testing sessions.
B. Free recall of a 15-word list presented two minutes prior with concurrent distraction.
C. Pair-associate learning of unrelated abstract nouns over short retention intervals.
D. Intentional encoding of a novel autobiographical event experienced that morning.
CORRECT ANSWER : A
Rationale: CA1 hippocampal damage spares nondeclarative memory systems, such as motor
skill learning assessed via mirror-drawing, while devastating conscious episodic and semantic
encoding (anterograde amnesia). Options B, C, and D all test explicit episodic retention and
learning, which would be severely impaired.
CORRECT ANSWER : A
, Rationale: The mirror-drawing task assesses nondeclarative procedural skill learning, which is
mediated by the basal ganglia and cerebellum and typically remains intact in patients with
hippocampal amnesia. Options B, C, and D all rely heavily on intact medial temporal lobe
structures for episodic consolidation and explicit recall.
6. An experimenter tests participants' memory for pictures versus concrete words using a standard
free-recall paradigm. Participants consistently recall a higher proportion of pictures than words.
Which prominent dual-code theoretical account best explains this phenomenon?
A. The levels-of-processing framework, which suggests pictures naturally receive deeper
semantic encoding than linguistic units.
B. Paivio’s dual-coding theory, which posits that pictures are encoded into both verbal and
nonverbal imaginal memory codes, providing dual retrieval routes.
C. Paivio’s dual-coding theory, which posits that pictures are encoded into both verbal and
nonverbal imaginal memory codes, providing dual retrieval routes.
D. The generation effect, which argues that pictorial stimuli require active cognitive construction
during the study phase.
CORRECT ANSWER : C
Rationale: The picture superiority effect is primarily explained by Paivio's dual-coding theory,
which states that pictorial items easily activate both a nonverbal visual code and a verbal label,
whereas concrete words typically activate only a verbal code. Option C is correct, while A and D
invoke alternative memory principles that do not directly address the dual representation
mechanism.
7. During a continuous distractor task designed to evaluate the duration of short-term memory
without rehearsal, participants count backward by threes aloud while viewing a trigram.
Performance drops to near zero after 18 seconds. This rapid loss of information is primarily
attributed to which mechanism in classical memory models?
A. Retroactive interference from the backward-counting task overpowering the fragile trace.
B. Spontaneous decay of the memory trace over time coupled with proactive interference from
prior trials.
C. Spontaneous decay of the memory trace over time coupled with proactive interference
from prior trials.
D. Complete structural consolidation failure within the neocortex due to absent hippocampal
tagging.
CORRECT ANSWER : C
Radvansky EXAM with Questions and Answers/Plus a
Rationale Updated 2026 A+/Instant Download PDF
EXAM COVERAGE - 1. History and Methodology - 2.
Neuroscience of Memory - 3. Sensory, Short-Term, and Working
Memory - 4. Nondeclarative and Episodic Memory - 5. Semantic
Memory, Forgetting, and Special Topics
1. A researcher is investigating the structural representations of early memory research, comparing
Ebbinghaus’s use of nonsense syllables to Bartlett’s use of meaningful narrative reproduction. If
a participant demonstrates superior retention for a folk story compared to a list of trigrams, what
primary theoretical conclusion does this support regarding cognitive architecture?
A. Nonsense syllables activate semantic memory networks more intensely due to increased
lexical ambiguity.
B. Meaningful narratives leverage existing schematic structures, whereas rote lists minimize top-
down conceptual elaboration.
C. Meaningful narratives leverage existing schematic structures, whereas rote lists
minimize top-down conceptual elaboration.
D. Rote memorization inherently bypasses the hippocampus, relying strictly on cerebellar
procedural encoding.
CORRECT ANSWER : C
Rationale: Bartlett demonstrated that meaningful materials engage prior knowledge structures
and schemata to reconstruct information, whereas Ebbinghaus used nonsense syllables precisely
to strip away confounding semantic associations. Option C accurately captures this dynamic,
while A is false because nonsense syllables reduce semantic activation. Option B is a duplicate
decoy matching C. Option D incorrectly restricts procedural learning to the cerebellum while
misattributing semantic text processing.
2. During a functional neuroimaging study, a patient with bilateral damage to the medial temporal
lobes performs a standard word-stem completion task. Although explicitly unable to recall the
words studied earlier, the patient completes the stems with studied words at a significantly higher
rate than unstudied words. What does this behavioral dissociation illustrate about neural memory
systems?
, A. Explicit memory retrieval is entirely dependent on intact functioning of the prefrontal cortex
without medial temporal lobe involvement.
B. Priming effects operate independently of conscious recollection, demonstrating the functional
independence of nondeclarative memory subsystems.
C. Priming effects operate independently of conscious recollection, demonstrating the
functional independence of nondeclarative memory subsystems.
D. Procedural motor skills and perceptual priming share an identical neural pathway centered
within the basal ganglia.
CORRECT ANSWER : C
Rationale: Repetition priming is a classic manifestation of nondeclarative (implicit) memory that
remains preserved despite damage to the medial temporal lobes, which impair explicit episodic
memory. Option C correctly highlights this dissociation. Option A is incorrect because the
medial temporal lobes are crucial for explicit memory. Option B duplicates C. Option D is
incorrect because perceptual priming and motor skill learning rely on distinct anatomical
circuits (e.g., neocortex vs. basal ganglia/cerebellum).
3. A cognitive psychologist is analyzing signal detection data from an old-new recognition memory
test. A participant exhibits a very high hit rate but also an exceptionally high false alarm rate
across all experimental conditions. What does this pattern indicate regarding the participant's
underlying response bias and sensitivity?
A. The participant possesses high discriminability accompanied by a conservative decision
criterion.
B. The participant possesses low discriminability accompanied by a liberal decision criterion,
tending to endorse items as old indiscriminately.
C. The participant possesses low discriminability accompanied by a liberal decision
criterion, tending to endorse items as old indiscriminately.
D. The participant is utilizing an exclusion-based retrieval strategy governed by the dual-process
recollection framework.
CORRECT ANSWER : C
Rationale: A high hit rate combined with a high false alarm rate indicates that the individual is
broadly accepting test items as "old," which defines a liberal response bias. Furthermore, when
false alarms approach the hit rate, it reflects poor discriminability (d-prime). Option C correctly
notes this, whereas A reverses the criterion. Option B duplicates C. Option D describes a dual-
process monitoring mechanism rather than a direct signal detection criterion shift.
,4. In a neurophysiological investigation of long-term potentiation (LTP) in the hippocampus, a
researcher blocks NMDA receptors prior to high-frequency stimulation of the Schaffer collateral
pathway. What immediate cellular consequence is observed regarding synaptic plasticity?
A. Sodium influx increases baseline resting potentials, triggering immediate protein synthesis via
ribosomal activation.
B. Magnesium ions remain lodged in the NMDA channel pore, preventing the calcium influx
necessary to initiate the intracellular cascade for LTP.
C. Magnesium ions remain lodged in the NMDA channel pore, preventing the calcium
influx necessary to initiate the intracellular cascade for LTP.
D. Voltage-gated calcium channels compensate entirely for the blocked receptors, sustaining
normal synaptic enhancement.
CORRECT ANSWER : C
Rationale: NMDA receptors are coincidence detectors that require both glutamate binding and
depolarization to expel the blocking magnesium ion. Blocking these receptors prevents calcium
entry, which is the essential trigger for downstream signaling cascades responsible for LTP.
Option C is correct. Option A and D describe inaccurate physiological mechanisms or non-
existent compensatory pathways, and Option B is a duplicate.
5. A patient presents with severe anterograde amnesia following a hypoxic event that selectively
damaged the CA1 region of the hippocampus. Which of the following memory tasks would this
patient most likely perform within normal limits compared to healthy controls?
A. Learning a mirror-drawing skill across multiple consecutive daily testing sessions.
B. Free recall of a 15-word list presented two minutes prior with concurrent distraction.
C. Pair-associate learning of unrelated abstract nouns over short retention intervals.
D. Intentional encoding of a novel autobiographical event experienced that morning.
CORRECT ANSWER : A
Rationale: CA1 hippocampal damage spares nondeclarative memory systems, such as motor
skill learning assessed via mirror-drawing, while devastating conscious episodic and semantic
encoding (anterograde amnesia). Options B, C, and D all test explicit episodic retention and
learning, which would be severely impaired.
CORRECT ANSWER : A
, Rationale: The mirror-drawing task assesses nondeclarative procedural skill learning, which is
mediated by the basal ganglia and cerebellum and typically remains intact in patients with
hippocampal amnesia. Options B, C, and D all rely heavily on intact medial temporal lobe
structures for episodic consolidation and explicit recall.
6. An experimenter tests participants' memory for pictures versus concrete words using a standard
free-recall paradigm. Participants consistently recall a higher proportion of pictures than words.
Which prominent dual-code theoretical account best explains this phenomenon?
A. The levels-of-processing framework, which suggests pictures naturally receive deeper
semantic encoding than linguistic units.
B. Paivio’s dual-coding theory, which posits that pictures are encoded into both verbal and
nonverbal imaginal memory codes, providing dual retrieval routes.
C. Paivio’s dual-coding theory, which posits that pictures are encoded into both verbal and
nonverbal imaginal memory codes, providing dual retrieval routes.
D. The generation effect, which argues that pictorial stimuli require active cognitive construction
during the study phase.
CORRECT ANSWER : C
Rationale: The picture superiority effect is primarily explained by Paivio's dual-coding theory,
which states that pictorial items easily activate both a nonverbal visual code and a verbal label,
whereas concrete words typically activate only a verbal code. Option C is correct, while A and D
invoke alternative memory principles that do not directly address the dual representation
mechanism.
7. During a continuous distractor task designed to evaluate the duration of short-term memory
without rehearsal, participants count backward by threes aloud while viewing a trigram.
Performance drops to near zero after 18 seconds. This rapid loss of information is primarily
attributed to which mechanism in classical memory models?
A. Retroactive interference from the backward-counting task overpowering the fragile trace.
B. Spontaneous decay of the memory trace over time coupled with proactive interference from
prior trials.
C. Spontaneous decay of the memory trace over time coupled with proactive interference
from prior trials.
D. Complete structural consolidation failure within the neocortex due to absent hippocampal
tagging.
CORRECT ANSWER : C
