I85PREP
⌘ K
INRAT-H study materials
INRAT-H study resources

INRAT-H practice questions

One question at a time. Build your INRAT-H understanding.

First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

Continue in the practice tool above to load more questions, 50 at a time.

Question 1Human Performance Fundamentals and Error Mechanisms

Which stage of the human information-processing model converts sensory input into a meaningful internal representation?

  1. Response selection
  2. Motor programming
  3. Short-term memory storage
  4. Perception Correct answer.

Explanation

Perception is the stage that interprets and organizes raw sensory signals into a meaningful mental representation of the situation. It precedes decision-making and response execution in the processing sequence. Memory storage occurs after the information has been interpreted.

Question 2Human Performance Fundamentals and Error Mechanisms

A pilot's attention is most limited by which characteristic of human cognition?

  1. The inability to divide attention between two tasks
  2. A fixed and finite pool of attentional resources Correct answer.
  3. Unlimited parallel processing of all sensory channels
  4. Complete dependence on long-term memory for scanning

Explanation

Attention behaves like a limited resource pool that must be allocated among competing tasks. When demand exceeds capacity, performance on one or more tasks degrades. People can divide attention, but only within the available capacity.

Question 3Human Performance Fundamentals and Error Mechanisms

Working memory in the cockpit is best described as which of the following?

  1. An automatic system that requires no conscious effort
  2. A limited-capacity workspace for temporarily holding and manipulating information Correct answer.
  3. A permanent store of all procedures learned during training
  4. A sensory buffer that holds raw stimuli for several minutes

Explanation

Working memory is a limited-capacity system that temporarily holds and actively manipulates information during a task. Its capacity is small, so interruptions and additional demands easily displace its contents. Long-term memory, by contrast, is the durable store of learned knowledge.

Question 4Human Performance Fundamentals and Error Mechanisms

Which of the following is a classic example of a skill-based error?

  1. Slip of a switch to the adjacent position during a routine flow Correct answer.
  2. Deliberately ignoring a checklist to save time
  3. Selecting the wrong runway after misreading the chart
  4. Misunderstanding a controller's clearance

Explanation

Skill-based errors occur during highly practiced, automatic routines, where attention lapses produce slips or lapses. Selecting an adjacent switch is a typical slip in an overlearned sequence. Errors involving misreading, misunderstanding, or deliberate rule violation arise at higher cognitive levels.

Question 5Human Performance Fundamentals and Error Mechanisms

According to the SRK framework, a pilot who applies a memorized memory item to an unfamiliar emergency is operating at which level?

  1. Knowledge-based
  2. Rule-based Correct answer.
  3. Reflex-based
  4. Skill-based

Explanation

Rule-based behavior involves matching a recognized situation to stored if-then rules or procedures. Applying a memorized memory item is rule-based because the pilot retrieves a pre-learned solution. Knowledge-based behavior would be required when no stored rule fits the situation.

Question 6Human Performance Fundamentals and Error Mechanisms

Which condition most directly increases the likelihood of a lapse error during a long, low-workload cruise?

  1. Rapidly changing task demands
  2. Sustained under-arousal and monotony Correct answer.
  3. Complex mental arithmetic
  4. High mental workload with frequent interruptions

Explanation

Prolonged monotony produces under-arousal, which reduces vigilance and allows attention to drift from routine tasks. Lapses are omissions of intended actions that become more likely when arousal is low. High workload and rapidly changing demands tend to produce different error patterns.

Question 7Human Performance Fundamentals and Error Mechanisms

A pilot who fails to notice that an aircraft system has reverted to a different mode has most likely experienced which failure?

  1. A motor programming deficit
  2. A violation of standard operating procedure
  3. A mode awareness failure Correct answer.
  4. A slip of the hand

Explanation

Mode awareness is the pilot's understanding of which automation modes are active and how the aircraft will behave. Failing to detect a mode reversion is a classic mode awareness failure. It is a monitoring and interpretation problem rather than a motor slip.

Question 8Human Performance Fundamentals and Error Mechanisms

Which statement best describes the relationship between arousal and performance?

  1. Performance is optimal at a moderate level of arousal and declines at extremes Correct answer.
  2. Performance is unaffected by arousal level
  3. Performance is best when arousal is at its lowest possible level
  4. Performance improves continuously as arousal increases without limit

Explanation

The inverted-U principle holds that performance peaks at moderate arousal and deteriorates when arousal is too low or too high. Very low arousal produces drowsiness and lapses, while very high arousal produces narrowing of attention and motor tension. Complex tasks are especially vulnerable at high arousal.

Question 9Human Performance Fundamentals and Error Mechanisms

A pilot under high stress fixates on a single instrument and ignores other cues. This best illustrates which phenomenon?

  1. Habituation
  2. Channel capacity expansion
  3. Attention narrowing Correct answer.
  4. Cognitive tunneling reversal

Explanation

High stress and arousal narrow the field of attention, causing a person to concentrate on central cues and neglect peripheral information. This narrowing is sometimes called perceptual tunneling. It reduces the scan and can cause missed warnings or traffic.

Question 10Human Performance Fundamentals and Error Mechanisms

Which of the following best defines a violation in human error terminology?

  1. A deliberate deviation from a rule or procedure Correct answer.
  2. An unintended action that deviates from intention
  3. A failure of memory retrieval
  4. A perceptual misjudgment of altitude

Explanation

A violation is an intentional act that departs from established rules, procedures, or regulations. It differs from an error, which is unintended. Violations may be routine or exceptional depending on the circumstances.

Question 11Human Performance Fundamentals and Error Mechanisms

A crew repeatedly shortens a checklist because 'it is always done that way' and nothing bad has happened. This pattern is best classified as which type of violation?

  1. Situational violation
  2. Routine violation Correct answer.
  3. Skill-based slip
  4. Exceptional violation

Explanation

Routine violations are habitual shortcuts that become normalized within a group because they are perceived as low risk. The repeated, accepted nature of the shortcut distinguishes it from a one-off exceptional violation. Situational violations arise from specific pressures such as time or equipment limitations.

Question 12Human Performance Fundamentals and Error Mechanisms

Which factor is an example of a latent condition that can contribute to an accident?

  1. A maintenance procedure that omits a required inspection step Correct answer.
  2. A controller's momentary lapse in reading a strip
  3. A pilot misreading an altimeter in the moment
  4. An abrupt wind gust during landing

Explanation

Latent conditions are pre-existing organizational or systemic weaknesses that lie dormant until combined with active failures. A flawed maintenance procedure is embedded in the system and can enable later errors. Momentary misreads and weather gusts are active, immediate factors.

Question 13Human Performance Fundamentals and Error Mechanisms

In Reason's Swiss cheese model, an accident trajectory occurs when which condition is met?

  1. A single barrier is perfectly reliable
  2. All latent conditions are eliminated
  3. Only one active failure is present
  4. Weaknesses in multiple defensive layers align Correct answer.

Explanation

The Swiss cheese model depicts defenses as layers with holes representing weaknesses. An accident occurs when holes in successive layers align, allowing a hazard to pass through all defenses. Single failures are usually trapped by remaining layers.

Question 14Human Performance Fundamentals and Error Mechanisms

Which of the following is the most effective defense against prospective memory failures such as forgetting a deferred task?

  1. Reducing the number of checklists used
  2. Relying on mental rehearsal alone
  3. Increasing cruise speed
  4. Using a written reminder or explicit cue at the point of action Correct answer.

Explanation

Prospective memory involves remembering to perform an intended action at a future time. External cues such as written notes or explicit prompts at the point of action reduce reliance on internal memory. Mental rehearsal alone is fragile under high workload and interruption.

Question 15Human Performance Fundamentals and Error Mechanisms

Which statement about human vigilance is most accurate?

  1. Vigilance is highest when signals are rare and unpredictable
  2. Vigilance is unaffected by time on task
  3. Vigilance improves steadily over a long monitoring period
  4. Detection of rare signals tends to decline over time, especially in monotonous conditions Correct answer.

Explanation

The vigilance decrement describes the decline in detection performance over prolonged monitoring, particularly with rare, unpredictable signals and low stimulation. Fatigue and under-arousal accelerate this decline. Detection does not improve with time on task.

Question 16Human Performance Fundamentals and Error Mechanisms

A pilot is interrupted while entering a route and later resumes at the wrong waypoint. Which error mechanism best explains this outcome?

  1. Sensory adaptation to cockpit lighting
  2. Loss of place in a sequential task Correct answer.
  3. Deliberate rule violation
  4. Failure of long-term memory consolidation

Explanation

Interruptions cause people to lose their place in a sequence and resume at an incorrect point, an omission or sequence error. The task knowledge remains intact, but the tracking of position within the sequence fails. Written place-keeping and deliberate resumption checks mitigate this risk.

Question 17Human Performance Fundamentals and Error Mechanisms

Which of the following best characterizes automaticity in skilled performance?

  1. It requires continuous conscious control of each movement
  2. It always improves safety by removing the need for monitoring
  3. It frees attentional resources but can allow errors to pass unnoticed Correct answer.
  4. It eliminates the possibility of slips

Explanation

Automaticity allows well-practiced tasks to be performed with little conscious attention, freeing resources for other duties. However, because the routine runs with reduced monitoring, slips and omissions may go undetected. Automaticity does not eliminate error.

Question 18Human Performance Fundamentals and Error Mechanisms

Which of the following is a reliable indicator that a pilot may be experiencing spatial disorientation?

  1. Conflicting sensations between instruments and body feelings Correct answer.
  2. Clear horizon reference throughout the maneuver
  3. Steady airspeed with stable attitude
  4. Confident agreement between visual and vestibular cues

Explanation

Spatial disorientation arises when vestibular and other sensory inputs conflict with actual aircraft attitude. The pilot may feel a turn or climb that the instruments do not show. Trusting instruments over sensations is the primary countermeasure.

Question 19Human Performance Fundamentals and Error Mechanisms

A pilot who has been in a constant-rate turn for a prolonged period suddenly perceives a turn in the opposite direction after rolling wings level. This illusion is caused by which mechanism?

  1. Autokinetic effect
  2. Gravitoinertial illusion from semicircular canal adaptation Correct answer.
  3. The leans
  4. Somatogravic illusion

Explanation

During a sustained turn, the semicircular canal fluid adapts to the rotation and the sensation of turning fades. When the aircraft rolls out, the canals signal rotation in the opposite direction, producing a false sensation of turning the other way. This is a somatogyral illusion driven by canal adaptation.

Question 20Human Performance Fundamentals and Error Mechanisms

Which of the following is the most appropriate countermeasure for the somatogravic illusion during acceleration?

  1. Close the eyes briefly to reset the senses
  2. Rely on seat-of-the-pants sensation to set pitch
  3. Increase the rate of acceleration
  4. Cross-check the attitude indicator and airspeed Correct answer.

Explanation

The somatogravic illusion causes linear acceleration to be misperceived as a pitch-up, tempting the pilot to lower the nose. Cross-checking the attitude indicator and airspeed provides reliable external references. Body sensations are unreliable during acceleration.

Question 21Human Performance Fundamentals and Error Mechanisms

Which of the following best describes the purpose of a threat and error management framework?

  1. To identify threats, trap errors before they escalate, and manage undesired aircraft states Correct answer.
  2. To replace checklists with individual judgment
  3. To eliminate all human error from operations
  4. To assign blame after an incident occurs

Explanation

Threat and error management focuses on anticipating threats, detecting and trapping errors, and recovering from undesired aircraft states. It accepts that error is inevitable and emphasizes resilience. It is not a blame-assignment or error-elimination tool.

Question 22Human Performance Fundamentals and Error Mechanisms

A crew detects a wrong frequency entry before transmitting and corrects it. In threat and error management terms, this is best described as which outcome?

  1. A trapped error Correct answer.
  2. An undetected threat
  3. An undesired aircraft state
  4. An exceptional violation

Explanation

An error that is detected and corrected before it affects the flight is described as trapped. Trapping errors prevents them from propagating into undesired aircraft states. Undesired aircraft states occur only when errors escape detection and affect the aircraft's condition.

Question 23Human Performance Fundamentals and Error Mechanisms

Which statement best describes the effect of fatigue on error probability?

  1. Fatigue slows processing, impairs vigilance, and increases the likelihood of lapses Correct answer.
  2. Fatigue mainly increases physical strength and has little cognitive effect
  3. Fatigue only affects performance after 24 hours without sleep
  4. Fatigue improves performance on complex tasks

Explanation

Fatigue degrades information processing speed, vigilance, working memory, and mood, raising the probability of lapses and errors. These effects appear well before 24 hours of wakefulness and accumulate with sleep debt. Fatigue does not improve complex task performance.

Question 24Human Performance Fundamentals and Error Mechanisms

A pilot continues an approach despite increasing evidence of unstable parameters, partly because of a strong commitment to reaching the destination. This is best explained by which bias?

  1. Availability heuristic
  2. Hindsight bias
  3. Anchoring bias
  4. Plan continuation bias Correct answer.

Explanation

Plan continuation bias is the tendency to continue an original plan even as conditions change and suggest a different course of action. The pilot's commitment to the destination overrides the emerging cues. Recognizing the bias and setting explicit go-around criteria help counter it.

Question 25Human Performance Fundamentals and Error Mechanisms

Which of the following best describes a lapse in error classification?

  1. A deliberate shortcut taken under time pressure
  2. A correctly executed action that was inappropriate for the situation
  3. A physical action that fails to achieve its intended effect
  4. An unintended omission of a planned action Correct answer.

Explanation

A lapse is an unintentional omission or failure to carry out a planned action, often due to memory failure. It differs from a slip, which is a mis-executed action. Both are skill-based errors.

Question 26Human Performance Fundamentals and Error Mechanisms

Which statement best describes the effect of chronic sleep restriction on a pilot's ability to notice errors?

  1. It has little effect once the pilot becomes accustomed to the reduced sleep schedule
  2. It improves monitoring performance because the pilot relies more on automated systems
  3. It degrades attention and working memory, reducing the ability to detect and correct errors Correct answer.
  4. It primarily slows physical control inputs while leaving error detection intact

Explanation

Chronic sleep restriction produces cumulative degradation of attention, vigilance, and working memory even when the person feels adapted. Because error detection depends on those same resources, the ability to catch and correct errors declines alongside performance. Subjective adaptation is not evidence of recovery.

Question 27Human Performance Fundamentals and Error Mechanisms

A pilot's checklist use gradually drifts from the published procedure toward a faster informal routine that still appears to work. This pattern is best described as which phenomenon?

  1. Skill-based slip
  2. Normalization of deviance Correct answer.
  3. Confirmation trap
  4. Startle effect

Explanation

Normalization of deviance occurs when small departures from procedure become accepted because no adverse outcome has yet appeared. The absence of immediate consequences reinforces the drifted practice. Over time the informal routine replaces the intended standard.

Question 28Human Performance Fundamentals and Error Mechanisms

During a high-workload departure, a pilot correctly intends to set the assigned heading but selects the previous heading value instead. How should this error be classified?

  1. A decision error under uncertainty
  2. A skill-based slip in execution Correct answer.
  3. A violation of standard operating procedure
  4. A mistake arising from a flawed plan

Explanation

The intention was correct and the plan was sound, but execution of a well-learned action went wrong. That combination defines a skill-based slip, which typically occurs under high workload or divided attention. Mistakes, by contrast, involve a faulty intention or plan.

Question 29Human Performance Fundamentals and Error Mechanisms

A pilot flying a long sector begins to feel drowsy and notices attention wandering. Which action best reflects an effective countermeasure at the individual level?

  1. Use strategic caffeine combined with active monitoring strategies and rest planning Correct answer.
  2. Increase caffeine intake and continue without other changes
  3. Rely on the autopilot and reduce monitoring tasks
  4. Delay all fatigue countermeasures until after top of descent

Explanation

Effective fatigue management combines strategic caffeine use with deliberate monitoring techniques and planned rest rather than a single measure. Caffeine alone masks drowsiness and does not restore degraded attention. Active engagement and rest planning address the underlying performance decrement.

Question 30Human Performance Fundamentals and Error Mechanisms

A crew is highly motivated to complete the flight and, when interpreting ambiguous engine indications, gives more weight to data suggesting the system is normal. Which mechanism best explains this pattern?

  1. Motivational bias in information processing Correct answer.
  2. Habituation to repeated stimuli
  3. Sensory illusion from vestibular conflict
  4. Prospective memory failure

Explanation

Motivational bias occurs when a desired outcome, such as completing the flight, skews how ambiguous evidence is weighted and interpreted. The crew does not lack information but evaluates it in a way that favors the preferred conclusion. This differs from perceptual illusions and memory failures, which have different underlying mechanisms.

Question 31Cognitive Processes: Attention, Perception, Memory, and Decision Making

In a dichotic listening task, a participant repeats aloud the message arriving at one ear while ignoring the other. What does this shadowing procedure most directly demonstrate?

  1. Binaural integration of competing speech
  2. Echoic memory capacity for both channels
  3. Categorical perception of phonemes
  4. Selective auditory attention to one channel Correct answer.

Explanation

Shadowing requires the listener to continuously reproduce one message while suppressing the competing input, which isolates the ability to select and track a single auditory stream. Performance on the ignored channel is typically poor, showing that selection filters unattended input early.

Question 32Cognitive Processes: Attention, Perception, Memory, and Decision Making

A driver engaged in a phone conversation fails to notice a pedestrian stepping into the crosswalk. This failure is best characterized as which phenomenon?

  1. Attentional blink
  2. Repetition priming
  3. Change blindness
  4. Inattentional blindness Correct answer.

Explanation

Inattentional blindness occurs when an unexpected object in the visual field goes undetected because attention is engaged by another task. The pedestrian is present in plain view but is not perceived while the driver's resources are consumed by the conversation.

Question 33Cognitive Processes: Attention, Perception, Memory, and Decision Making

Working memory as described by Baddeley includes a component that temporarily holds and manipulates spatial and visual information. What is that component called?

  1. Episodic buffer
  2. Phonological loop
  3. Visuospatial sketchpad Correct answer.
  4. Central executive

Explanation

The visuospatial sketchpad is the slave system that maintains visual and spatial representations during brief retention intervals. The phonological loop handles verbal-acoustic material instead.

Question 34Cognitive Processes: Attention, Perception, Memory, and Decision Making

A student studies a list of words and later recalls more items from the beginning and the end than from the middle. Which pattern does this describe?

  1. Spacing effect
  2. Serial position effect Correct answer.
  3. Generation effect
  4. Levels-of-processing effect

Explanation

The serial position curve shows a primacy advantage, reflecting greater rehearsal and long-term storage of early items, and a recency advantage, reflecting items still in short-term memory. Middle items receive less rehearsal and are recalled least.

Question 35Cognitive Processes: Attention, Perception, Memory, and Decision Making

Which statement best captures the Gestalt principle of proximity?

  1. Elements moving in the same direction are grouped
  2. Elements sharing a common color are grouped together
  3. Elements close together tend to be perceived as a group Correct answer.
  4. Elements forming a closed contour are seen as one figure

Explanation

Proximity holds that spatial closeness drives perceptual grouping, so nearby items are treated as belonging together. The other principles listed involve similarity, closure, and common fate respectively.

Question 36Cognitive Processes: Attention, Perception, Memory, and Decision Making

In signal detection theory, a participant's tendency to say 'present' more often regardless of the stimulus reflects which parameter?

  1. Variance of the noise distribution
  2. Criterion (beta) Correct answer.
  3. Hit rate
  4. Sensitivity (d')

Explanation

The criterion, often indexed by beta or c, captures the response bias or willingness to report a signal. Sensitivity, d', indexes the separation between signal and noise distributions independent of bias.

Question 37Cognitive Processes: Attention, Perception, Memory, and Decision Making

According to feature integration theory, searching for a target defined by a single feature such as a red circle among green circles typically produces what pattern?

  1. Serial scanning of every item
  2. Steep increase in search time with set size
  3. Flat search slope with little effect of set size Correct answer.
  4. Random search with no consistent slope

Explanation

Single-feature search is thought to be preattentive, so the target pops out and reaction time is largely independent of the number of distractors. Conjunction searches, by contrast, require focused attention and show steeper slopes.

Question 38Cognitive Processes: Attention, Perception, Memory, and Decision Making

A witness remembers the general meaning of an event but misremembers specific details such as a car's color. Which memory distinction does this best illustrate?

  1. Semantic versus episodic memory
  2. Implicit versus explicit memory
  3. Gist versus verbatim memory Correct answer.
  4. Procedural versus declarative memory

Explanation

Gist memory preserves the general meaning of an experience, while verbatim memory preserves surface details. Retaining meaning while losing specifics is the classic gist-verbatim dissociation.

Question 39Cognitive Processes: Attention, Perception, Memory, and Decision Making

A researcher presents a target digit followed 300 ms later by a mask. Detection of the target drops sharply as the mask follows sooner. This masking effect is strongest when the mask is which type?

  1. A word presented in a different modality
  2. A blank screen with no contours
  3. A pattern mask overlapping the target's spatial location Correct answer.
  4. A tone presented to the opposite ear

Explanation

Visual backward masking is most effective when the mask shares spatial location and contours with the target, competing for the same early visual representations. Masks that differ in modality or lack contours interfere far less.

Question 40Cognitive Processes: Attention, Perception, Memory, and Decision Making

A participant performs a dual task combining a digit-span task with a spatial tracking task. Performance on both declines relative to single-task baselines. Which interpretation is most consistent with working memory theory?

  1. The spatial task requires no executive control
  2. The tasks draw on separate resource pools, so interference is minimal
  3. The digit task automatically transfers to long-term memory
  4. The tasks compete for a common limited attentional resource Correct answer.

Explanation

Interference between a verbal and a spatial task that both decline suggests competition for a shared limited resource, typically the central executive. If the pools were fully independent, dual-task costs would be small.

Question 41Cognitive Processes: Attention, Perception, Memory, and Decision Making

A study finds that participants detect a briefly flashed letter more accurately when it appears at a location that was just cued by a peripheral flash. This benefit is best described as which effect?

  1. Exogenous cueing Correct answer.
  2. Negative priming
  3. Repetition blindness
  4. Endogenous cueing

Explanation

A peripheral flash captures attention automatically, producing exogenous cueing benefits at the cued location. Endogenous cueing instead relies on a centrally presented symbolic cue that the observer voluntarily interprets.

Question 42Cognitive Processes: Attention, Perception, Memory, and Decision Making

In a change detection task, observers view an image, a brief blank interval, and then a modified image. Detection is poor unless the blank interval is very short. What does this finding suggest?

  1. Verbal rehearsal fully compensates for the blank interval
  2. Change detection is unaffected by the length of the blank interval
  3. Visual memory for complex scenes is highly limited without focused attention Correct answer.
  4. Observers store complete photographic representations of scenes

Explanation

Poor change detection across even brief gaps indicates that detailed scene information is not retained automatically; without focused attention, only coarse or gist information survives. The blank interval disrupts transient visual representations.

Question 43Cognitive Processes: Attention, Perception, Memory, and Decision Making

A reader is slower to name the ink color of the word 'red' printed in green than the ink color of a neutral word. Which account best explains this Stroop interference?

  1. Color naming is automatic and competes with reading
  2. Ink colors are processed more slowly than words
  3. The neutral word is semantically related to color
  4. Reading is automatic and competes with color naming Correct answer.

Explanation

Word reading becomes highly automatic for skilled readers, so the word's meaning is activated even when the task requires color naming. The competing semantic response slows color naming, producing interference.

Question 44Cognitive Processes: Attention, Perception, Memory, and Decision Making

A student learns material in one room and is tested in a different room, performing worse than students tested in the original room. Which concept explains this result?

  1. Levels of processing
  2. Encoding specificity Correct answer.
  3. Retroactive interference
  4. Spacing effect

Explanation

Encoding specificity holds that retrieval is best when the cues available at test match those encoded with the memory. The original room provides contextual cues that support retrieval, and changing rooms removes them.

Question 45Cognitive Processes: Attention, Perception, Memory, and Decision Making

Patients with damage to the medial temporal lobe, such as the classic case of H.M., show which pattern of memory performance?

  1. Impaired formation of new explicit memories with relatively intact procedural learning Correct answer.
  2. Global loss of both procedural and declarative memory
  3. Intact short-term memory with impaired language comprehension
  4. Impaired implicit skill learning with intact explicit recall

Explanation

Medial temporal lobe damage typically impairs the consolidation of new declarative memories while leaving motor skill learning and other implicit abilities relatively preserved. Immediate short-term memory can also remain intact.

Question 46Cognitive Processes: Attention, Perception, Memory, and Decision Making

In a lexical decision task, participants respond faster to 'doctor' after seeing 'nurse' than after seeing 'table'. This facilitation is best explained by which mechanism?

  1. Episodic recall of prior trials
  2. Phonological priming of word sounds
  3. Semantic priming spreading activation Correct answer.
  4. Orthographic priming of letter shapes

Explanation

Semantically related primes pre-activate related concepts in the memory network, lowering the threshold for recognizing the target. Unrelated primes provide no such facilitation, producing slower responses.

Question 47Cognitive Processes: Attention, Perception, Memory, and Decision Making

A radiologist searches a scan for a subtle nodule among many similar structures. According to research on perceptual expertise, which factor most improves detection accuracy?

  1. Shortening viewing time for each image
  2. Increasing display brightness uniformly
  3. Removing all distractor structures from the image
  4. Repeated practice with feedback on similar images Correct answer.

Explanation

Expertise in perceptual search develops through extensive practice with feedback, which tunes feature detectors and decision criteria to the diagnostic patterns. Simple display changes or speed pressure do not build this skill.

Question 48Cognitive Processes: Attention, Perception, Memory, and Decision Making

A participant is asked to remember a string of digits while performing mental arithmetic. Performance declines as the digit load increases. Which finding does this best support?

  1. Recognition is superior to recall
  2. Long-term memory has unlimited capacity
  3. Working memory capacity is limited and shared with processing Correct answer.
  4. Attention can be divided without cost

Explanation

The tradeoff between storage and concurrent processing indicates that working memory resources are limited and shared. As the storage load rises, fewer resources remain for the arithmetic component.

Question 49Cognitive Processes: Attention, Perception, Memory, and Decision Making

A driver's perception of a pedestrian's approach is influenced by expectations formed from prior experience at that intersection. This influence of prior knowledge on perception is called which process?

  1. Perceptual constancy
  2. Sensory adaptation
  3. Bottom-up processing
  4. Top-down processing Correct answer.

Explanation

Top-down processing uses prior knowledge, expectations, and context to interpret sensory input. Bottom-up processing instead builds perception from raw sensory features without such guidance.

Question 50Cognitive Processes: Attention, Perception, Memory, and Decision Making

In a retrospective memory study, participants who generate words from cues recall more than participants who simply read the words. Which effect does this illustrate?

  1. Von Restorff effect
  2. Spacing effect
  3. Testing effect
  4. Generation effect Correct answer.

Explanation

The generation effect is the advantage in memory for information that learners produce themselves rather than passively read. Self-generation engages deeper, more elaborative encoding.