MCAT Psychological Social Foundations Quiz: 7c Habituation Dishabituation

What this quiz covers

This quiz focuses on 7c Habituation Dishabituation, giving you a quick way to practice the rules, question types, and explanations that matter most for MCAT Psychological Social Foundations.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

Question 1

1. Students increasingly stop talking with each chime over weeks because repeated exposure strengthens the response.
2. Students stop responding to the chime over weeks, then briefly respond again after the fire alarm, and later stop responding with continued chime exposure. (correct answer)
3. Students respond strongly to the fire alarm because it predicts punishment for talking.
4. Students ignore the chime because they decide it is not important, independent of repeated exposure.

Explanation: This question tests habituation and dishabituation in classroom behavioral responses. Habituation diminishes reactions to repeated cues, while dishabituation temporarily restores them post-novelty. Students initially respond to the chime but habituate over weeks, ignoring it, until a fire alarm sounds, followed by renewed response to the chime. Choice B accurately reflects habituation (initial decline) and dishabituation (brief recovery post-alarm, then re-decline). Choice A suggests increasing responses, which aligns with sensitization, not the observed pattern. In social settings, recognize habituation when group behaviors ignore familiar signals over time. Identify dishabituation if an unexpected event briefly reinstates attention to the signal, followed by habituation resuming.

Question 2

1. Participants show a renewed orienting response to the next standard notification sound, then orient less again over subsequent standard notifications. (correct answer)
2. Participants orient less to the standard notification sound because the novel ringtone confirms notifications are irrelevant.
3. Participants increasingly orient to each standard notification sound across the remainder of the session, exceeding initial orienting levels.
4. Participants orient more only if they expect an important message, regardless of the sound’s repetition or novelty.

Explanation: This question tests recognition of dishabituation in technology-related behavior. Habituation is the decrease in orienting responses to repeated notifications, while dishabituation is the recovery of responding after a novel stimulus. Participants habituated to the standard notification (decreased orienting), then heard a novel ringtone once. The correct answer (A) demonstrates dishabituation because participants show renewed orienting to the standard notification after the novel ringtone, followed by re-habituation with continued exposure, indicating the novel stimulus temporarily restored the habituated response. Answer B incorrectly suggests the novel stimulus enhances habituation, C describes persistent sensitization beyond initial levels, and D introduces an irrelevant expectancy factor. To identify dishabituation in modern contexts, look for temporary restoration of attention or orienting after interruption by a different stimulus, distinguishing it from cognitive factors like expectation or motivation.

Question 3

1. The patient startles again because the door-closing sound has become more intense over time, not because of prior repeated exposure.
2. The patient’s reduced startle over visits indicates sensitization to the door-closing sound.
3. The crash acts as a novel stimulus that temporarily restores the startle response to the previously habituated door-closing sound. (correct answer)
4. The patient’s startle returns because the patient consciously decides to react more strongly to appear attentive.

Explanation: This question probes the interpretation of dishabituation in everyday startle responses. Habituation involves a waning reaction to a familiar stimulus with repetition, while dishabituation restores that reaction temporarily after a novel event. The patient habituates to the door-closing sound over visits, showing reduced startle, until an unexpected crash occurs, followed by renewed startle to the door. Choice C is correct as it explains the crash as a novel stimulus that dishabituates the response to the door sound, leading to temporary restoration. Choice B is incorrect because it mislabels the reduced startle as sensitization, which would involve heightened responses, not diminution. In new contexts, identify habituation by noting decreased physiological or behavioral reactions to consistent stimuli over time. Recognize dishabituation when a surprising change briefly revives the original response, then allows habituation to resume.

Question 4

1. The client’s startle is larger to the book drop than to the phone notification.
2. The client’s startle to the phone notification decreases across the session until the book drop occurs, then temporarily increases on the next notification. (correct answer)
3. The client reports disliking the phone notification sound throughout therapy.
4. The client’s startle to the phone notification increases gradually across repeated notifications even before the book drop.

Explanation: This question tests understanding of dishabituation in a clinical context. Habituation involves decreased responding to repeated stimuli, while dishabituation is the temporary recovery of responding following exposure to a different stimulus. The scenario describes habituation to phone notifications (decreasing startle), followed by a novel loud stimulus (book drop), then increased startle to the next notification. Answer B correctly describes the dishabituation pattern: the client's startle to the phone notification decreases across the session until the book drop occurs, then temporarily increases on the next notification. This temporal sequence distinguishes dishabituation from other explanations - Answer A compares responses to different stimuli rather than tracking changes in response to the same stimulus, C describes subjective preference unrelated to habituation, and D suggests sensitization (increasing responses) rather than habituation. The hallmark of dishabituation is the specific sequence: habituation → novel stimulus → temporary recovery.

Question 5

1. The student is most distracted by the first train after moving in, before any repeated exposure occurs.
2. Over several weeks, the student reports fewer interruptions when trains pass.
3. After the jackhammer episode, the train once again disrupts the student’s reading more than it did immediately before the jackhammer. (correct answer)
4. The student decides to buy noise-canceling headphones to prevent distraction from trains.

Explanation: This question tests understanding of dishabituation in a real-world context. Habituation involves decreased responding to repeated stimuli, while dishabituation is the temporary recovery of responding to a habituated stimulus following exposure to a different stimulus. The student initially showed distraction to trains (strong responding), then habituated over weeks (rarely noticing trains), experienced a novel loud stimulus (jackhammer), and subsequently showed renewed disruption from trains. Answer C correctly identifies the dishabituation effect: after the jackhammer episode, the train once again disrupts the student's reading more than it did immediately before the jackhammer. Answer A describes initial responding before habituation, B describes the habituation process itself, and D describes a behavioral intervention unrelated to habituation/dishabituation. The key marker of dishabituation is the temporal sequence: habituation → novel stimulus → recovery of responding to the original stimulus.

Question 6

1. The increase in looking to the checkerboard after the novel stimulus reflects dishabituation to the checkerboard. (correct answer)
2. The increase in looking to the checkerboard shows sensitization to the novel colorful shape rather than any change in responding to the checkerboard.
3. The decline in looking across checkerboard trials indicates improved visual acuity rather than habituation.
4. The increase in looking to the checkerboard indicates habituation has strengthened because the infant is now more familiar with the image.

Explanation: This question tests recognition of dishabituation in infant research paradigms. Habituation is the decrease in responding to repeated stimuli, while dishabituation is the recovery of responding to the habituated stimulus after exposure to a novel stimulus. The infant showed classic habituation by decreasing looking time to the repeated checkerboard, then was exposed to a novel colorful shape, followed by renewed interest in the original checkerboard. Answer A correctly identifies this as dishabituation - the increase in looking to the checkerboard after the novel stimulus reflects restored responding to the previously habituated stimulus. Answer B incorrectly focuses on sensitization to the novel stimulus rather than the recovery of responding to the checkerboard, while C misinterprets habituation as a visual acuity issue, and D contradicts the concept by suggesting habituation strengthens responding. To identify dishabituation, look for the three-phase pattern: habituation to stimulus A, presentation of novel stimulus B, then recovery of responding to stimulus A.

Question 7

1. Glancing decreased due to habituation to the tapping, and the brief rhythm change produced dishabituation that restored orienting to the original tapping. (correct answer)
2. Glancing increased due to habituation to the tapping, and the rhythm change produced sensitization that reduced orienting to the original tapping.
3. Glancing decreased because participants learned the task rules, and the rhythm change produced operant reinforcement for looking.
4. Glancing returned because the tapping became louder over time, increasing stimulus intensity and therefore attention.

Explanation: This question tests understanding of habituation and dishabituation in attention research. Habituation is decreased responding to repeated stimuli, while dishabituation involves recovery of responding to the habituated stimulus after exposure to a different stimulus. Participants showed habituation by decreasing their glances toward the repeated tapping sound, then experienced a brief rhythm change (novel stimulus), followed by renewed glancing when the original pattern returned. Answer A correctly explains this pattern: glancing decreased due to habituation to the tapping, and the brief rhythm change produced dishabituation that restored orienting to the original tapping. Answer B reverses the concepts (claiming glancing increased during habituation), C invokes learning theory inappropriately, and D suggests a change in stimulus intensity that wasn't described. To identify dishabituation, look for the characteristic sequence: decreased responding through repetition, introduction of a different stimulus, then temporary recovery of the original response.

Question 8

1. The increase in ratings after the break reflects dishabituation because a different stimulus was introduced to restore responding.
2. The increase in ratings after the break reflects spontaneous recovery of responding after habituation, not dishabituation. (correct answer)
3. The decrease in ratings across trials indicates sensitization because perceived intensity grew with repetition.
4. The increase in ratings after the break indicates participants were reinforced for higher ratings during the first block.

Explanation: This question tests the distinction between spontaneous recovery and dishabituation. Habituation involves decreased responding to repeated stimuli, while dishabituation requires presentation of a different stimulus to restore responding. In this scenario, odor ratings decreased with repetition (habituation), followed by a break with fresh air, then increased ratings to the same odor. Answer B correctly identifies this as spontaneous recovery rather than dishabituation - the increase in ratings after the break reflects spontaneous recovery of responding after habituation, not dishabituation. Dishabituation would require presentation of a different stimulus (like a different odor or sensory modality), not just a break. Answer A incorrectly labels this as dishabituation, C misidentifies decreased ratings as sensitization, and D invokes reinforcement principles inappropriately. The key distinction is that spontaneous recovery occurs with time passage alone, while dishabituation requires a novel intervening stimulus.

Question 9

1. Blink magnitude increases immediately after the break even though no novel stimulus occurred during the break.
2. Blink magnitude increases immediately after a novel tone presented during the break, then decreases again with repeated air puffs. (correct answer)
3. Blink magnitude continues to decrease after the break, showing further habituation with continued exposure.
4. Blink magnitude increases gradually over many trials because the air puff becomes more intense with repetition.

Explanation: This question tests the ability to distinguish dishabituation from spontaneous recovery. Habituation is the decrease in blink reflex to repeated air puffs, while dishabituation requires a novel stimulus to restore responding, unlike spontaneous recovery which occurs with rest alone. The participant habituated to air puffs (decreased blink magnitude) and then experienced a break. The correct answer (B) demonstrates dishabituation because blink magnitude increases only when a novel tone is presented during the break, then decreases again with repeated air puffs, showing that the novel stimulus was necessary for response recovery. Answer A describes spontaneous recovery (increase after rest alone), C shows continued habituation, and D incorrectly suggests stimulus intensity changes. The critical distinction is that dishabituation requires a novel stimulus to interrupt habituation, while spontaneous recovery occurs through passage of time alone, making the presence of a novel stimulus the key diagnostic feature.

Question 10

1. Brush-stroke intensity ratings increase on the first trial after the cool touch, compared with the last brush-stroke trial before the cool touch. (correct answer)
2. Brush-stroke intensity ratings remain high across all trials, indicating no change with repetition.
3. Brush-stroke intensity ratings decrease more rapidly after the cool touch than they did at the beginning of the session.
4. Intensity ratings increase only when the participant is instructed to pay close attention to the brush stroke.

Explanation: This question tests understanding of dishabituation using subjective intensity ratings. Habituation is the decrease in perceived intensity with repeated stimulation, while dishabituation is the recovery of perception following a novel stimulus. The participant habituated to brush strokes (ratings dropped to "barely noticeable"), then experienced a novel cool metal touch. The correct answer (A) demonstrates dishabituation because intensity ratings increase for the brush stroke after the cool touch, showing renewed sensitivity to the previously habituated stimulus. Answer B shows no habituation occurred initially, C describes enhanced habituation rather than recovery, and D introduces an irrelevant attentional instruction. The key insight is that dishabituation affects subjective perception as well as behavioral responses, with the novel stimulus temporarily restoring sensitivity to the habituated stimulus rather than permanently altering perception.

Question 11

1. SCR to the next tap increases relative to the last few taps, even though tap intensity and timing are unchanged. (correct answer)
2. SCR to the peppermint scent is lower than SCR to the first tap because the participant is generally calmer over time.
3. SCR to the next tap decreases further because the participant has learned the tap predicts no harm.
4. SCR increases only when the participant is told that peppermint improves alertness, regardless of the tap.

Explanation: This question tests understanding of stimulus-specific habituation and dishabituation using physiological measures. Habituation is the decrease in skin conductance response (SCR) to repeated stimuli, while dishabituation demonstrates that habituation is stimulus-specific by showing response recovery after a novel stimulus. The participant habituated to wrist taps (decreased SCR), then experienced a novel peppermint scent. The correct answer (A) shows dishabituation because SCR to the tap increases after the scent, despite unchanged tap parameters, demonstrating that the novel stimulus restored responsiveness to the habituated stimulus. Answer B incorrectly compares responses to different stimuli, C shows continued habituation, and D introduces an irrelevant cognitive factor. The key principle is that dishabituation reveals habituation as stimulus-specific learning rather than general fatigue, shown by selective response recovery to the original stimulus after novel stimulation.

Question 12

1. The patient startles strongly to the next beep, then shows reduced startle again as the beep repeats. (correct answer)
2. The patient startles less and less to the next several beeps, continuing the same downward trend as before the door slam.
3. The patient reports that the beep is still unpleasant, even though the measured startle response remains low.
4. The patient startles more to every beep than they did at the beginning of the session, regardless of repetition.

Explanation: This question tests understanding of dishabituation in a clinical context. Habituation is the decrease in startle responses through repeated exposure, while dishabituation is the temporary recovery of the response following a novel stimulus. The patient habituated to the medical device beep during the session, then experienced a novel door slam. The correct answer (A) demonstrates dishabituation because the patient shows renewed startle to the next beep, followed by re-habituation with repetition, indicating the novel stimulus temporarily restored the habituated response. Answer B incorrectly shows continued habituation unaffected by the novel stimulus, C focuses on subjective experience rather than measured startle, and D describes persistent sensitization exceeding initial levels. To identify dishabituation clinically, look for temporary return of the habituated response after interruption, followed by re-habituation, which helps distinguish therapeutic progress from mere response suppression.

Question 13

1. The orienting response to the next light flash increases compared with the immediately preceding flashes, then declines again with continued flashes. (correct answer)
2. The orienting response stays minimal to all subsequent light flashes, indicating stable learning.
3. The orienting response increases gradually across many subsequent flashes, suggesting the rat is becoming more sensitive to light over time.
4. The rat shows a strong orienting response only when the light is paired with food delivery.

Explanation: This question tests the ability to distinguish dishabituation from random variability in animal behavior. Habituation is the decrease in orienting responses to repeated stimuli, while dishabituation is the systematic recovery of responding following a novel stimulus. The rat habituated to light flashes (minimal orienting), then experienced a novel odor. The correct answer (A) demonstrates dishabituation because it shows both immediate recovery of the orienting response and subsequent re-habituation with continued flashes, indicating a systematic pattern rather than random fluctuation. Answer B incorrectly shows no effect of the novel stimulus, C describes gradual sensitization rather than immediate recovery, and D introduces an irrelevant conditioning element. The key to identifying dishabituation is the combination of immediate response recovery after the novel stimulus and subsequent decline with continued exposure, distinguishing it from random variations or other learning processes.

Question 14

1. The student pauses and looks toward the window when the next train passes, despite having ignored trains earlier that week. (correct answer)
2. The student ignores the next train as usual, because repeated exposure permanently eliminates the response.
3. The student becomes increasingly distracted by each subsequent train over the rest of the night, more than during week 1.
4. The student is distracted only when thinking about exams, regardless of whether a train passes.

Explanation: This question tests understanding of dishabituation in a naturalistic setting. Habituation is the decrease in orienting responses to repeated, irrelevant stimuli, while dishabituation is the temporary recovery of responding following a novel stimulus. The student habituated to train sounds over 4 weeks (no longer pausing to look), then experienced a novel jackhammer sound. The correct answer (A) shows dishabituation because the student resumes the orienting response (pausing and looking) to the next train, demonstrating that the novel stimulus temporarily restored responsiveness to the habituated stimulus. Answer B incorrectly suggests habituation is permanent and unaffected by novel stimuli, C describes sensitization exceeding initial responses, and D introduces an irrelevant cognitive factor. To recognize dishabituation, look for temporary restoration of the original response pattern after interruption by a different stimulus, distinguishing it from permanent habituation or sensitization effects.

Question 15

1. Looking time decreases across repeated checkerboard trials, then temporarily increases when the checkerboard reappears after the novel face. (correct answer)
2. Looking time increases across repeated checkerboard trials as the infant becomes sensitized to the pattern.
3. Looking time remains constant across all checkerboard trials because infants cannot habituate to visual stimuli.
4. Looking time increases only during the novel face trial, with no change when the checkerboard returns.

Explanation: This question assesses understanding of habituation and dishabituation in infant attention paradigms. Habituation is the reduction in response, such as looking time, to a repeated stimulus, whereas dishabituation involves a temporary resurgence of that response after a novel stimulus is introduced. Here, the infant's looking time to the repeated checkerboard decreases, showing habituation, and then a novel face is presented before returning to the checkerboard. Choice A correctly illustrates this by noting the temporary increase in looking time to the checkerboard post-novel stimulus, followed by a decline, which demonstrates dishabituation. Choice B fails as it describes sensitization, where looking time increases with repetition, which contradicts the observed decrease in habituation. For identifying habituation in other scenarios, look for diminishing engagement with unchanging stimuli over trials. To spot dishabituation, verify if a new stimulus causes a brief spike in response to the original, then resumption of decline.

Question 16

1. High orienting to the light on every trial because the light is always salient and cannot be habituated to.
2. An increase in orienting across light trials because repeated stimulation strengthens the response.
3. A decrease in orienting across light trials with no change after the tone because the tone replaces the light.
4. A decrease in orienting across light trials followed by a temporary increase in orienting to the light after the tone. (correct answer)

Explanation: This question assesses dishabituation in animal orienting behaviors. Habituation reduces responses to repeated stimuli, and dishabituation temporarily reinstates them after a novel interruption. The rat's orienting to the light declines over trials, then a tone is presented, followed by increased orienting to subsequent lights. Choice D correctly identifies this as dishabituation, with decreased orienting pre-tone and temporary increase post-tone. Choice B is incorrect as it describes increasing orienting, suggesting sensitization instead of habituation. To recognize habituation in new studies, observe if initial high responses fade with repetition. For dishabituation, look for data showing a spike in response to the habituated stimulus immediately after novelty, then decline.

Question 17

1. SCR to the vibration is high on every trial, including the first 8 trials, with no downward trend.
2. SCR to the vibration declines over trials 1–8, rebounds immediately after the flash, and then declines again with further vibrations. (correct answer)
3. SCR declines over trials 1–8 and remains equally low after the flash with no change.
4. SCR increases over trials 1–8 as repeated stimulation makes the vibration progressively more aversive.

Explanation: This question examines dishabituation in physiological responses like skin conductance. Habituation is characterized by declining responses to repeated stimuli, and dishabituation by a temporary response increase after a novel stimulus. The participant's SCR decreases to the vibration over trials, then a flash is presented, followed by resumed vibrations. Choice B correctly depicts dishabituation with the SCR rebound post-flash and subsequent decline, showing recovery due to the novel stimulus. Choice D fails as it suggests increasing SCR, indicative of sensitization rather than the observed habituation pattern. To spot habituation elsewhere, look for response attenuation with stimulus repetition in measures like arousal or attention. For dishabituation, confirm a pattern of response recovery specifically to the original stimulus after novelty, not sustained elevation.

Question 18

1. Blink magnitude continues to decrease on trials 13–15 with no change following the pure tone.
2. Blink magnitude increases on the first white-noise trial after the pure tone, then declines again with subsequent white-noise trials. (correct answer)
3. Blink magnitude increases progressively across trials 1–12 as participants become more reactive to the repeated noise.
4. Participants report that they expect the noise bursts and therefore choose to blink less to conserve effort.

Explanation: This question tests the concept of dishabituation in the context of behavioral adaptation to repeated stimuli. Habituation refers to a decrease in response to a repeated stimulus over time, while dishabituation is the temporary recovery of that response following the presentation of a novel stimulus. In this vignette, participants initially show a decreasing startle response (blink magnitude) to repeated white-noise bursts, indicating habituation, and then a novel pure tone is introduced before resuming the white noise. Choice B is correct because it describes the increase in blink magnitude to the white noise immediately after the pure tone, followed by a decline, which exemplifies dishabituation as the novel tone restores responsiveness to the habituated stimulus. In contrast, choice A is incorrect as it describes continued habituation without any recovery, failing to capture the role of the novel stimulus in dishabituation. To recognize dishabituation in new contexts, check for a pattern where a response diminishes with repetition but temporarily rebounds after an interrupting novel event. Additionally, confirm that the response declines again with further repetition of the original stimulus, distinguishing it from sensitization where responses might increase progressively.

Question 19

1. Birds show reduced fleeing over repeated car-alarm presentations before the hawk call is introduced.
2. Birds flee more strongly to the car alarm immediately after the hawk call, compared with their response just before the hawk call. (correct answer)
3. Birds flee less to the hawk call than to the car alarm because the hawk call is novel.
4. Birds resume feeding faster over time because they learn the alarm is not followed by food removal.

Explanation: This question evaluates the application of dishabituation to adaptive behaviors in animals. Habituation occurs when responses to a repeated, non-threatening stimulus decrease, and dishabituation is the restoration of that response after exposure to a different stimulus. In the study, birds initially flee from the car alarm but habituate over time, reducing fleeing, until a novel hawk call is played before resuming the alarm. Choice B accurately captures dishabituation by describing increased fleeing to the car alarm right after the hawk call, compared to before, indicating temporary recovery. Choice A is misleading as it only describes habituation without addressing the recovery post-novel stimulus. To detect habituation in novel situations, observe if avoidance or orienting behaviors lessen with repeated neutral exposures. For dishabituation, ensure the pattern includes a brief response intensification to the original stimulus following a novel interruption, not just to the novel one itself.

Question 20

1. The student awakens less often to trains over several weeks as exposure continues.
2. After the thunder, the previously reduced waking response to the train temporarily returns, then diminishes again with later trains. (correct answer)
3. The student begins to dislike trains more over time and reports increased annoyance with each passing train.
4. The student awakens to thunder because thunder is louder than a train.

Explanation: This question explores dishabituation in sleep disruption from environmental noises. Habituation decreases reactions to recurring stimuli, while dishabituation revives them briefly after a novel event. The student habituates to train noise over weeks, reducing awakenings, until thunder occurs, followed by awakening to the next train. Choice B exemplifies dishabituation by noting the temporary return of waking to the train post-thunder, then resumption of reduced responses. Choice A only describes habituation without the recovery element, missing dishabituation. In everyday contexts, identify habituation when disturbances become ignorable with familiarity. Spot dishabituation if a startling event temporarily heightens sensitivity to the familiar stimulus, followed by re-adaptation.